POLICE ACADEMY APTITUDE TEST

QUESTIONS AND ANSWERS (UP-TO-

DATE)
POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

2021
TIME: 45MIN

1. Without .......... words he accused him directly of treachery. 21. A plant which grows on another plant without apparent
A. amending B. modifying C. mixing D. mincing E. minimizing harm to the host plant is called A. a parasite B. an epiphyte
2. They tried to cash in the people ignorance A. under B. on C. a saprophyte D. a predator E. a hermaphrodite
C. against D. with E. at 22. Which of these types of skeleton is most appropriate to
3. Always remember to ........... the lights before leaving the room the cockroach? A. hydrostatic skeleton B. exoskeleton C.
A. put on B. put off C. switch off D. blow out E. remove endoskeleton D. cartilaginous skeleton E. bony skeleton
4. I am disappointed the ways you conducted yourself at the 23. Which of these is not true of the insect? The possession of A.
party. A. by B. for C. due D. in E. at two pairs of antennae B. jointed appendages C. exoskeleton D.
5. The proprietors should be blamed for such a deplorable three pairs of legs E. segmented body
condition in the nursery schools ........... A. isn’t it B. 24. All living things A. photosynthesis B. respire C. move
shouldn’t they C. should they D. is it E. wouldn’t they D. transpire E. feed
6. Do you mind .......... another minute or two? A. to wait B. wait 25. A secchi disc is used in the determination of A. rainfall B. tides
C. waiting D. being waited F. waits C. waves D. turbidity E. current velocity
7. It had been raining before the match started........... A. isn’t it 26. Which of the following is not an excretory product? A. urine
B. hasn’t it C. hadn’t it D. wasn’t it E. haven’t it B. sweat C. feaces D. salts E. carbon dioxide
8. Mary goes to school .......... bus A. in B. on C. with D. of E. by 27. Which of the following organs produce bile? A. gall bladder
9. The plane overshot the ...........in a minor accident A. read B. pancreas C. spleen D. liver E. stomach
B. hanger C. runway D. tarmac F. railway 28. Which of the following food substances is digested in the
10. Journalists always collect and publish ........... A. information stomach? A. carbohydrates B. fats and oil C. fats and proteins
B. informations C. an information D. much information E. D. proteins E. carbohydrates and fats
every information 29. For pollination and fruit formation, the essential part(s) of the
11. A micrometer is defined as one millioneth of a millimeter. flower should be the A. corolla B. ovary C. pistil (gynoecium’s)
A length of 12,000 micrometer may be represented as? A. D. ovules E. receptacle
0.00012M B. 0.0000012M C. 0.000012M D. 0.00000012M F. 30. Which part of the human brain is concerned with reflexes
0.000000012M controlling the rate of heart beat and breathing? A. medulla
3 2 x B. cerebrum C. cerebellum 0. pineal body E. olfactory lobe
12. Factorize 3x + 4x - l3 + 6 completely, given that x – is a factor.
A. (x - 1)(x - 3)(x + 2) B. (x - l)(x +3)(x -2) C (x 1)(x +3)(3x -2) D. 31. Which of the following is not a consequence of a force filed? A.
(x - 1)(x + 3)(3x -2) 2. (x - lXx - 3)(x + 2) weight B. surface tension C. gravitational pull D. magnetic force
13. If the price of oranges was raised by ½k per orange, the E. electric force
number of oranges a customer can buy for N2.40 will be less by 32. Which of the following is used to determine the relative
16. what is the price of an orange? A. 21/2 k B. 31/2k C. 51/2k density of the acid in a car battery? A. hypsometer B.
D. 20k 2. 25k hygrometer C. manometer D. hydrometer E. nanometer
14. Find all real numbers x which satisfies the inequality 1/3(x + 1) 33. The motion of the prongs of sounding tuning fork is? A. random
1 > 1/5(x + 4). A. x < 11 B. x<-1 C. x>6 D. x> 11 E.x>-6 B. translational C. rotational D. vibration E. vibratory
15. 7 pupils of average age 12 years leave a class of 25 pupils average and rotational
age l4years. If 6 new pupils of average age 11 years join the class, 34. A simple microscope forms an image twice the size of an object If
what is the average age of the pupils now in the class? A. 13 years the focal length of the lens of microscope is 29cm, how far is the
B. 12 years 11/2 months C. 13 years 5 months object from the lens? A. 10m B. 20m C. 30m 0. 40m E. 60m
D. 13 years 10 months E. 13 years 71/2 months 35. An avocado fruit drops from the top of a tree 45m tall. How
16. Given a regular hexagon, calculate each interior angle of long does it take to reach the ground? A. 3.Os B. 4.5s C. 6.Os
the hexagon A. 60° B. 120° C.45° 0.135° 2.140° D. 8.6s E. 9.Os
2
17. Without using tables solve the equation: 8x = 2/5. A. 4 B. 6 C. 8 36. Which of the following is a scalar quantity? A. momentum
D. 10 E. 12 B. Acceleration C. displacement D. Distance E. force
18. A student measures a piece of rope and found that it was 1 37. A ball bearing is gently released from rest and allowed to fall
.26m long. If the actual length of the rope is I .25m, what was through a viscous fluid. Which of the following statements
the percentage error in the measurement? A. 0.40% B. 0.01% about the motion is correct? A. its acceleration decreases
C. 0.25% 0.0.89% 2.0.80% before terminal velocity is attained B. when terminal velocity
19. Express the product of 0.21 and 0.34 in standard form A. 7.14 is attained the acceleration of the fluid becomes zero C. its
-3 -1 -2 -4 -5
x 10 B. 7.14 x 10 C. 7.14 x10 D.7.14 x 10 E 7.14 x 10 velocity increases before terminal velocity is attained D. there
20. If 5, 8, 6 and 2 occur with frequencies 3, 2, 4 and 1 respectively, is no resultant force on the ball before it attains terminal
find the product of the modal and median number A. 36 B. 48 velocity
C. 30 0.40 2. None of the above

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

38. When the vapour of a substance is in equilibrium with its own B. oxygen and chlorine C. chlorine and water 0. sodium
liquid, it is said to be A. gaseous B. unsaturated C. saturated amalgam and chlorine E. sodium hydroxide and water
D. diffused E. liquefied 45. When starch undergoes complete enzyme-catalysed hydrolysis,
39. A man standing between two parallel mirrors in a barbers shop the resulting product is A. glucose 8. maltose C. sucrose 0.
will see the following number of his own image A. eight B. two fructose E. cellulose
C. four D. one 2. Infinite 46. Compounds that have the same molecular formular but different
40. If the wave length of a wave traveling with a velocity of 360m/s is structures are said to be A. allotropic B. polymorphic
60cm, the period of the wave is A. 6s B. 3.5s C. 0.17s 0. 0.61s C. polymeric D. isomeric E. isotropic
E. 3s 47. The maximum number of electrons that can be accommodated in
3 3 the shell having the principal quantum number 3 is A. 3 B. 9
41. 120cm of hydrogen were sparked with 60cm of oxygen at
110°c. what was the volume of steam produced? The equation C. 10 0. 18 E. 32
for the reaction is: 2H2(g) + O2(g) ------- 2H2O(g) A. 30cm B. 60cm 48. The following acids are non-basic except A. methanoic acid B.
C. 90cm D. 120cm E. 150cm dioxinotrate iN acid C. ethanedoic D. oxochlorate I add E.
42. Catalytic hydrogenation of oils results in the production of hydrobromic acid
A. soaps B. detergents C. alkanes 0. margarine 2. Butter 49. What is the quantity of electricity produced when a current of
43. Which of the following compounds will undergo 0.5A is passed for 5 hours 45 mins? (F = 96500C). A. 0.11F B.
additional reaction? A. ethyne B. butane C. pentane D. 0.12F C. O.22F D. 1.IF E. 2.2F
ethanol E. tetrachioromethane 50. Which of the following pH values is likely to be that
44. The products of the electrolysis of dilute sodium chloride close slightly alkaline system? A.2 B.5 C.! D.8 E.13
solution with platinum electrodes are A. hydrogen and oxygen

SOLUTION TO POLAC APTITUDE TEST 2021 EXAM

1.A 2.C 3.C 4.E 5.B 6.C 7.C 8.E 9.C 10.A
11.C 12.D 13. B 14.D 15.D 16.B 17.A 18.E 19.C 20E
21.B 22.B 23.A 24.E 25.D 26.C 27.D 28.C 29.C 30.A
31.B 32.D 33.D 34.** 35.A 36.D 37.C 38.C 39.E 40. N/A
41.D 42.D 43.A 44.A 45.A 46.D 47.D 48.C 49.C 50.D

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2020
TIME: 45 MIN
1. lfeyinwa found that thieves had entered her house in her 13. The alloy used for metal work and plumbing contains.
absence. She went to the police to report the .......... A. A. lead and tin B. iron and carbon C. copper and tin D.
breakout B. breakup C. break in D. breakthrough E. breakin aluminium and copper E. aluminum and iron
2. Gone are the days when he ...........Enjoy patronage A. would 14. The components of universal indicator solution can best be
B. will C. could D. used to E. can separated by A. chromatography B. filtration C. evaporation
3. All .......... Well with Peter. A. are not B. have not been C. fractional distillation B. transpiration.
C. were not D. is not E. aren’t -3
15. The oxidation numbers of phosphorous in PO 4 is A.+1 B.
4. The villagers looked .......... their leader for good examples. +2 C.+3 D.+5 E.+7
A. up to B. onto C. up at D. forward to E. into 16. Water can be obtained as the only product during A.
5. Emeka failed because the examination was .......... difficult combustion of hydrocarbons B. neutralization of an acid by
for him. A. so B. very C. highly D. too E. much a base C. combustion of hydrogen D. electrolysis of brine E.
6. The dancers were all in .......... before their departure. A. boiling water
good spirits B. good spirit C. high spirit D. high spirits E. 17. The oxidation of ammonia in excess air produces A. N2O2 B.
high spirit N2O C. NO2 D. N2O4 E. NO
7. The suspect defrauded his .......... victim of large sums of 18. The gasification of coke is used for the manufacture of A.
money. A. unsuspected B. unsuspecting C. unexpected D. producer gas B. natural gas C. synthetic gas D. industrial gas
unexpecting E. suspecting E. artificial gas.
8. The judge acquitted the accused all the eight counts. A. of 19. The solubility curve shows the variation of solute
B. in C. from D. upon E. on concentration with A. volume B. temperature C. vapour
9. My uncle is one of the .......... of society A. elitists B. elites D. pressure B. weight
C. elite D. elitist. 3
20. The density of a certain gas is 1 .98g1dm at s.t.p what is the
10.all probability, the train will arrive today. A. in B. molecular mass of the gas? (molar volume of gas at s.t.p. =
under C. for D. by B. upon 3
22.4dm ) A. 44.Og B. 54.Og C. 26.Og D. 31 .Og B. 39.Og
11. Which of the following solids has a network structure? 21. Simplify: Log6+log2-logl2. A.-4 B.-1 C.0 D.8 E.10
A. diamond B. iodine C. sulphur D. graphite E. butter 22. The interior angles of a pentagon are (2x + 5)°, (x + 20)°, x°,
12. The following gases decolourize bromine water except. (3x - 20)° and (x + 1 5)°. find the value of x. A.80° B.70° C.65°
A. C2H6 B. C2H4 C. C2H2 D. C3H4 E.C4H6 D.40° E.30°
23. A train travels 60km in M minutes. If its average speed is
400km per hour find the value of M, A.15 B.12 C.10 D.9 E.7

