Republic of the Philippines

PROFESSIONAL REGULATION COMMISSION

Manila

BOARD AGRICULTURAL ENGINEERING

AGRICULTURAL ENGINEERING Licensure Examination
Wednesday, September 17, 1997 8:00 am – 2:00 pm
FARM MECHANIZATION, FARM, MACHINERY & ALLIED SUBJ. SET A

INSTRUCTION: Select the correct answer for each of the following equations. Mark
only one answer for each item by shading the box corresponding to the letter of your
choice on the answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use
pencil no. 1 only.

MULTIPLE CHOICE
1. What is the piston displacement per min-per hp of a tractor that has a 4.56 in
bore and 4.75 in stroke and has a crankshaft speed of 2,340 if its power rating
were 35 hp?
a. 12,137.25 b.18, 970.62 c.15, 126.35 d.14, 329.95
2. Compute for the wind velocity of a windmill having a 9 ft diameter wheel and an
efficiency of 25%. The actual power output is said to be .7235 hp.
a. 17.60 b.12.32 c. 9.89 d. 15.87
3. Determine the efficiency of a 64V starting system if the discharge rate for the
battery when the engine is crank is 190 amp. And the maximum power required
for the cranking of the engine is 5 hp.
a. 45% b. 25% c. 31% d. 51%
4. A liquid fertilizer distributor is being checked for application rate. A container
catches 3.20 kg of 43% Nitrogen (N) solution in 58 is from 2 outlet tubes. What is
the rate of N applied if the forward speed is 13 km/hr and the machine is 6-row
outlet tubes spaced 1 m?
a. 65.7 b. 75.0 c. 60.9 d. 70.8
5. A drawer dynamometer shows that the average pull required for a certain machine
is 2,460 lbs. If the tractor travels 1,670 ft in 55 min., what is the rate of travel in
mph a. 1.35 b. 0.75 c. 1.25 d. 0.35
6. What would be the operating efficiency of an engine if its size to operate a 120V
direct current electric generator is 18.91 hp? Assume that it has a maximum
output of 65-amps a. 65% b. 75% c. 55% d. 37%
7. A tractor has a wheel base of 108 in and weight of 7,250 lbs. The state weight on
the front wheels is 4,200 lbs. Calculate the location of the center of gravity
longitudinally with respect to the rear axle
a.62.57 b. 88.76 c. 55.87 d. 73.98
8. A no compensatory model, which evaluates each alternative in the best value,
achieved for any attribute
a. lexicography b. satisfying c. disjunctive resolution d.
dominance
9. A tractor is pulling a 5,000 kg loaded wagon up a 10% slope at km/hr the tractor’s
mass is 3,000 kg. What will be the Drawbar power (DBP) if the coefficient of
rolling resistance is 0.05 for all wheels?
a. 14.32 b. 17.54 c. 20.37 d. 18.77
10. How many pounds of granules should be purchased to treat a 350 ha field if the
granules are applied in 25 cm bands centered over the rows? It is assume that
granules containing 20% Active Ingredient (A.I) are to be applied behind a
planter having 1m row spacing.
a. 365.8 b. 333.8 c. 437.5 d. 547.3
11. The process, which include sorting the products into groups of uniform kind,
variety, size, quality and appearance and eliminating the unmarketable ones.
a. Distributing b. grading c. sorting d. manufacturing
12. It is estimated that the maximum power required for the cranking of an engine is 4
hp. If a 24V starting system sis used which has an efficiency of 70%, what is the
discharge rate for the battery when this engine is crank?
a. 177.62 b. 109.55 c. 234.76 d.498.70
13. If a belt produces a tangential force of 132N on a pulley having radius of 0.576 m
at a speed of 352 rev/min. What will be the power?
a. 4.20 b. 1.15 c. 2.80 d. 3.73
14. Calculate the developed hp required to pull a plow with 5-16 in bottom at a rate of
4.75 mph if the draft is 7 psi of furrow section and the depth cut is 4 inches.
a. 66.7 b. 55.35 c. 33.45 d. 28.37
15. Compute the total no. of explosions per min for a V-12 four stroke cycle engine
having a crankshaft speed of 4,100 rpm.
a. 342,300 b. 417,300 c. 234,500 d. 147,600
16. In a cylinder of volume .5L an ideal gas is compressed from 10 N/cm to 40 N/cm
2. The mass of the gas is 0.001 kg, consider the compression where V1 = V1/M
and V2 = V2/M as the specific volume. The specific internal energy is given by u
= 1.5 Vp + 00 . Find the heat generated by the compression?
a. 24 b. –24 c. 35 d. –35
17. 17. Exactly 140 years ago, my great grandmother deposited P190 in a large
commercial bank as part of a plan. She forgot all about the deposit during her
lifetime. Two years ago, the bank notified my family that the account was worth
P200, 000. What was the effective annual interest rate in this situation?
a.5.2% b. 4.5% c. 3.8% d. 8.9%
18. Determine the effective capacity for a twelve-bottom plow with a rated width of
74 cm each operating at 7.25 km/hr if field efficiency is 87%
a. 7.3 b. 3.5 ‘ c. 5.6 d. 6.5
19. What size of engine would you recommend to operate a 155V direct current
electric generator having a maximum output of 96 amp and an operating
efficiency of 79%?
a. 34.34 b. 25.25 c. 45.45 d.12.12
20. It is determined that a 9 m width-of-cut combine is traveling 1.5 m/s in one
minute’s time, 75 kg of grain are collected in the grain and 85 kg of material are
discharged out of the rear of the machine. What is the machine’s throughout
capacity? a. 10.7 b. 9.6 c. 7.86 d. 11.4
21. If a belt produces a tangential force of 300N on a pulley having radius of 0.357 m
at a speed of 150 rev/min, what will be the power?
a. 3.55 b.1.68 c. 2.54 d.0.98
22. What will be the displacement of tractor with a 9.35 in bore and 8.75 in stroke.
a. 600.48 b. 366.76 c. 567.99 d. 765.98
23. Compute the firing interval for a V-12 four stroke-cycle engine having a
crankshaft speed of 3200 rpm.
a. 60 b. 55 c. 75 d. 90
24. What is the effective interest rate on 10% normal rate compounded semi-
annually?
a. 10% b. 10