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net

24. A baker used 40% of a 50kg bag of flour. If 1/8 of the 40. Plants which can survive in places where the water supply
amount used was for cake, how many kilograms of flour is limited are A. Bryophytes B. mesophytes C. xerophytes D.
was used for cake? A. 2½ B. 6¼ C. ½ D. 17 ½ E. 19 1/3 hyrophytes E. pteridophytes
25. Find the average of the first four prime numbers 41. Which of the following types of waves cannot travel through a
greater than 10. A. 20 B. 19 C. 17 D.15 E. 13 vacuum? A. sound waves B. light waves C. infra-red waves
26. Find the mean deviation of 6, 7, 8, 9, 10. A. 1.2 B. 1.5 C. D. x-radiation E. radio waves
2 D.8 E. 10 42. The temperature at which the water vapour in the air
27. The variance of a given distribution is 25, what is saturates the air and begins to condence is known as A.
the standard deviation? A. 125 B. 75 B.75 lb.5 E.3 boiling point B. melting point C. triple point D. dew point
28. Express 7/19 as a percentage, correct to I decimal place. A. E. critical temperature
2.7% B. 3.7% C. 27.1% D.36.8% E.42.2% 43. The motion of the moving skin of a talking drum can
29. Given that Log4x = -3, find x. A. 1/81 B. 1/64 0.64 D. 881 rightly be described as A. translational B. random C.
E. 102 rotational D. oscillatory E. transitory
30. A chord of a circle radius 26cm is 10cm from the center of 44. What is the relative permittivity of a capacitor if its
circle. Calculate the length of the chord. A. 16cm - capacitance with a medium as dielectric is I 6farads, and its
B.27.86cm 0.32cm D.4Ocm E.48cm capacitance with vacuum as dielectric is 2farads? A.-1 B. -½
31. Which of the following hormones is produced during C.2 D.6 E.8
fright or when agitated. A. Insulin B. adrenalin C. 45. The activity of a radioactive substance depends on A.
thyroxine D. pitiutrin temperature and purity B. temperature and age C. age,
32. Which of the following animals is cold blooded? A.cat purity and temperature D. purity and age E. none of
B. lizard C. whale D. Bird E.dog the above
33. Spirogyra reproduces vegetatively by A. spore production B. 46. The principle of the transmissibility of pressure in fluids at
fragmentation C. multiple fission D. binary fission E. division rest in all directions is known as A. Achimedes principle B.
34. All the following are digestive enzymes except A. bile Floatation principle C. Newton’s law D. Pascal’s law E.
B. lipase C. maltase D. pepsin E. ptyalin Boyle’s law
35. If a 26year old man married a one eyed woman and they 47. Change of state is accompanied by change of A. temperature
had four children , how many of them would be blind like B. volume C. heat content D. temperature and volume E.
their father? A. all B.3 C.2 D. 1 E. none volume and heat content
36. A tapeworm has no alimentary canal because A. it is an 48. The lack of power of accommodation which is mainly due
antotropic B. it does not feed C. it has no enzymes D. its to the hardening of the eye is called A. myopia B.
body absorbs digested food E. it is long hypermetropia C. presbyopia D. eye ring E. astigmatism
37. Where is energy produced in the cell? A. nucleus 2
49. The hatch door of a submarine has an area of O.5m . the
B. nucleolus C. Lysosomes D. mitochondria specific gravity of sea water is 1.03. (assume that g = 10/s, and
38. W Which of the following structure is not found in a female neglect the atmospheric pressure). The force exerted by sea
agama lizard? A. pre-anal pads B. eardrums C. nuchal crest water on the hatch door at a depth of 200m is A. 1.03
D. gular fold E. chloroplast 5 3 5
x10 N B. 1.03 x 10 N C. 1.06 x 10 N D.2.06x106N E.
4 2
39. Which of the following disease is NOT caused by a virus A. 1.03x 10 N/m
rinderpest B. maize rust C. Newcastle disease D. swine fever 50. The point beyond which a stretching spring does not return to
E. nasal scale its original length is called A. breaking point B. elastic limit
C. spring constant D. elastic point E. release point
SOLUTION TO POLAC APTITUDE TEST 2020 EXAM
1.C 2.D 3.D 4.A 5.D 6.B 7.C 8.A 9.B 10.B
11.A 12.A 13. A 14.A 15.D 16.C 17.E 18.A 19.B 20A
21.C 22.** 23.D 24.A 25.D 26.D 27.D 28.E 29.B 30.E
31.B 32.C 33.B 34.A 35.A 36.D 37.D 38.E 39.B 40. C
41.A 42.D 43.D 44.C 45.C 46.D 47.C 48.C 49.B 50.B

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2019
TIME: 45 MIN
1. I have the .......... of meeting him A. privilege B. privilege 4. The president’s speech .......... at 7pm yesterday. A. is
C. previledge D. priviledge E. privileges broadcast B. has been broadcast C. were broadcast D. was
2. My price for the shoes is fifty naira. I cannot .......... broadcast E. have been broadcast
anything less than that. A. bear with B. settle for C. agree 5. The students were-advised to look .......... difficult words in
with D. tolerate E. settle with the dictionary. A. in B. on C. out D. into E. Up
3. The eldest son took a foolish decision which made him ………. 6. The building .......... because of weak structural foundation. A.
his claim to the traditional title A. neglect B. yield C- tumbled B. succumbed C. somersaulted D. collapsed E.
disclaim D. forfeit E. neglected collapsed

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7. Since the writer did not indicate his name, the editor 28. Which of the following will convert a milliammeter to a
decided not to publish such ........... article A. a discourteous voltmeter? A. low series resistance B. low parallel resistance
B. an anonymous C. a cowardly D. a libellous E. unfriendly C. high series resistance D. high parallel resistance E.
8. He was charged with complicity .......... the abortive coup. medium parallel resistance
A. in B. for C. about D. on E. with 29. The distance between the fixed points of a centigrade
9. Of what he said made no sense. A. much B. majority C. thermometer is 20cm. what is the temperature when the
plenty D. many E. much mercury level is 4.5cm above the lower mark? A. 22.5°C
10. things she had in the room were thrown out. A. so B. 29.0°C C. 90.0°C D. 100.0°C E. 110.0°C
few B. the few C. all few D. very few E. a few 30. The amount of heat needed to raise the temperature of
11. Pure solvents are obtained by A. distillation B. condensation 10kg of copper by 1K is it’s A. specific heat capacity B. heat
C. extraction D. evaporation E. dissolution capacity C. latent heat D. internal heat E. specific latent heat
12. Environmental pollution is worsened by the release from 31. lf sin(x+30)°=cos4o°,findx. A.10° 3.20° C.59° 0.65° E.80°
the automobile exhaust o A. water vapour B. steam C. 32. Find the 9th term of the arithmetic progression, 18, 12,6,0,6
smoke D. heavy metals E. steam and smoke A. -54 B. -30 C. 30 D.42 E.54
13. Sieving is a technique used to separate mixtures containing 33. Solve the equation: 4/a+ 1/5a=3 A.2 ½ A B. 1 2/5 C. 1 1/3
solid particles of A. small sizes B. large sizes C. different sizes D. 1 4/15, E.2 4/5
D. the same size E. one size 34. What is the number whose logarithm to base 10is 3.47712?
14. Nitrogen obtained from the liquefaction of air has a higher A. 3.0 B. 0.3 C. 0.03 E.0.00003
density than that obtained from nitrogen containing n-2 n-1
35. The nth term of a sequence is given by (-1 ) 2 , find the
compounds because the former contains A. water vapour sum of the second and third terms.A.-2 B.1 C.2 D.6 E.-1
B. oxygen C. carbon (iv)oxide D. rare gases 36. Evaluate log1025 + log10,32 - 1og108. A. 0.2 B.2 C. 100 D. 409
15. Hydrogen is used in oxy-hydrogen flames for melting E. 4
metals because it A. involves a lot of heat when burnt B. 2x 3x
37. Which is the value of x satisfying the equation 4 /4 = 2?
combines explosively with oxygen C. is a very light gas D. is A. -2B.½C.½0.2E.3
a rocket fuel E. it combines with air x X
38. Solve for x if 25 + 3(5 )=4 A. 1 or-4 B. 0 C. 1 D. -4 or 0 E. -1
16. Polyvinyl chloride is used to produce A. bread B. pencils C.ink 39. Teams P and Care involved in a game of football. What is the
D. pipes E. pots probability that the game ends in a draw. A. ¼ B. 1/3 C. ½
17. The addition of water to calcium oxide leads to A. a physical D. 2/3 E.2/5
change B. a chemical change C. the formation of a mixture 40. Find the value of m if 13m + 24m = 41m. A.8 B.6 C.5 0.2 E.6
D. an endothermic change 41. Hydra removes undigested food by A. passing it through the
18. The metal that will react with water only in the form of anus B. passing it through the mouth C. means of a
steam to liberate hydrogen gas is A. calcium B. aluminum contractile vacuole D. egesting it through the body surface
C. iron D. zinc E. platinum E. passing it through the nose
3
19. 35cm of hydrogen was sparked with 12cm of oxygen at
3 42. A feature which adopts birds to flight is the possession of
110°c and 76OmmHg to produce steam. What percentage A. scaly legs B. light bones C. two walking legs D. a pointed
of the total volume of gas left after the reaction is beak E. combs
hydrogen? A.11% 3.31% C.35% D.69% E.80% 43. Physiological adaptation to very dry condition in animals
20. In the extraction of iron in the blast furnace, lime stone is used is called A. hibernation B. aestivation C. rejuvenation D.
to A. release CO2 for the reaction B. reduce the iron ore xeromorphism
C. increase the strength of the iron D. remove impurities 44. The organelle involved in tissue respiration is the A.
21. The force with which an object is attracted to the earth is it’s endoplasmic B. ribosome C. golgi body D. mitochondrion
A. acceleration B. mass C. gravity D.weight E. momentum 45. The blood vessel which carries blood from the alimentary
22. A train has an initial velocity of 44m/s and an acceleration of canal to the lever is A. hepatic artery B. hepatic vein C.
2 hepatic portal vein D. mesenteric E. hepatic mesenterism
-4m/s . its velocity after 10s is A. 2m/s B. 4m/s C. 8mIs D.
1 2m/s E. 1 6m/s 46. Soil with the finest particle is called A. silt B. clay C. sand
23. A man of mass 50kg ascends a flight of stairs 5m high in D. gravel E. latrite
5seconds. If the acceleration due to gravity is 10m/s°, the 47. lnterveinal chlorosis is normally associated with the
power expended is A. 500W B. 400W C. 250W 0. 200W E. deficiency of A. magnesium B. potassium C. iron D. calcium
100W E. iodine
24. Longitudinal waves do not exhibit A. refraction B. reflection 48. In Amoeba, osmoregulation is carried out by the A.
C. diffraction D. polarization E. disagrigation pseudopodium B. food vacuole C.
25. The unit of quantity of electricity is called A. amperes B. contractilevacuoleD.nucleus
the volt C. the coulomb D. the ammeter 49. In animals, meiosis comes A. after fertilization B. after every
26. Which of the following is NOT a fundamental S.l. unit? mitotic division C. before fertilization D. before every mitotic
A. metre B. ampere C. Kelvin D. radian division E. during fertilization
27. A simple pendulum with a period of 2.0s has its length 50. Which of the following is transmitted through mosquito bite
doubled. Its new period is A.1.00s B.1.41s C.0.35s A. filariasis B. typhus C. plague D. schistomaisis E. leprosy
D.2.03s E.2.83s

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net
SOLUTION TO POLAC APTITUDE TEST 2019
1.A 2.B 3.D 4.D 5.E 6.D 7.B 8.B 9.E 10.B
11.D 12.C 13. C 14.D 15.B 16.D 17.B 18.C 19.B 20D
21.C 22.B 23.A 24.D 25.C 26.D 27.B 28.C 29.A 30.A
31.B 32.B 33.B 34.E 35.A 36.B 37.B 38.B 39.A 40. B
41.B 42.B 43.D 44.D 45.C 46.B 47.A 48.C 49.D 50.E

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2018
TIME: 35 MIN

Answer all questions: shade the answer sheet as appropriate with HG pencil only,
CHEMISTRY
1.
3
A mixture contains 20cm of hydrogen, 35cm of oxygen,
3 D. speed
3 3 13. Note that only senior members of staff have the ..........
15cm of carbon dioxide and 10cm of nitrogen at S.T.P,
which of the following gives the mole fraction of hydrogen of using the toilet upstairs A. permission B. occasion C.
in this mixture? A.0.02 B.0.16 C.0.20 D.0.2 5 E.20 privilege D. habit
2. 0.07g of a hydride of carbon occupies 56 at S.T.P when 14. The chief priest will .......... the main into the cut today.
vapourised and contains 14.29% by mass hydrogen. The A. indoctrinate B. usher C. convert D. initiate
formula of the hydrocarbon is A.CH4 B.C2H2 C.C2H4 D. 15. Obi is noted for his .......... attitude to his seniors at school. A.
C2H6 E.C3H8 [C=12,H=1] receptive B. respectful C. respective D. respectable
3.
3
The pressure on 100cm of oxygen gas at 35°c is 750mm of 16. The girl that my brother introduced to us last week is pretty
Hg. What would be the volume of the gas if the pressure is ………. ill-mannered A. and B. but also C. as well as D.
increased to 1000mm of Hg without changing the respectable
3 3 3 3
temperature. A. 133.3cm 8.85cm C. 75cm D. 65cm 17. The police report was .......... to that of the eye witness. A.
3 contrary B. inconsistent C. different D. congruent
E. 58cm
4. Which of the following bonds exist in crystalline ammonium 18. The African extended family system gives security to ……….
chloride (NH4CI)? A. ionic and covalent B. ionic and co- members. A. his B. her C. its D. their
ordinate C. ionic, covalent and co-ordinate D. covalent, co- 19. I know I .......... read more but lam tired A. may B. ought to
ordinate and metallic E. ionic, covalent and metallic C. would D. could
5. Which of the following is a neutralization reaction? 20. Insects can become .......... to insecticides A. immunized
Addition of A. nitric acid to hydrochloric acid S. nitric acid to B. resistant C. Reticent D. immobilized
sulphuric acid C. acid to distilled water D. nitric acid to
sodium hydroxide E. sodium chloride to distilled water PHYSICS
6. In the preparation of carbon monoxide by heating 21. Which of the following is a scalar quantity? A. momentum
ethanedoic acid with concentrated sulphuric acid, the B. acceleration C. displacement D. distance E. force
concentrated sulphuric acid acts as A. oxidizing agent B. 22. What change in velocity would produce a body of mass
reducing agent C. dehydrating agent D. reaction medium 4kg if a constant force of 16N acts on it for 2s? A. 0.5m/s
E. catalyst B.2.0m/s C. 8.Om/s D. 32.0 m/s E. 128.0 m/s
7. How many grammes of methyl acetylene (propane) 23. A body accelerates uniformly from rest at the rate of 3m/s2 for
CH3-C=CH will completely discharge the colour of 8g of 8s. calculate the distance covered by the bodyduringthe
bromine?(Br=80,C=12,H=1) A.0.5 B.1.0 C.2.0 D.3.0 E.4.0 acceleration. A. 12m B.24m C.48m D.72m E.96m
8. Brass is an alloy containing copper and A. zinc B. tin 24. Which of the following has the same unit as the moment of
C. aluminum D. silver E. lead a force? A. force B. power C. Work D. momentum E. charge
3 3 25. Which of the following will reduce the frequency of
9. 60cm of hydrogen are sparked with 20cm of oxygen at
100°c and I atmosphere. The total volume of the residual oscillation of a simple pendulum? A. increasing the mass
3 3 3 3 3
gases is A.60cm B. 10cm C.40cm D.30cm E.70cm of the bob B. decreasing the mass f the bob C. increasing
10. If the rate of diffusion of oxygen gas is taken as 1, what the length of the string D. decreasing the length of the
will be the rate of diffusion of methane whose relative string E. increasing the amplitude of oscillation
molar mass is 16? A. 2.0 B. 1.8 C. 1.4 D.1.0 E. 0.5 26. A barometercan be used in determining the length of a i.
mountain ii. Depth of a mine iii. Dew point. Which of the
GENERAL PAPERS following is/are correct? A. I, H, iii B. H and iii only C. land
In each of questions 11 to 20, choose the word(s) or phrase(s) iii only D. land ii only E. iii only
which best fill(s) the gap(s) 27. Which of the following colours of surfaces will radiate heat
11. The sea wave continue to .......... the cliff on the west energy best? A. red B. white C. black D. yellow E. blue
coast constantly A. impair B. rub C. knock D. erode 28. Agas which obeys Charles law exactly has a volume of
12. The college bus was traveling at a high .......... when the 3 3
283cm at 10°C, what is its volume at 30°c? A. 1 42cm
accident occurred A. velocity B. acceleration C. rapidity 3 3 3 3
B. 293cm C. 303cm D. 566cm E. 849cm

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29. A real image of an object formed by a converging lens of BIOLOGY

focal length 15cm is 3times the size of the object. What 41. Which of the following organelles is used for locomotion
is the distance of the object from the lens? A.30cm in paramecium? A. pseudopodium B. irichocyst C. cilium
8.25cm C.20cm D. 15cm E. 10cm D. pellicle E. contractile vacuole
30. How far from a cliff should a boy stand to hear the echo 42. Which of the following is not true of the nucleus of a living
of his clap 0.9s later? (speed of sound in air = 330m/s) A. cell? It contains A. Chromosomes B. nucleus C. nucleoplasm
36.67m B. 74.25m C. 148.5Dm D. 297.00m E. 366.67m D. chromatids E. ribosomes
43. The cell membranes consists of A. carbohydrates and lipids
MATHEMATICS B. vitamins and proteins C. lipids and proteins D. water and
31. Find n if 34n=100112 A.5 B.6 C.7 D.8 sugar E. starch and cellulose
32. The radius of a circle is given as 5cm subject to an error 44. Which of the following is not likely to be found in the cell
of 0.1cm. What is the percentage error in the area of the of a ripe tomato fruit? A. plastids B. chlorophyll C. cellulose
circle? A.1/25 B. ¼ C.4 D.25 cell wall D. mitochondrion E. mineral salts
2x 3x
33. What is the value of x satisfying the equation 4 /4 = 2 A. 45. Osmosis can be defined as diffusion of........... A. atoms and
- 2B.-½C.½D.2 molecules through a membrane to an area of higher
2 2 concentration B. water molecules for a dilute solution to a
34. Lf x=3 -v3,find x +36/x A.9 B.18 C.24 D.27
35. Solve the equation y - 11y + 24 = 0 A. 8,3 B. 64,9 C. 6,4 D. concentrated solution across a permeable membrane C.
9,-8 water molecules from area of high concentration to an area
36. A man invested a sum of N280.00 partly at 5% and partly of low concentration D. water molecules from a dilute
at 4%. If the total interest is N12.80 per annum, find the solution to a concentrated solution through a semi-
amount invested at 5%. A. N14.00 B. N120.00 C. N140.00 permeable membrane E. perspiration and excretion
0. N160.00 46. The movement of diaphragm is a characteristics of gaseous
37. Ice forms on a refrigerator ice box at the rate of 4.06g per exchange in A. insect B. Fish C. toad D. mammal E. plants
minute after 1 minute. If initially there were 2g of ice, find 47. In cellular respiration, energy is stored in the form of A.
the mass of ice formed in 5 minutes A. 19.5 B.17.0 C.14.5 adenosine di-phosphate (ADP) B. adenosine mono-
D.12.5 phosphate (AMP) C. adenosine tri-phosphate (ATP) D. heat
3 energy E. electrical energy
38. Obtain a maximum value of the function f(x) = x - 12x +
11 A. -5 B. -2 C.2 D.27 48. The medium in which dissolved nutrient are transported in
39. Two perfect dice were thrown together. Determine the the body of vertebrates is called A. latex B. urine C. cell sap
probability of obtaining a total score of 8. A.1/12 B. 5/36 D. blood E. haemoglobin
C. 1/6 D. 7/36 49. Which of the following structures of the leaf contains air? A.
40. The probability of an event P is ¾ while that of another guard cell B. palisade layer C. intercellular space D. vascular
event Q is 1/6 If the probability of both P and Q is 1/12, bundle E. upper epidermis
what is the probability of either P or Q? A. 1/96 B. 1/8 50. Which of the following organs is specially adapted for
C. 5/6 D. 11/12 gaseous exchange in aquatic organisms? A. lungs B. trachea
C. gills D. tracheoles E. Alveoli
SOLUTION TO POLAC APTITUDE TEST 2018 EXAM
1.D 2.* 3.C 4.C 5.D 6.C 7.C 8.A 9.E 10.D
11.D 12.D 13. A 14.D 15.D 16.B 17.A 18.C 19.B 20B
21.C 22.C 23.E 24.C 25.C 26.E 27.C 28.C 29.A 30.C
31.A 32.A 33.B 34.C 35.A 36.D 37.D 38.D 39.B 40. C
41.C 42.D 43.C 44.B 45.D 46.D 47.C 48.D 49.C 50.C

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2017
TH
THURSDAY, 29 JULY 2017 TIME: 35 MIN

1. Shadows and eclipses result from the [A] refraction of light and refraction.
[B] rectilinear propagation of light [C] diffraction of light 4. What must be the distance between an object and a
[D] reflection of light. converging lens of focal length 20cm to produce an erect
2. An object, which is 3cm high is placed vertically 10cm in image two times the object height? [A] 20cm [B] 15cm [C]
front of a concave mirror If this object produces an image 10cm [D] 5cm.
40cm from the mirror, the height of the image is [A] 5. For a shortsighted person, light ray from a point on a very
0.75cm [B]4.00cm [C] 8.00cm [D] 12.00cm distant object is focused. [A] in front of the retina [B] on
3. A boy looks at the image of an object in a plane mirror He the retina by a converging lens [C] behind the retina by a
observes two images, a main bright one and the other faint. diverging lens [D] in front of the retina at a distant of 2F
The observed images result from [A] reflection only [B] from the lens.
refraction only [C] diffraction and interference [D] reflection 6. When light is incident on an object, which is magenta in

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color, which of the following colors would be absorbed? [A] 24. The difference between the length and width of a rectangle
red and blue [B] green only [C] red and green [D] red only. 2
is 6cm and the area is 135cm . What is the length?
7. In a resonance tube experiment, the effective length of [A] 25cm [BI 18cm [Cl 15cm [D] 24cm [E] 27cm.
the air column for the first resonance is 20cm when set 25. The first term of an Arithmetic Progression is 3 and the fifth
into vibration by a tuning fork of frequency 480Hz. term is 9. Find the number of the terms in the progression
Neglecting end effect, the velocity of sound in air is [A] if the sum is 81. [Al 12 [B] 27 [C] 9 [D] 4 [E] 36.
96m/s [B] 255m/s [C] 340m/s [D] 384m/s, 5/ 1/
26. The difference between 4 7 and 2 4 greater than the sum
of 1/ and 11/ [A] 23/28 [B]24/28 [C] 50/56 [D]27/28
8. A sonometer wire of length 100cm under a tension of 1ON, 14 2

has a frequency of 250Hz. Keeping the length of the wire [E]48/56.

constant, the tension is adjusted to produce a new 2 2 4 4 2 4 2
27. Multiply + +1 by - +1 .[A] +32-’--’-l [B] -t- -f1 [C] +4 -
frequency of 350Hz. The new tension is [A] 5.1 N [B] 7.1 N 4 2 4 3-2
6-’-l [D] -6 -4+1 [E] - - +1
[Cl 14.ON [E] 1 9.6N. 28. A baking recipe calls for 2.5 kg of sugar and 4.5 kg flour with
9. One of the properties of the earth’s magnetic field is that this recipe some cakes were baked using 24.5 kg of a
the [A] north pole lies in the northern hemisphere [B] mixture of sugar and flour how much sugar was used? [A]
geographic and magnetic meridians coincide [CJ earth’s 12.25 g [B] 6.5 kg [C] 8.75 kg [D] 15.75kg [E] 8.25 kg.
magnetic flux is entirely horizontal at a place where the 29. The sum of the root of a quadratic is 5/2 and then product of
magnetic dip is zero [D] earth’s magnetic flux is entirely 2
its root is 4, the quadratic equation is [A]2 +5+8=0
vertical at a place where the magnetic dip is zero. 2 2 2 2
[B]2 -5+8=0 [C]2 -8+5=0 [D]2 +8-5=0 [E]2 -s+8=o.
10. Three cells each of e.m.f 1.5V and an internal resistance of 2
30. Solve the given equation (log 3) - 6log 3+ 9 = 0 [A] 27 [B] 9
1
1.0 are connected in parallel across a load of resistance [C] / 27 [D] 18 [E] 81.
2.67. Calculate the current in the load [A] 0.26A [B] 0.41A [Cl 31. In which order are the following salts sensitive to light? [A]
0.50A[D]0.79A. AgI AgCI AgBr [B] AgCI AgI AgBr [C] AgBr AgCl Agl [D]AgCl
11. A government spokesman announced that efforts .......... AgBr AgI.
3
the release of the hostages are continuing [A] to obtain [B] 32. The pOH of a solution of 0.25 mol dm of hydrochloric acid is
in obtaining [C] for obtaining [D] of obtaining. [A] 12.40 [B] 13.40 [C] 14.40 [D] 14.60.
- 2+
12. I know you think lam talking nonsense, Shehu, but ………. 33. MnO 4 + 8H (aq) Z Y Mn (aq) + 4H 20(l)Y in the
- - - -
you’ll realize that I was right [A] at one time [B] on time equation represents [A] 2e [B] 3e [C] 5e [D] 7e
[C] in time [D] at times. 34. Given that M is the mass of substance deposited in an
13. The inspector of Education who made several trips on the electrolysis and Q the quantity consumed, then Faraday’s
bad road returned yesterday completely .......... by fever [A] law can be written as [A] Z/Q [B] Q/Z [C] Z/2Q [D] M = QZ.
brought down [B] put down [C] worn down [D] worn off. 35. 0.46g of ethanol when burned raised the temperature of
14. The vice principal asked the students to always ........... their 50g of water by 14.3K. Calculate the heat of combustion of
answers only from the textbooks recommended for the -1 -1
ethanol. [A] +33000KJ mol [B] +300KJ mol [C]
course [A] look out [B] search out [C] look up [D] bring up. -1 -1
300KJ mol [D] 300KJ mol C=12, 0=16, H=1 ,Specific
15. I know that your friend will not accept the proposal, ………. heat capacity of water=4.2Jg K
[A] and you neither [B] and neither you [C] neither do you 36. Powdered marble reacts faster with hydrochloric acid
[D] neither will you. solution than the granular form because the powdered
16. Mark is a very handsome fellow who informs me that he has form has [A] more molecules [B] more atoms [C] larger
………. for pretty girls [A] a heart[B] a lip [C] an eye [D] surface area [D] relatively large mass.
a check. 37. For a reaction in equilibrium, the species involved in the
17. WaleAgun, in creating his characters, draws equilibrium constant expression are [A] gaseous and
freely ...........his experience in life [A]by [B]in [C]on [D] of. solid species [B] liquid and solid species [C] solid and
18. When I have an appointment with someone, I hate ………. dissolved species [D] gaseous and dissolved species.
waiting [A] to be keeping [B] for being kept [C] being kept 38. A phenomenon where an element exists in different forms in
[D] in being kept. the same physical state is known as [A] isomerism [B]
19. It’s no good .......... about the result until you have sat for amorphism [C] allotropy [D] isotropy.
the examination [A] to worry [B] for worrying [C] worrying 39. The substance often used for vulcanization of rubber is
[D] to have worried. [A] chlorine [B] hydrogen peroxide [C] sulphur [D]
20. If you don’t want to .......... your car to robbers, then tetraoxosulphate (VI) acid.
don’t travel in the night [A] loose [B] loss [C] lose [D] lost. 40. A gas that is not associated with global warming is [A] CO 2
21. The number 25 when converted from the tens and units [B] SO2 [C] CH4 [D] H2.
base to the binary base (base two) is oneofthefollowing. 41. Which of the following structures is capable of producing
[A]10011 [B]111011 [C]111000 [D]11001 [E]110011. more tissues in the stem of a herbaceous flowering plant?
5 3 [A] Epidermis [B] pericycle [C] xylem [D] cambium.
22. Evaluate (6.3 x 10 ) /(81 x10 ) to 3 significant figures [A]
77.80 [B] 778.0 [C] 7.870 [D] 8.770 [El 88.70. 42. The manufacture of carbohydrates by plants takes place only
2 in [A] the leaves [B]the green stems [C] chlorophyll us parts
23. The positive root of t in the following equation, 4t + 7t -1 =
0, correct to 4 places of decimal, is [A]1.0622 [B]10.6225 [D] Flowering plants.
[C]O.1328 [D]0.3218 [E]2.0132. 43. In water culture experiment, a plant showed poor growth

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and yellowing of the leaves. These may be due to deficiency 47. The heart of the adult frog consists of [A] two auricles and two
of [A] copper [B] iron [C] magnesium [D] calcium. ventricles [B] one auricle and one ventricle [C] two ventricles
44. In million’s test, when the reagent is added to a protein food and one auricle [D] one ventricle and two auricles.
item, a white precipitate is produced which turns [A] blue on 48. In adult mammalian blood, the cells, which lack nuclei,
heating [B] yellow oh heating [C] green on heating [D] red are the [A] erythrocytes [B] lymphocytes [C] leucocytes
on heating. [D] phagocytes.
45. Regulation of blood sugar level takes place in the 49. Which of the following movements occur during exhalation?
[A] pancreas [B] ileum [C] liver [D] kidney. [A] the diaphragm and intercostals muscles relax [B] the
46. Unicellular organisms transport essential nutrients directly thoracic cavity increases in volume [C] the diaphragm and
to all parts of their bodies by the process of diffusion intercostals muscles contrast [D] the diaphragm contrast
because they have [A] a large volume to surface area ratio and the intercostals muscles relax.
[B] a large surface area to volume ratio [C] their bodies 50. In which of the following groups of animals is the Malphigian
immersed in the nutrients [D] their outer membrane made tubule found? [A] lizards, snakes and frogs [B] crickets,
of cellulose. houseflies and grasshoppers [C] millipedes, centipedes and
scorpions [D] earthworms, roundworms, and flatworms.

SOLUTION TO POLAC APTITUDE TEST 2017 EXAM

1.B 2.D 3.A 4.* 5.A 6.B 7.D 8.E 9.C 10.B
11.A 12.C 13. C 14.C 15.D 16.B 17.A 18.C 19.C 20A
21.D 22.* 23.C 24.C 25.C 26.E 27.B 28.C 29.B 30.A
31.D 32.C 33.C 34.D 35.A 36.C 37.D 38.D 39.C 40. D
41. 42.A 43.C 44.D 45.D 46.B 47.C 48.D 49.A 50.B

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2016
Sat. 4th July, 2016 TIME: 1Hour

1. Which of the following is not an example of a force? for a while and then decreases (B) decreases for a while
(A) tension (B) Weight (C) friction (D)mass (E)thrust and then increases (C) increases gradually (D) decreases
2. A body moves along a circular path with uniform angular gradually (E) remains the same
speed of 0.6 rad s and at a constant speed of 3.0m1 10. The expansion of solids can be considered a disadvantage in
calculate the acceleration of the body towards the centre the (A) fire alarm system (B) thermostat (C) riveting of steel
of the circle (A) 25.0m/s (B) 5.4m/s (C) 5.Om/s (D) 1 .8m/s plates (D) balance wheel of a watch (E) fitting of wheels on
(E) 0.2m/s rims
3. Which of the following is a derived unit? (A) Ampere 11. A solid metal cube of side 10cm is heated from 10c to 60c. If
(B) Kilogram (C) second (D)Ohm (E)Kelvin -5 -1
the linear expansivity of the metal is 1.2x10 k , Calculate
3 3 3
4. A boy timed 20 oscillations of certain pendulum three the increase in its volume (A) 0.6cm (B)1.2cm (C) 1.8cm
3 3
times and obtained 44.3s, 45.5s and 45.7s respectively. (D) 3.6cm (E) 6.0cm
Calculate the mean period of oscillations of the pendulum 12. A gas has a volume of 546cm3 at Oc. What is the volume of
(A) 0.13s (B)2.22s (C) 2.26s (D) 44.30s (E)45.17s the gas at 100°c if its pressure remains constant?
3 3 3 3 3
5. A particle starts from rest and moves with a constant (A)346cm (B)446cm (C) 546cm (D)646cm (E) 6.0cm
acceleration of 0.5mIs, Calculate the time by the particle to 13. An image which cannot be formed on a screen is said to be
cover a distance of 25m (A) 2.5s (B) 7.1s (C) 10.0s (D) 50.0s (A) invented (B) real (C) erect (D) blurred
(E) 100.0s 14. Longitudinal waves cannot be (A) diffracted (B) refracted
6.
3
A block of material of volume 2 xIO-5m and density 2.5 (C) polarized t (D) reflected (E) superposed
3 -3
xl0 kgm is suspended from a spring balance with half the 15. The images formed by a diverging lens are always (A)
volume of the block immersed in water. What is the reading diminish, virtual and inverted (B) diminished, virtual and
3 -3
of the spring balance? (Density of water = 1 .Ox 10 kg , g = erect (D) magnified, virtual and erect (E) magnified, real
2
10m/s ). (A) 0.1 ON (B) 0.10N (C) 0.30N (D) 0.40N (E) 0.50N and inverted
-1 16. In the normal use of a simple microscope, a person sees an
7. An object is projected with a velocity of 100ms from the
ground level at an angle? to the vertical. If the total time (A) inverted, virtual and magnified image (B) erect, virtual
of flight of the projectile is los, calculate? (g 1 0ms1) (A)0 and magnified image (C) erect, real and magnified image
(B)30 (C)45 (D)60 (E)90 (D) magnified, real and magnified image (E) inverted and
8. How far will a body move in 4 seconds if uniform accelerate real image the same as the object
2 17. A lens of focal length 15.0cm forms an upright image four
from rest at rate of 2m/s ? (A)32m (B)24m (C)16m (D)12m
(E) 8m times the size of an object. Calculate the distance of the
9. If the temperature of water is gradually increased from 0 to image from the lens (A) 11.3cm (B) 18.8cm (C) 37.5cm
40C, the density of the water within this range (A) Increase (D) 45.0cm (E)75.0cm

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18. An object is placed between two mirrors four which are 40. The bearing of a point X from Y is 074. What is the bearing
inclined at an angle of 120 and facing each other Determine of Y from X? (A)106 (B)148 (C)164 (D)254 (E)286
the number of images observed in two mirrors (A) 1 (B) 2 41. The nucleus is considered the central organelle of a cell
(C) 3 (D) 4 (E)5 because it (A) contains the genetic material (B) contains
19. In a ripple tank experiment, a vibrating plate is used to the nuclear sap (C) is bounded by the nuclear membrane
generate ripples in the water If the distance between two (U) is located at the centre of the cell
successive troughs in 3.5cm and the Wave travels a distance of 42. In prokaryotic cell type is characterized by (A) complex
31.5cm in 1.5s, calculate the frequency of the of the vibrator cytoplasm in which different regions ire poorly defined (B)
(A) 30Hz (B)6.OHz (C)12.0Hz (D)27.OHz (E)73.5Hz localization of different regions of the cell into tissues (C)
20. Which of the following have the longest wave lengths? (A) collection of organelles and macromolecular complexes (D)
infra-red rays (B) gamma rays (C) x rays (D) ultra violet rays simple cytoplasm with well defined regions
(E) radio waves 43. The natural tendency of organism as they evolve is to
-1/3 -1/2
21. SimpIify12.5 x 49 (A)350 (B)35 (C)1/35 (D)1/350 (E)0 (A) decrease in size (B) increase in (C) develop
2x specialized structures (D) feed indiscriminately
22. 1f 3 =2, what is x? (A)1 (B)1.5 (C)4.5 (D) 18 (E)40.5
-3 -2
23. Express 0.00562 in standard form (A) 5.62x10 (B) 5.62x 10 44. In snails, the hard calcareous shells are secreted by the
-2 2 3 (A) radius (B) tenidium (C) pneumostome (D) mantle
(C) 5.62x10 (D) 5.62x10 (E) 5.62x10
24. Given that 1/3 log10P=1,find the value of P. (A)1/10 (B0 3 (C) 45. The ability of the cockroach to live in cracks and crevices
10 (D)100 (E)1000 is enhanced by the possession of (A) wings and
1 1 segmented body (B) compound eyes (C) claws on the legs
25. Simplify: logv8(log8). (A) / 3(B) ½ (C) / logv23 (D) 3 logv2
26. If log x = 2.3675 and log y = 0.9750, find x +y, correct to (0) dorsa-ventrally flattened body
three significant figures? (A)1.18 (B)9.31 (C)9.03 46. The caste of termites that lacks pigmentation is the (A) king
(D)9.44 (E)9.46 (B) worker (C) soldier (D) queen
27. While doing his physics practical, Idowu recorded a reading as 47. The structures that prevent food particles from
1.12cm instead of 1.21 cm. Calculate his percentage error escaping through the fish gill (A) arches (B) filaments (C)
(A) 1.17% (B) 6.38% (C) 7.44% (D) 8.05% (E) 9.00% rakers (D)lamellae
28. Find the 4th term of an A.P whose first term is 2 and the 48. A distinguishing feature of mammals is the possession of
common difference is 0.5 (A)0.5 (B)2.5 (C)3.5 (D)4 (E)4.5 (A) skin (B) scale (C) nail (D) hair
29. An arc of length 22cm subtends an angle of? at the centre of 49. Which of the following structures is capable of producing
the circle. What is the value of? if the radius of the circle is more tissues in the stem of a herbaceous flowering plant?
15cm? (Take π=22/7) (A) 70 (B) 84 (C) 96 (D)156 (E)168 (A) epidermis (B) pericycle (C) xylem (D) cambium
30. Find the sum of the first five terms of the GP 2,6,18. (A) 484 50. The manufacture of carbohydrates by plants takes place only
(B) 243 (C) 242 (D)130 (E)121 in (A) the leaves (B) the green stems (C) chlorophyllous parts
2
31. Let J be the set of positive integer If H = (x: J, x <3 and x # 0) (E) flowering plants
then, (A) H(1) (B) H is an infinite set (C) S H(o,1 ,2) (D) H = () 51. In a water culture experiment, a plant showed poor growth
(E) J<H and yellowing of the leaves. These may be due to deficiency
32. In a class of 80 student had to study Economics or Geography, of (A) copper (B) iron (C) magnesium (D) calcium
or both Economics and Geography. If 64 students studies 52. In million’s test, when the reagent is added to a protein food
Economics and 50 studied Geography, how many studied both item, a white precipitate is produced which turns (A) blue on
subjects? (A) 15 (B)30 (C)35 (D)45 (E)50 heating (B) yellow on heating (C) green on heating (D) red on
2
33. Factorize x +4x -192 (A) (x -4) (x+48) (B) (e+1) (C) (x -12) heating
(U) (x -12) (E) (x+1 6) 53. Regulation of blood sugar level takes place in the
2
34. Factorize 2e -3e + 1 (A) (2e-1)(e-I) (B)(e+1)(2e (A) pancrease (B) ileum (C) liver (D) kidney
+1) (C)(2e+3)(3-2) (D)(2e-3)(e-1) (E) (e2-3) (2e-1) 54. Unicellular organism transport essential nutrients directly to all
2 parts of their bodies by the process of diffusion because they
35. Solve the equation 7y = 3y. (A) y = 3 or 7 (B)y = 0 or 7 (C) y
= 0 or 9 (E) y = 0 or 10 have (A) a large volume to surface area ratio (B) a large surface
2
36. Solve the equation 2a -3a-27=0 (A)3/2,9 (B)-2/3,9 (C)3,9/2 area to volume ratio (C) their bodies immersed in the nutrients
(D)-3,-9/2 (E)-3,9/2 (D) their outer membrane made of cellulose
37. A sector of a circle of radius 7cm has an area of 44cm2. 55. The heart of the adult frog consists of (A) two auricles and two
Calculate the angle of the sector, correct to the ventricles (B) one auricle and one ventricles (C)two ventricles
nearest degree.(A)6 (B)26 (C)52 (D)103 (E)206 and one auricle (D) one ventricle and two auricles
38. If the shadow of a pole 7m high is 1/2 its length, what is 56. In adult mammalian blood, the cells which lack nuclei are the
the angle of elevation of the sun, correct to the nearest (A) erythrocytes (B)lymphocytes (C) leucocytes
degree?(A)90 (B)63 (C)60 (D)26 (E)0 (0) phagocytes
39. From the top of a building 1 0m high, the angle of 57. Which of the following movements occur during exhalation?
depression of a stone lying on the horizontal ground is 69. (A) the diaphragm and intercostals muscles relax (B) the
Calculate, correct to I decimal point the distance of the thoracic cavity increases in volume (C) the diaphragm and
stone from the foot of the building (A)3.6m (B)3.8m intercostals muscles contrast (D) the diaphragm contrasts
(C)6.0m (D)9.3m (E)26.1m and the intercostals muscles relax

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58. In which of the following groups of animals is the Malphigian crystallization (D) is efflorescent
tubule found? (A) lizards, snakes and.frogs (B) crickets, house 73. The effluent of an industrial plant used on electrolysis of
flies and grasshoppers (C) millipedes,, centipedes and scorpions concentrated brine, with a flowing mercury cathode may
(D) earthworms, roundworms and flatworms contain impurities like (A) oxygen (B) hydrogen (C) mercury
59. Which of the following is not a function of the mammalian (D) chloride (D) hydrogen chloride
3
74. The solubility in moles perdm of 20g of CuSO dissolved in
skeleton? (A) protection (B) respiration (C) transportation 4
(D) support 100g of water at 1 80C is (A) 0.13 (B) 0.25 (C) 1.25 (D) 2.00
60. The most reliable estimate of growth is by (Cu 63.5,S=32,0=16)
measuring changes in - (A) length (B)volume 75. Smoke consists of (A) solid particle dispersed in liquid (B)
(C)surfacearea (D)dryweight solid or liquid particles dispersed in gas (C) gas or liquid
61. Which of the following is nota physical change? (A) the particles dispersed in liquid (D) liquid particles dispersed in
bubbling of chlorine into water (B) the bubbling of chlorine liquid.
into a jar containing hydrogen (C) the dissolution of sodium 76. Na2C2O4 + CaCO2 CaCO2O4 + 2NaCl. Given a solution of 1 .9g
chloride in water (D)the passing of steam over heated iron. of sodium oxalate in 50g of water at room temperature,
62. In the reaction SnO2 + 2C ------- Sn + 2CO, the mass of coke calculate the minimum volume of 0.1M calcium chloride
containing 80% carbon required to reduce 0.302kg of pure required to produce maximum calcium
tin oxide is (A) 40kg (B) 0.20kg (C) 0.06kg (D)0.04kg. 2
oxalate using the above equation. (A) 1 .40x10 dm (B) 1.40x
(Sn=119.O=16,C=12) 2 3 2 3 2 3
10 dm (C) 1.40x10 dm (D) 1.40x10 cm
63. The Avogadro number of 24g of magnesium is the same as 77. 2.0g of a monobasic acid was made up to 250cm3 with distilled
that of (A) lg of hydrogen molecules (B) 16g oxygen water 25.00cm3 of this solution required 20.00cm3 of 1 M
molecules (C) I 2g of carbon molecules (0) 35.5g of NaOH solution for complete neutralization the molar mass Qf
chlorine molecules. the acid is (A) 200g (B)150g (C)100g (D)50g
64. A gas occupies a container of volume 146cm3 at 180°c +
78. What is the concentration of H ions in moles per dm3 of a
and 0.971 atom its volume in cm3 at STP (A)133 (B)146 -5 -5 -3
solution of pH4.398? (A)4.0 x 10 (B) 0.4x 10 (C) 4.Ox 10
(C)266 (D)292 (D) 0.4x 10
-3
3
65. The volume occupied by 1 .58g of a gas at STP is 500cm . 79. What volume of 11 .0M hydrochloric acid must be
What is the relative molecules mass of the gas? (A)28 distilled to obtain 1dm3 of 0.05M acid? (A) 4.54cm3
3 (B)5.65cm3 (C)6.76cm3 (D)7.87cm3
(B)32 (C)44 (D)71 (G.M.V.at S.T.P=22.40dm )
66. Equal volumes of CO,.SO2, NO2 and H2S were released into 80. . If 1 0.8g of silver is deposited in a silver coulometer connected
a room at the same point and time, Which of the following in series with a copper coulometer, the volume of oxygen
gives the order of diffusion of the gases to the opposite liberated is (A) 0.56dm3 (B) 5.60dm3 (C) 11.29dm3
comer of the room? (A) CO, SO2, NO2, H,S (B) S02, NO2, (D) 22.40dm3 (Ag =108; Cu =64; GMV at S.T.P. = 22.40dm3)
H=S, CO (C) CO, H2S, S02, NO2 (D) CO, H3S, NO2, SO (S =32,
C=1 2, 0= 16, N =14, H =1) Instruction: Choose the word opposite in meaning to
67. A basic ulate of the kinetic theory of gases is the molecules the underlined words.
of a gas move in straight lines between collisions. This 81. The young engineer is good at terminating other people’s
implies that (A) collisions are perfectly elastic (B) forces of projects but has not been capable of ---- any of his own.
repulsion exist (C) forces of repulsion and attraction are in (A) integrating (B) finishing (C) completing (D) initiating (E)
equilibrium (D) collisions are inelastic organizing
68. Which of the following terms indicates the number of 82. The manager who is expected to be given respect was treated
bonds that can be formed by an atom? (A) oxidation with ------- (A) dignity (8) scorn (C) shame (D) cruelty
number (B) valence (C) atomic number (D) electronegativity (E) disioyalty
69. X(g) X(g) The type of energy involved in the above 83. Those who had invitation cards were admitted to the party
transformation is (A) ionization energy (B) sublimation while those who had none were ------ (A) barred (B) repelled
energy (C) lattice energy (D) electron affinity (C) expelled (D) compelled (E) restricted
70. Chlorine, consisting of two isotopes of mass number 35 and 84. Nobody expects him to show -------- for his children but
37, has an atomic mass of 35.5. The relative abundance of the he certainly bestows too much affection on them (A) love
isotopes of mass number 37 is (A) 20 (B) 25 (C)50 (D)75 (B) concern (C) intimacy (D) devotion (E) hatred
71. 10.0dm3 of air containing H2S as an impurity was passed 85. The challenger was crude and inexperienced in contrast
through a solution of Pb(NO3)2 until all the H3S had reacted. to the champion who was --------- (A)great (B)exposed
The precipitate of PbS was found to weigh 5.02g.According (C)celebrated (D)refined (E)strong
to the equation, Pb(NO3)2 + H2S PbS+2HNO3 the
percentage by volume of hydrogen sulphide (A)50.2 From the words lettered A to E, choose the word that best
(B)47.0 (C)4.47 (Pb= 207, 5 = 32, GMVat S.T.P = 22.4dm3) completes each of the following sentences. –
72. A blue solid T., which weighed 5.0g was placed on a table. 86. The fisherman threw a stone into the river and this caused a
After 8 hours the resulting pink solid was found to weigh ---------- (A) sprinkle (B) sparkle (C) splash (D)spring (E)storm
5.5g it can be inferred that substance T (A) is deliquescent 87. The play was so interesting that the ---------- clapped for
(B) is hygroscopic (C) has some molecules of water of quite a long time at the end. (A)spectators (B)watchers

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(C)congregation (D)people (E)audience 94. He was reluctant to grant my request (A) disposed
88. The building ----------- because of weak structural foundation. (B) delight (C) reticent (D)unwilling (E) agreeable
(A) tumbled (B) succumbed (C)somersaulted (D) collapsed 95. The detective was perplexed when the clues in the
(E) caved murder case pointed to at least a dozen different suspects
89. The magazine was ---------- by the government for an (A) surprised (B) confused (C) excited (D) discouraged (E)
offensive publication. (A) prescribed (B) proscribed disappointed
(C)suspended (D)condemned (E)persecuted 96. The Military Governor called for a concerted effort in solving
90. Many people reacted to the brutal murder of the popular the problems of the state. (A) a dramatic (B) an agitated (C)a
journalist with strong ------- (A) Indignation (B) demonstrate joint (D)a direct (E)an unfailing
(C) mobilization (D) condemnation (6) accusation 97. My financial situation is so precarious that very soon I may
be insolvent (A) borrowing (B)steeling (C)soluble
From the words or groups of words lettered A - E below each of (D)dependent (E)bankrupt
the following sentences, choose the word or group of words 98. The chairman is of the opinion that accepting the
that is nearest in meaning to the underlined word or group of proposal would be inimical to the objectives of the
words as used in the sentence. association. (A) harmful (B) relevant (C) irrelevant
91. It takes a great deal of stamina to run the marathon race. (D)indispensable (E)helpful
(A) courage (B) determine (C) energy (D) intelligence (E) 99. The famous politician was noted for his pragmatic approach
cleverness to national interest (A) idealistic (B) romantic (C)
92. But for the principal actor the play would have been dull. compromising (0) practical (E) inconsistent
(A) Important (B) head (C)master (D)famous (E)main 100. Kunle is very pessimistic about our chance of success (A) sad
93. An open car has no protection against the (B) despondent (C) unconvinced (D) worried (E) concerned
elements (A)weather (B) emergency (C)molecule
(D)atoms (E)atmosphere
SOLUTION TO POLAC APTITUDE TEST 2016 EXAM
1.D 2.D 3.B 4.C 5.C 6.B 7.B 8.E 9.C 10.C
11.E 12.A 13. C 14.C 15.C 16.B 17.D 18.D 19.* 20C
21.C 22.B 23.A 24.E 25.B 26.B 27.E 28.C 29.* 30.A
31.A 32.C 33.* 34.D 35.C 36.E 37.D 38.B 39.E 40. D
41.A 42.A 43.C 44.A 45.D 46.B 47.C 48.D 49.* 50.C
51.B 52.D 53.A 54.B 55.D 56.A 57.A 58.B 59.C 60.C
61.C 62.* 63.C 64.A 65.D 66.* 67A 68.B 69.* 70.B
71.C 72.B 73.C 74.C 75.B 76.* 77.* 78.A 79* 80*
81.D 82.B 83.A 84.E 85.D 86.C 87.E 88.D 89.B 90.A
91.C 92.E 93.A 94.D 95.B 96.C 97.E 98.A 99.D 100.B

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2015
PLEASE ENSURE THAT YOU HAVE SUBMITTED ONE DOWNLOADED
ONLINE REGISTRATION FORM BEFORE AND AFTER THE EXAMINATION
TIME: 1Hour 30 Mins.
Answer all questions
dy 2x
1. If y=(1-2x)3,findthevalue of /dxat x= -1 A. 57 B.27 C.-6 D.- 8. Given that ∛4 = 16, find x. A.2 B.3. C.4 D.6
54 9. Simplify 1/√(3+2) in the form of a+b√3 A. -2-13 B.-2+√3 C.

2-√3 D.√3

2. In how many ways can 6 colored chalks be arranged if 2 2

10. Find the derivation of (2+3x) (1 -x) with respect to x. A. 6x-1
are of the same colour? A. 60 8. 120 C.240 D.360 B. 1 -6x C. 6 D. 3
3. How many possible ways are there of seating seven 2
11. Find the derivative of the function of y = 2x (2x-1) at
people P, 0, R, S, T, U, V at a circular table? A.360 8.720 C. the point x = -1. A.-16 8-4 C.16 D.18
2520 D. 5040 12. Find the mean deviation of 1,2,3, and 4 A.1.0 B.2 C.3 D.4
4. What is the probability that an integer x, (1 < x < 20) 13. In how many ways can 2 students be selected from a group
chosen at random is divided by both 2 and 3? A. 1/20 B.1/3 of 5 students in a debating competition? A. 10 ways B. 15
C.3/20 D.7/10 ways C. 20 ways D.25 years
5. Find p,4516 - P7 = 3056 A.1177 B.1147 C.1167 D.1157 14. If the interest on N1 50.00 for 2 ½ yrs is N4.50. Find the
interest on N250.00 for 6month at the same rate. A.N1.50
B.N7.50 C.N15.00 D.N18.00
1
1
6. Find the sum to infinity of the series ½ + /6 + / 18 A. 1 B. 3/4
15. What are the integra 1 values of x which satisfy A. -2,1,0,-1
C. 2/3 D.1/3
7. y is inversely proportional to x and y = 4 when x= ½ . Find x
when y=10. A. 1/ B. 1/ C. 2 D. 10
10 5

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B.-1, 0, 1, 2 C. -1,0,1 D. 0,1,2 39. The pitch of sound note depend on A. timber B. Harmonics
16. If the 29th term of an AP is twice the third term and the C. Frequency D. Quality.
sum of the first four term is 42. Find the common 40. Satellite communication network makes use of A. Infra-red
difference. A.6 B.3 C.2 D.1 ray B. Sound wave C. Radio wave D. x-ray wave
17. Find the sum of the first 20 term of the series 8, 12,16 96 41. If two inductors of inductance 3H and 6H are arrange in
A. 1400 B.1500 C. 1040 D.960 series, the total inductance H is A. 18.0H B. 9.0H C. 2.0H
th D. 5.0H
18. Given the series 2,4,6 find the 4 term of the GP A.32 B.68
C.70 D.64 42. The charge carriers in gases are A. ions only B. electrons only
19. The sum of the interior angles of a regular polygon is C. electrons and ions D. protons only
1800. Calculate the size of the exterior angle of the 43. The mode of heat transfer that do not require a material
polygon. A.30° B.24° C. 15° 0.12° medium. A. conduction. 8. convection C. radiation D.
3 2 propagation
20. Find the remainder when 3x + 5x – 11x 4 is divided by x+3
A. 4B.1C.-1D.-4 44. The unit for energy is A. Joule B. Ampere C. Watts D.
21. The first and last term of an AP is 6 and 42. If the sum of Pascal
the Progression is 192, the number of the term in the AP is 45. The magnetic field is produce at what angle A.0° D.30°
A.6 8.7 C.8 0.5 C.180° D.90°
22.Lf sin α = ½ , tan α is A. 1/3 B. √3/2 C. ½ D. √1/3
46. The frequency of a stationary wave of 100Hz has a
23. The real number x which satisfy the inequality 1/3 (x±1 )-1 wavelength of 2m. Find the velocity of waves A, 500m/s B.
> 1/5(x+4). A. x<11 B. x = 1 C. x >1 D. x = 11 200m/s C. 300m/s D. 40m/s
2
24. If ß and α are the roots of 5x – x = 10, α + ß is A. ½ B.1/5 47. A battery of e.m.f 40V and internal resistance 5Ω is
C. 10D.2 connected to a resistance of 15Ω. Calculate the terminal
25. What is the 4th angle for the quadrilateral whose other potential difference A. 40V B. 20V C. 30V D. 75V
three angles are 580, 1170, 122°? A.30 B.60° C.63° 0.360°
48. A car moving round a circular racing track takes I 20s to do a
lap of 8km. what is the speed in km/h? A. 250km/h B.
PHYSICS
240km/h C. 300kni/h D.280km/h
26. In which of the following material would sound travel 49. Filament is commonly used at home because of its A. high
least. A. water B. oil C metal D. gas
freezing point B. low melting point C. low boiling point D.
27. Suppose the direction of the refracted ray is required for high melting point.
the light incident in air at 50°, n= 1.33. Find the angle of
o o
50. Secondary cells are better referred to as A. cell B.
refraction A. 45° B. 50 C. 70° D. 35 accumulator C. battery D. charger
28. The ability of the eye lens to focus point at different
distance on to the retina is A. Binocular B. Accommodation CHEMISTRY
C. Hypermetropia D. Colourization
51. When sodium react with water, the resulting solution is
29. When light is refracted which colour is the least A. weakly acidic B. neutral C. acidic D. alkaline
refracted? A.Red B.Blue C.Violet D.indigo
52. The gas that gives brown colouration in brown ring test
30. The frequency F of the fundamental note from is A.CO B.NO C. CO2 D.NO2
plucked wire
1 1 53. Which of the following polymer is suitable for
1 1
is given by A. / √ / B. / √1 / C. / √1 /
1 t
D. / √ /

4 m 2L m 2L m 2L m packaging electrical insulator? A. polystyrene B.

31. Suppose the potential difference of 2.4V at a current polyethylene C. polyamide D. polycarbonate
of 0.2A. Find the resistance A.14? B.12? C.16? D.20? 54. The boiling of fat and aqueous caustic soda is referred to as
2
32. Which is correct for dimension of acceleration A. MLT A. Acidification B. Hydrolysis C. Specification D.
3 2
B. LT C. LT D. LT Etherification
2
33. Suppose a car of mass 1000kg is accelerating at 2m/s 55. Hydrogen is released when dilute hydrochloric acid
then the force F acting on it is A. 20000N B. 2000N react with A. Ag B. Au C. Cu D. Na
C.40000N D.4500N 56. Which of the following chloride would exhibit the least
34. Which of the same quantities has same unit as Joules A. ionic character? A. LiCI B. MgCl2 C. CaCI2 D.AlCI2
Newton X Force B. Force X acceleration C. Newton X 57. When H2S is passed into a solution of iron (ii) chloride, the
meter D. Watt X Force solution turns A. Brown B. Palegreen C. Colourless D. Red
35. If the pile driver has a weight of 660N and is raised 2Om, 58. The property which makes alcohol soluble in water is the
then energy of stationary pile is A.13200J B.134003 A. cooling B. wetting C. covalent nature D. bonding
C.14200J D.15200J 59. Deliquescent substances are used for A. cooling B. boiling
36. The V.R is independent of A. Quality B. pulley C. C. drying D. melting
friction D.frequency 60. What mass of water is produced when 8.0g of
37. The process whereby the molecules of different hydrogen react with excess oxygen? - A.36.0g B.8.0g
substance move more randomly is called A. surface C.720g D.16.Og (H=1.0=16)
tension B. Capillarity C. diffusion D. osmosis 61. Cancerous are cured by exposure to A. y-ray B, a-ray C. P-
38. The process whereby a liquid spontaneously changes ray D. x-ray
into vapour is called A. evaporation B. regulation C. 62. An oxide XO2 has vapour density of 32. What is the atomic
boiling D. sublimation

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mass of X? A. 32 B.20 C. 14 D. 72. 82. Mr. Momoh .......... hard for many years before he got
63. Petroleum oil are separated by A. Crystallization B. promotion A. had been worked B. had been working C. has
Fractional Distillation C. Centrifugation D. Decantation. worked ft has been working.
64. How many moles of CaCO3 will be required to produce 83. lam sorry ………. to the meeting last night A. not come B. I
5.6g of CaO? (Ca 40, C= 12, 0 =16) A. 0.20mol B. 0.lmole C. didn’t come C. to come D. I hadn’t come
0.25mole D.0.40mole 84. John felt sorry .......... the poor people who hadn’t enough
65. The compound represented thus C2H2 is A. Alkane to eat A. for B. because C. of D. that
B. Ethyne C. Ethene D. Ethane 85. Mary’s was unable ………. the work in time A. she completed
66. The shape of d-orbital is A. Spherical B. orthogonal C. B. she couldn’t complete C. complete D. not to complete
polygonal D. dumbbell 86. Mr. Olayinka was delighted .......... A. you to come B. that
67. The general formular for the alkanone is A. R2CO B. ROH C. you come C. you not to come D. did you come
R’COOR 0. RCHO. 87. Food prices .......... a lot since last year. A. have gone up
68. Which of the following metal burns with a brick-red B. had gone up C. went up D. go up
flame A.Pb B.Ca C.Na D.Mg 88. The Romans once .......... most of Europe and North Africa for
69. A burning candle produces water and A. carbon (ii) oxide many years. A. have ruled B. had been ruling C. rule D. ruled
B. carbon (iv) oxide C. oxygen D. hydrogen 89. Eze has not heard anything of his sister Ada since she ……….
70. Proteins in acid solution undergo A. Polymerization to the United Kindom. A.has gone B. had gone C.had been
B. Substitution C. Fermentation D. hydrolysis going D. went
71. Ethanoic acid is A. Tribasic B. Unionizable C. 90. Everyone looked ………. to peter to give a lead A. to B. out C.
Monobasic D. Diabasic up D.at
72. What quantity will be deposited by a current of 2A at a 91. Everyone looked ………. Peter as their leader A. at B. on C.
time of 4s A. 9C B. 10G C.8C D.12C for D. up
73. Phosphorus is stored under water to prevent it from A. 92. Mary would never have finished her homework if Patrick
dehydrating B. becoming inert C. catching fire D. smelling hadn’t helped her .......... A. in B. with C. out D. off
14 93. John spent hours looking ......... his dictionary he couldn’t
74. What is the product of bombarding C 6nucleus with
neutron? A.
22
C B.
15
C C.
15
C D.
16
C
6 6 7 7
find it. A. at B. in C. for D. to
75. The element with the electronic configuration: 94. Everyone looked .......... to peter as a great leader A. up
2 2 8 2 2 B. down C. on D. for
1S 2S 2P 3S 3P ? A.C B. Si C. N D.C0
95. At the beginning of the period, the geography master fired
GENERAL PAPERS ………. a series of question about South EastAsia. A. up B. on
76. The principal was not aware .......... the visitors on their C. away D. off
arrival A. to have met B. that he should have met C. that
he met ID. to meet the visitors on their arrival From each numbered list choose the word or expression which
77. John was glad ...........A. were the exams over B. the will complete the corresponding sentence c9rrectly.
exams were over C. the exams to be over D. at the exams 96. The answer to this sum is wrong, you ........... a mistake
which over A. must make B. must have made C. can have made D.
78. Patrick was afraid ………. A. whether he had failed 8.to have may have, made
failed C.he has failed D. he had failed 97. “Hurry up, it’s time to go”. Surely, it A. can’t be B. must be
C. must’s be D. can be
79. Patrick was wrong ........... A. he contradicted the teacher
B. to contradict the teacher C. contradicted the teacher D. 98. A Bridget: I’ll have to go row Ada, Ada: surely you go yet
to be contradicted the teacher A. mustn’t B. need to C. don’t need to D. have got to
80. Doing snippets of work each day is not .......... anyone A. 99. When you are ready, you ........... go. A. may B. can’t C.
very satisfactory 8. really satisfactory to very C. really very ought not to D. would
satisfactory to D. very really satisfactory to 100. I wonder where Okeke is he .......... by now A. ought to arrive
B. ought to have arrived C. must arrive D. can’t have arrived
81. At last the aircraft was able to takeoff. It .......... for two
hours by a fault in the electrical system A. has been delayed
B. delayed C. had been delayed D. is delayed

SOLUTION TO POLAC APTITUDE TEST 2015 EXAM

1.C 2.D 3.A 4.C 5.C 6.B 7.B 8.B 9.C 10.A
11.C 12.A 13. A 14.A 15.D 16.B 17.C 18.* 19.A 20.B
21.C 22.C 23.C 24.B 25.C 26.B 27.D 28.B 29.C 30.D
31.B 32.C 33.B 34.C 35.A 36.C 37.C 38.A 39.C 40. C
41.C 42.B 43.B 44.A 45.D 46.B 47.C 48.B 49.D 50.B
51.D 52.D 53.A 54.C 55.A 56.D 57.D 58.* 59.C 60.A
61.D 62.A 63.D 64.B 65.B 66.D 67A 68.B 69.B 70.A
71.C 72.C 73.C 74.B 75.B 76.C 77.B 78.C 79B 80.C
81.B 82.C 83.B 84.A 85.C 86.B 87.C 88.D 89.D 90.C
91.B 92.C 93.C 94.A 95.B 96.B 97.C 98.C 99.A 100.B

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2014
TIME: 1HOUR

INSTRUCTIONS TO CANDIDATES: Please ensure that you have submitted one downloaded on-line registration form before and after the
examination. Calculators, cell phones and other electronics devices are not allowed. Any form of examination malpractice automatically
disqualifies the candidate. Candidates may use logarithm tables. Answer all questions TIME ALLOWED: 1 hr30mm

Shade the answer sheet as appropriate: with HB pencil only gravitational potential energy of the stone
13. Ball is thrown vertically upwards from the ground with an
PHYSICS initial velocity of 50m/s. What is the total time spent by the
1. The slope of a straight line displacement time graph indicates ball in air?(g=10m/s) A.2.5s B.5.0s C. 10.0s D. 15.0s E.20.0s
A. distance travelled B. uniform velocity C. uniform 14. Which of the following correctly gives the relationship
acceleration D. instant acceleration E. uniform speed. between linear speed V and angular speed w of a body
2. A ball of mass 0.5kg moving at 10m/s collides with another 2
moving uniformly in circle of radius? A. v= wr B v =w r
ball of equal mass at rest. If the two balls move off together 2 2
C. v=wr D. v = wr E. v=wr
after the impart, calculate their common velocity A. 0.2m/s 15. Which of the following is used to determine the relative
B. 0.5m/s C. 10m/s D. 3m/s density of the acid in a car battery? A. hypsometer B.
3. How much heat s given out when a piece of iron mass 50g and hygrometer C. manometer D. hydrometer E. spectrometer
specific heat capacity 460/kg/K cools from 85°c to 25°c? 3 3
16. A block of material volume 20cm and density 2.3g/cm is
6 2 4 3
A. 1.38 x 10 J B. 2.53 x 10 J C. 1.98 x 10 J D. 1.38 x 10 J suspended from a spring balance with half the volume of the
3
E. 1 .27x1 0 J block immersed in water What is the reading of the spring
4. Which of the following is not a suitable method of reducing loss balance? (Density of water = 1.0 g/cm3) A. 8g B. 25g. C. 30g
of heat from a piece of hot iron? A. wrapping it in cotton wool D. 40g E. 50g
B. painting it black C. placing it in a vacuum D. placing it in a 17. Apiece of cork which is floating on water is acted upon by the
rubber support E. keeping it in a closed wooden box forces of A. weight and viscosity B. weight and upthrust
5. A bat emits a sound wave at a speed of 1650.00m/s and C. upthrust and viscosity D. weight only E. upthrust only
receives the echoes 0.15s later. Calculate the distance of 18. Which of the following is derived unit? A. meter B. coulomb
the bat from the reflector A. 8.75m B. 16.6Cm C. 87.75m D. C. kilogram D. second E. ampere
123.75m E.330.OOm 19. An engine raises 100kg of water through a height of 60m in
6. Which of the following is/are characteristics of sound? i. 20s. What is the power of the engine? (g = I0m/s°) A.
pitch ii Loudness iii. Quality iv. Noise A. I only B. ii only C. I 120.00w B.3000.00w C. 333.00w D. 300.00w E. 30.00w
& ii only D. I, ii & iii only E. i, ii, iii and iv 20. If the temperature of a small quantity of water in a closed
7. An image which can be formed on a screen is said to be container is gradually increased from 0°c to 40°c then the
A. virtual B. blurred C. inverted D. erect E. real density of water within its range A. increases for a while and
8. A ray of light is incident at an angle of 30° on a glass prism then decreases B. decreases for awhile and then increases
of refractive index 1.5. Calculate the angle through which C. increases graduafly D. decreases gradually E. remains the
the ray is minimally deviated in the prism.(the medium same
surrounding the prism is air). A.10.5° B. 5. 5° C.21.1° D.38.9°
E.40.5° MATHEMATICS
-1/3 -12 1 1
9. At which of the following distances from the lens should 21. Simplify: 125 x4 x 10° A. 350 B. 35 C. /35 D. / 350 E. 0
a slide be placed in a slide greater than f but less than 2f 2x
22. If 3 = 27, what is x? A. 1 B.1.5 C.4.5 D. 18 E. 40.5
D. equal to f E. equal to 2f -3
23. Express 0.00562 in standard form. A. 5.62 X 10 B. 5.62
-2 -2 4 3
10. What of the camera corresponds to the iris of the eye? x 10 C. 0.562 x 10 D. 5.62 x 10 E. 5.62x 10
A. shutter B. film C. lens D. diaphragm E. focusing ring 24. Given that 1/3log10 P = 1, find the value of P A.3 B.
11. Which of the following is not a mechanical wave? A. 1/10 C.10 D.100 E.1000
25. Simplify √
(log 27)/
A. 1/6 B. 3/8 C.1/2 D.4 E.6
wave propagated in stretched ring B. waves in closed log81

26. The population of a village is 5846. Express this number to

pipes C. radio waves D. water waves E. sound waves
three significant figures A. 5850 B. 5846 C.5840 D.585
12. A catapult is used to project a stone. Which of the following E.584
energy conversions takes place as the stone is released? A. -1 1/2
27. Simplify ((1/4) ) A. 1/6 B.1 C. 2 D.4 E. 8
The kinetic energy of the stone is converted into 2
28. For what value of y is the expression (y + 2)/(y - Sy -10)
gravitational potential energy B. The gravitational potential undefined? A. y = 0 B. y = 2 C. y = 3 D. y = 5 E. y = 10
energy of the catapult is converted into the kinetic energy 29. Simplify log6 + log12 A.-4 B.-1 C.0 D.1 E.4
of the stone C. The elastic potential energy of the catapult is 2
30. Solve the equation 3a+ 10 = a A. a = 5 or a = 2 B. a = -5 or
converted into elastic potential energy D. The elastic
potential energy of the catapult is converted into the

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net
a = 2 C a=10 or a = 0 D. a = 5 or a = -2 E. a = -5 or a = -2 50. Using exponential notation, express the quantity 72.8mg in
2 -5 -3
31. Evaluate(101.2) - (100.5)° A. 1 B. 2.02 C.20.02 D. 141.19 terms of its basic S.I. unit A. 7.28 x 10 B.72.8 x 10 kg
E. 202 -3 -5
C. 7.28 x 10 g D. 7.28.x 10 kg
32. Express the product of 0.06 and 0.09 in standard form A. 51. A given mass at constant temperature occupies 5001 at
-3 -2 6 2 3 700mm pressure. What volume will it occupy at 200mm
5.4 x 10 B. 5.4 x 10 D. 5.4 x10 D. 5.4x10 E. 5.4x10
33. Simplify(36)
-1/2
x 5° A. 3/4 B. 1/24 C.2/3 D.11/2 E. 2029 pressure? A. 1750 B. 1875 C. 1645 D.5017
34. If cos(A)° = ½ which of the following angles has a cosine - 52. The expression P1 + P2 +
½ ? A.30° 8. 120° C. 150° D. 210° E.330°
35. A ladder 9m long leans against a vertical wail making an GENERAL PAPERS
angle of 64° with the horizontal ground. Calculate correctly 1. This is important ………. your last essay. A. on B. with C. by
the decimal place, how far the foot of the ladder is from D .for
the wall. A.4.0m B.5.8m C.7.1m D.8.1m E. 18cm 2. The team has suffered defeat ………. A. before B. with C.
36. Lf 3log a+5 log a-6 log a. What is a A.1 8. B. 6. C. 8 D. G. 16 over D. after
E. 32 3. Unemployment has been .......... the increase since last year.
37. If the second and fourth terms of a geometrical progression A. of B. at C. on D. in
are Band 32 respectively, what is the sum of the four 4. Cat sleep ………. Day and hunt at night A. at B. by C. in D.
terms? A.28 B.40 C.48 D.60 E.68 during
2 5. L don’t want anything to interfere ………. My project A. with
38. Factorize 35-2b-b A.(35-2b)(b-1) B.(7+b)(5-b) C.(3+7)(5-b) D.
(35-b)(3b+7) E. (7+b)(5tb) B. on C. over D. by
39. Evaluate 0.009 ÷ 0.012. Leaving your answer in standard

2 1 -1 -2
6. The two brothers came in ………. The backdoor A. within
form. A.7.4 x 10 B.7.5 x 10 C.7.5 x 10 D.7.5x10 E. B. along C. across D. through
3
7.5x10 7. the terms of agreement with your landlord, you
2
40. Factorize the following expression: 2x + x -15. A. (2x+5) should not sub-let the house. A. on B. under C. upon D. by
(y-3) B. (2x-5)(y+3) C. (2x-5)(x-3) D. (2x-3)(x+5) E. (2x+5) 8. Nigeria’s economy was buoyant ………. the 1970s A. through
(x+3)
Ban C. in D. with
9. The musician ………. waxed that record died fifty years ago A.
CHEMISTRY:
who B. whom C. which D. whose
41. Complete hydrogenation of oils results in the production of
10. The author .......... book you are reading now, won the
A. soaps B. detergent C. alkalines D. butter F. margarine.
Noble Price for literature last year A. which B. that C.
42. A sample of orange juice is suspected to have been whose D. whom
contaminated with a yellow dye. Which of the following 11. The lady .......... you were talking about yesterday is here now
methods can be used to detect the dye? A. decantation B. A. which B. whom C. who’s D. whose
Chromatography C. distillation D. filtration E. evaporation 12. The pencil .......... you gave me yesterday is lost. A. whose
43. The heat accompanying the reaction represented by the B. whom C. that D. who
equation H2O(g) is described as the heat of A. Solution B. 13. I honest don’t understand .......... you hate that man. A.
neutralization D. sublimation E. activation When B. Where C. why D. how
44. Which of the following compounds will undergo 14. I’d like to know……….., he’ll wriggle out of this ease A. how
addition reactions? A. ethyne B. butane C. pentane D. B. whenever C. where D. what
Tetrachioromethane E. ethanol
15. ………. of the two pencil is yours? A. where B. who C.
45. How many unpaired electrons are there in an atom which D. whose
whose atomic number is 8? A.0 B.1 C.2 D .3
16. ………. university is .......... Institution of higher learning.
46. A piece of metal object of mass 60 was analysed and found to A. An....an B. An ... a C. A……a D.A ....an
contain 20% by weight of magnesium. Calculate the number of 17. l’d give up smoking, if l ………. you, A. am B. were C. was D.
moles of magnesium present (Mg = 12) A 0.5mol are
B 1 mol C. 1 .5moI D. 2moI E. 2.5moI
18. It is high time you .......... visiting that friends of yours.
47. What is the maximum number of electrons that can A. should stop B. stopped C. stop D. must
be contained in the d-sub shell A.6 B. 8 C.10 D.12
19. ………. had they entered when it started to rain A. hardly
2-
48. What is the oxidation number of zinc in Zn(OH) 4 A.-2 B. nearly C. almost D. fairy
B.4 C.2 D.-1 E.-4
20. All your ………. like you very much. A. brother-in-law B.
49. Write the formular of the compound whose names is iron brother-in-laws C. brother-in-laws D. brothers-in-law
(ii) Tetraoxosulphate (vi) heptahydrate. A. Fe2SO4.7H20. B.
2FeSO4.7H20 C. FeSO4.7H20 D. FeSO4.(H20)7

SOLUTION TO POLAC APTITUDE TEST 2014 EXAM

1.C 2.C 3.D 4.A 5.D 6.D 7.E 8.B 9.C 10.D
11.C 12.C 13. C 14.A 15.B 16.E 17.C 18.B 19.B 20.D
21.C 22.B 23.A 24.E 25.B 26.C 27.C 28.D 29.D 30.D
31.D 32.A 33.* 34.B 35.C 36.C 37.D 38.B 39.C 40. B
41.E 42.B 43.C 44.A 45.C 46.B 47.C 48.C 49.C 50.D

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51.B 52.B
GENERAL PAPERS

1.D 2.D 3.C 4.B 5.B 6.B 7.D 8.C 9.C 10.B
11.A 12.C 13. B 14.A 15.C 16.C 17.B 18.B 19.A 20.C

POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS

TEST 2013
TIME: 11 ½ Hour

INSTRUCTIONS TO CANDIDATES
* Answer all question
* Affix 1 passport photograph to the answer sheet
* Write your registration number UME score & state of origin only on the answer sheet
* Calculators, cell phones and other electronics devices are not allowed.
* Any form of malpractice automatically disqualifies the candidate
* Ensure that you sign the attendance sheet before leaving the examination hall.

GENERAL PAPERS able to do it alone D. he has been able to do it alone E.

Fill the blank spaces making use of the best of the five options. he will do it alone
1. In the past his father used to walk but nowadays he .......... to 12. you can talk to her A. you are permitted to talk to her B.
work by bicycle A. giving B. is going C. seldomly goes D. goes you must talk to her C. you mustn’t talk to her D. nothing
E. has gone prevents you from talking to her E. A & D
2. ………. It might not look such a rosy proposition A. from 13. When you go to a foreign country to study, you will discover
his viewing proposal B. when he views the proposal C. that life is not always a bed of roses after it is A. as
having viewed the proposal D. from his paint of view E. pleasant as one thought B. a bed without roses C. an
from his seeing it unmitigated disappointment D. expected E.
3. Nuhu told me to go on ………. till seven A. to work B. uncomfortable
worked C. works D. working E. work 14. Ebun .......... the edge of the cliff after his shoes had called to
4. Don’t study on the examination day What find he tell you? grip A. fell down B. fell off C. fell away D. fell from
He told me ………. on the examination day A. no studying B 15. The host insisted on ………. what he called a little gift A. me
don’t study C. not study D. not to study E. to not study to accept B. me accepting C. my accepting D. my
5. I start writing this test at 8.00am. it is 1000am now by acceptance
11 .00 am I ………. it for three hours. A. shall be writing B. 16. I know you think lam talking nonsense, Shehu, but ...........
have been writing C. shall have been writing D. am writing you will realize that I was right A. at one time B. on time C. in
E. was writing time D. all times
6. I shall travel to Lagos by ………. next week A. air or with train 17. The driver will all the students interested to going to lagos
B. aircraft or by road C. airways or by bus D. air or by road tomorrow at 7.OOam outside the main building A. lift B. lift
E. flight or by bus up C. pick D. pick up
7. Musa asked Asmart what she ………. since he last saw her
A. has been doing B. had been doing C. has done D. was Choose the option similar in meaning to the underlined word(s)
doing E. might be doing 18. The government is making concerted efforts at providing
8. The evidence of all the accused person’s ........... by the essential social facilities in the rural areas A. dissipated B.
judge sitting at no. 2 assizes last week A. were disbelieved unconcerted C. unsuccessful D. uncontrolled
B. was disbelieved C. in disbelieved D. are disbelieved E. has 19. We cannot but talk about his invaluable contributions to the
been disbelieved. affaire of the society A. worthless B. cost C. unrecognized D.
incalculable
Choose the word or phrase from options A-E which has the same 20. Men living in an extended family know that they have to be
meaning to the underlined word or words in each sentence. responsible for the ware fare of some other person’s
9. The minister bit on a plan to lain his past after many months children A. externals B. nuclear C. neutral D. contracted
of lobbying A. beat a plan B. drew up a plan C. discovered a
plan D. selected a plan E. designed a plan
10. Ekwansi’s account with the naira bank is in the red, his CHEMISTRY
account A. was written in red ink B. is overdrawn C. is in 21. In the reaction between sodium hydroxide and sulphuric acid
danger D. is special E. is heavy solutions, what volume of 0.5molar sodium hydroxide
11. He should be able to do it alone A. he ought to be able to 3
would exactly neutralize 10cm of 1 .25molar sulphuric acid?
do it alone B. he may be able to do it alone C. he may 3 3 3 3
A. 5cm B. 10cm C. 20cm D. 25cm E. 50cm
3
be

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22. A small quantity of solid ammonium chloride (NH4CI) was achieves electronic configuration of argon D. it loses one
heated gently in a test tube. The solid gradually disappear to proton E. it loses one neutron.
produce a mixture of two gases later a white cloudy deposit 31. On heating under suitable conditions, 1 liter of a
was observed on the cooler part of the test tube. The monoatomic gas X combines with 1 .5litres of oxygen
ammonium chloride is said to have undergone A. forming an oxide. What is the formular of the oxide? A. XO
distillation B. sublimation C. precipitation D. B. X203 C. X302 D. X0, E. none of the above
evaporation E. decomposition 32. If 1 liter of 22M sulphuric acid is poured into a bucket
23. Elements P, Q, R, S have 6, 11, 15, & 17 electrons containing 10 liters of water, and the resulting solution
respectively. Therefore A. P will form an electrovalent 25cm3 of 0.1 M Na,CO, to neutralize it. What is the
bond with R B. Q will form a covalent bond with S C. R will original volume of the acid? A.2.2M B.1.1M C.O.22M D.0.1
form an electrovalent bond with S D. Q will form an IM E.0.20M
electrovalent bond with S E. Q will form a covalent bond 33. A solution of HCI contains 7.3gIdm3 of the acid. What
with R volume of it will neutralize 0.25M solution of Na2CO3 of
24. An element X forms the following compounds with chlorine: volume 20m1 A. 250m1 B. 5Oml C. 750m1 D. l0mI
NCI4, XCI3, XCI2. this illustrates the A. law of multiple E. 25ml
proportions B. law of chemical proportions C. law of simple 34. Which one of the following reactions is correct as written? A.
proportion D. law of conservation of mass E. law of definite FeC)2 + NH4OH Z Fe(OH)4 + NHCI B. Pb203 + 4HC1 Z PbC12
proportion. + 2H20 C. PbNO3 + H25 Z’ PbS + 2HN03 D. NaOH + H2S04 Z
25. The oxidation state of chlorine in potassium chlorate is A. NaHSO7+ H E.2NH4N03 Z N2÷2H,O
11 B. 12 C. 13 D. 15 E. 17 35. How many grams of hydrogen gas will be liberated when 6g of
26. When carbon dioxide is bubbled into limewater, a white 3
magnesium ribbon dissolves in 500cm of 6M HCI? (Mg =
precipitate is formed. If the passage of the gas is continued 24, H 1, Cl = 35.5). A. 2.2g B. O.7g C. 0.5g D. 0.3g
the precipitate disappears. The reasons for this is A. E. 12g
calcium carbonate is formed which on reaction dissolves B. 36. An example of a strong electrolyte is A. ethyl acetate B.
calcium hydrogen carbonate is precipitated and then ethanol C. glucose D. sodium. Formate E. formic acid
dissolves C. calcium carbonate is formed which on reaction 37. The oxidation state of manganese in KMnO4 is A. 44 B. 13 C.
with further carbon dioxide forms soluble calcium 15 D. 17 E. 12
hydrogen carbonate D. concentration of solution has 38. For iron to rust, these should be present A. oxygen B.
occurred with the deposition of calcium hydroxide E. the moisture C. carbondioxide D. oxygen and moisture E
solution has become saturated and solid carbon dioxide has oxygen, moisture and carbondioxide.
been deposited. 39. The mass number of an atom is A. the mass number
27. The following reactions are stages in important industrial of electrons in the atom B. the number of protons in
processes: (i) N2(9)+ 02 Z 2NH3(g AH is negative (ii) 2S02(9) + the nucleus of the atom.
°2 z 2SO3() AH is negative (ii) N2(9)+ 03)Z 2N0) AH is positive. 40. Sodium and potassium belong to the same group of the
Which of the above forward reactions is favoured? periodic table. This is because A. both have identical electronic
by (i) a decrease in the concentration of the pressure and (ii) configuration 2. both react with water vigorously.
an increase in temperature? A. i B.ii C.iii D.i & ii E: I
& iii
28. Methanoic acid mixes with water in all proportions and has 41. After getting an increase of 15%, a man’s new monthly salary is
about the same boiling point as water. Which of the following N345. How much per month did he earn before the increase?
methods would you adopt to obtain pure water from a mixture A. N330 8. 396.75 C. N300 0. N393.25 E. N360
of sand, water and methanoic acid A. fractional distillation B. 42. In base ten, the number 101101 (base2)equals A.
filtration followed by aestivation C. neutralities with sodium 2010 B.4510 C. 1510 D. 1310
hydroxide followed by distillation. D neutralization with sodium 43. The annual profits of a transport business were divided
hydroxide followed by filtration E. etherification with ethanol between the two partners A and B in the ratio 3:5. if B
followed by distillation. received N3000 more than A, the total profit was A.N5000
29. Which of the following statements applies during the B.N18000 C.N12000 D.N24000 E.N8000.
electrolysis of sodium hydroxide solution using platinum 44. A square of cardboard is taped at the perimeter by a place
electrodes? A. anions are discharge at the cathode B. of ribbon 20cm long. What is the area of the board? A.
hydrogen ions are discharge at the anode C. the 20sq.cm B. 25sq.cm C. 36sq,c m D. 100sq.cm E. 16sq.cm
concentration of sodium hydroxide decreases at both x-1 x+2 -5 x-2 3
45. Simplify A. 62 B. 5 C. 5 D. 5 E. 5
electrode compartments D. the concentration of sodium
46. The median of the set of numbers 4,94, 13,7,1410, 17 is A.
hydroxide increases at the cathode only E. the 10 30
13B.7C. / D.10 E /
concentration of sodium hydroxide increases at the anode 2 4

only. 47. List all integer values of x satisfying the inequality: 1 <2x-5=5
A. 2,3,4,5 B. 2,5 C.3,4,5 D. 2,3,4 E.3,1.
30. Which of the following statement is true? When the 2
potassium atom forms its ion A. it gains one electron and 48. Find the roots of the equation 10x -13x-3=0 A. x = 3/8 or-
1/2 B. x = 3/10 or -1 C.x = 3/10 or 1 D. -1/5 or 3/2
becomes neutral B. its atomic number decreases C. it
49. A solid cylinder of radius 3cm has a total surface area of

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net
2
366cm . find its height. A.2cm B.3cm C.4cm D.5c m E.8c m sound travels A. mainly through air B. fainter in stretched
√

50. lfSinx°=a/b, w hat I ssin(90-x)°? A. a/b B.1-a/b C.

√ √
& string C. faster through gasses than in solids and liquids D.
D. E. with greater ease through a string than in air E. none of
51. 7 pupils of average age 12years leave a class of 25 pupils of the above is correct.
2
average age 14years. If 6 new pupils of average age 11 68. The hatch door of a submarine has an area of 0.5m the
years join the class, what is the average age of the pupils 2
specific gravity of sea water is 1.03. Assume that g = 10m/s
now in the class? A.13years B. 12years¼months C. 13 years and neglect the atmospheric pressure. The force exerted by
5smonths D. 13years E. 11 years the sea water on the hatch door at a depth of 200m is A.
5 4 2 3 2
52. A sum of money invested at 5% per annum simple interest 1.03 x 10 N B. 1.03 x 10 Nm C. 2.6 x 10 Nm D. 2.06
11 3
amounts to $434.00 at 71/2% per annum simple interest? A. x 10 N E. 1.03x10 N.
7%years B. 10years C. 5years D. 12years E. 14years. 69. When equal weights of iron and water are subjected loan equal
53. By selling an article for N45.00 a man makes a profit of 8%. supply of heat, it is found that the piece of iron becomes much
For how much should he have sold it in order to make a hotter than water after a short time because
profit of 32%? A. N180.00 B. N59.00 C. N63.00 D. N58.00 A. The specific heat or iron is higher than water B. Iron is in
E. N55.00 solid form C. water is in liquid form D. the specific heat of
54. An isosceles triangle of sides 13cm, 13cm, 10cm is water is higher than that of iron E. the specific heat of iron
inscribed in a circle. What is the radius of the circle? is infinite.
8
A.71124cm B.12cm C. 5cm D.7cm E.69cm 70. The speed of light in air is 3.0 x 10 m/s. its speed in
8
55. A man bought a wrist watch for N150 but was only able glass having a refractive index of 1.65 is A.1 .82x 10 m/s
8 8 2
to sell it for N120. Find the loss per cent on the B. 3x 10 m/s C. 6.0 x 10 m/s D. 1.82 x 10 m/s
transaction A.25% B.11l/8% C.20% D.80% E.30% 71. An electric iron is rated at 100watts 250v. The corresponding
maximum resistance and accompanying current is A. 62.5Ω,
56. Find the median of the set of numbers
8
110,116,113,118,121,118,117,113. A.117.5 B.118 4.0321 B. 16.0Ω,6.251 C. 4.95 x10 rn/s D.4.0Ω, 62.51
C.117 D.116 E.113. E.4.0Ω, 2501.
57. Given a regular hexaon, calculate each interior angle of 72. 250g of lead at 170°c is dropped into 0°g of water at 10°c if
the hexagon. A. 600 B. 30° C. 120° D.45° E.135° the final temperature is 12°c, the specific heat of lead is
(specific heat capacity of water is 4,200/jkg°c) A. 39.5/jkg°c
58. Solve the following equations: 4x-3 = 3x+y 2y+ 5x-12;
A. x=5, y=2 B. x 2, y=5 C. x2,y=-5 D.x5,y3 B. 50.4/jkg°c C. 127.5/jkg°c 0. 154.6/jkg°c E. 173.4/jkg°c.
73. If the refractive index of a medium is √2, what is the critical angle? A. 45° B. 50012 C. 56°25’ D.75° E.90°
59. Lf − 1 is a root of the equation: x - 2x - 5x + 6. Find the other ro ots, A. -3 & 2 B. 2 & C.3 &-2 D.1 &3 E.-3 & 1.
3 2

74. As a positively charged rod is brought nearer to the top

60. Which of the following lines is pot parallel to the line 3y + 2x -
cap of a positively charged gold leaf electroscope, the
17 = 0? A. 3y+2x7 = 0 B. 9y + 6x + 17 = 0 C. 24y + 16 x + 19
divergence of the leaves will A. decrease to zero B. steadily
= O D.3y-2x+70 E.15y+lOx-10x3-13=0
increase C. decrease to zero’ and then increase D. remain
PHYSICS
constant E. increase to a maximum and then decrease.
61. Apiece of rubber 10cm long stretches 6mm when a load of
100N is hung from it. What is the area stretched if the young
2 2 2 2 75. A rocket bums 0.01kg of fuel each second and ejects it as a
modulus is 50N/m . A. 60m B. 150m C. 33.33m D. 15m2
gas with velocity of 5,000m/s. What force does the gas exert
62. To determine the weight of an object you would A. use a on the rocket? A. 500,000N B. 500N C. 50N D. 5,000N E.
balance B. use a spring balance C. find the force necessary 50,000N.
to give it a certain acceleration D. use none of these
76. Which of the following assumptions is made in a simple
methods E. use any of these methods.
pendulum experiment? The A. suspending string is
63. A gas at pressure PN/m and temperature 27°C is heated to inextensible B. bob has a finite size C. bob has a definite
77°C at constant volume. The new pressure is A. 0.85PN/m B. mass D. initial angle of oscillation must be large.
0.86PN/m C. I. I6PN/m D. 1.1 8PN/m E. 2.85PN/m
77. A rectangular tank contains water to a depth of 2m. if the
64. Two lamp rated 40w and 220w, each are connected in base is 4m x 3m, calculate the force on the base (density of
series. The total power dissipated in both lamp is A. low 3 3 5 4
water 10 kgm , g=10m/s) A. 2.4 x 10 N B. 2.4 x 10 N C.
B. 20w 0.40w D. 80w E. none 4
2.0 x 10 N D. 1.7x10°N
65. A magnet is moved through a coil of wire. The emf produced in
78. The expansion of solids can be considered as disadvantage
the wire depends on A. the number of turns in the coil B. the
in the A. balance wheel of water B. fitting of wheels on our
strength of the magnet C. the speed at which the magnet is vehicle C. fireal arm D. thermostat.
moved D. all of the above E. none of the above
79. When two objects P & Q are supplied with the same
66. A potential difference of 6v is used to produce a current quantity of heat, the temperature change in P is observed to
of SA for 200s through a heating coil. The heat produced be twice that of Q. the ratio of the specific heat capacity of P
is A.4800ca1 B.6000cal C.2400j D.240kcal E.600j
to Q is A. 1:4 B.4:1 C.1:1 D.2:1
67. Two boys are communicating with each other by stretching a
80. A lens of focal length 12.0cm form an upright image three
string passing through a hole punched in the bottom of each of
times the size of a real object. The distance between the
the two tin cans. The physical principle employed is that
object and the images is A.8.0cm B.16.0cm C.24.0cm

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POLAC APTITUDE TEST PAST QUESTIONS AND ANSWERS examsguru.net
D.32.0cm 89. The role of organism, in the environment is termed A.
Biome B. Niche C. Ecosystem D. Catalyst E. A & C
BIOLOGY . 90. Protoplasm + Nucleus + …………………………………….
81. Anatomy is the study of ………. and ........... A. forms and 91. The outer covering of plant cell is A. membrane B. cell
structure B. forms and cell C. Tissue and organ D. system wall C. cytoplasm D. plasma
and structure E. A & 92. The heart pumps blood to all part of the body True / False
82.is the systematic study of the natural phenomena in 93. Blood vessel carries blood away from the, heart. A. vein
the environment A. Anatomy B. cell C. Science D. B. capillaries C. arteries D. Nodules
botany E. polymer 94. The shoulder blade is also called A. Scalp B. Tissue
83. Cell comes from pre-existing cell was a law given by A. C. Scapular D. Tendon E. Ligament
Charles Darwin B. Charles Lams C. Robert Hooke D. 95. Ribosomes is one of the organelle responsible for A.
Robert Korch E. A& B fighting foreign bodies B. synthesis of protein C. building
84. Using the punnet square given by Whitaker, the of fats D. disintegrate lipids.
genotypic ratio in the second law is A.3:1 B.1:3:1 C.1:2:1 96. The study of how living organism interact in its environment is
D.2:1 E.4:3:1 termed A. ecology B. ecosystem C. Niche D. Zoology
85. Groups of cell grouped together link up to produce A. Cells 97. Mendel’s law on genetics is termed as the law of A.
B. Tissue C. Organ D. system E.A&B. Selection B. Assortment C. Segregation D. Build
86. The Capacity of living organism to respond to internal up E.A& C
and external stimuli is A. Excretion B. nutrition C. 98. Pairs of gene with alternating form is termed A. Pure line
irritability D. respiration B. Chromosome C. Allele D. Genes
87. ………. Organism posses living and non living quality A. 99. Strands of genetic materials are termed as A. Pure line B.
Viruses B. Fungi C. Algae D. A&B E. A&C Chromosome C. Autosome D. Manosomes
88. Carl Linnaeus proposed System of naming A. 10 B. 5 C. 6 100. ………. is not a vertebrae A. Cervical vertebrae B. Caudal
D. 7E.12 vertebrae C. Kosal vertebrae D. Sacral vertebrae.

SOLUTION TO 2013 POLAC APTITUDE TEST ADMISSIONS SELECTION TEST

1.D 2.A 3.D 4.D 5.A 6.D 7.D 8.B 9.C 10.C
11.C 12.E 13. A 14.D 15.D 16.C 17.A 18.A 19.A 20.C
21.E 22.B 23.D 24.A 25.C 26.C 27.C 28.B 29.B 30.C
31.B 32.C 33.B 34.D 35.C 36.E 37.D 38.D 39.E 40. A
41.C 42.B 43.C 44.B 45.C 46.A 47.C 48.D 49.* 50.C
51.* 52.B 53.B 54.E 55.C 56.C 57.C 58.B 59.C 60.B
61.B 62.B 63.C 64.E 65.A 66.D 67.D 68.E 69.A 70.A
71.A 72.C 73.A 74.B 75.C 76.A 77.A 78.B 79.D 80.A
81.A 82.C 83.C 84.C 85.B 86.C 87.A 88.B 89.B 90.**
91.B 92.TRUE 93.C 94.C 95.B 96.B 97.C 98.C 99.B 100.C

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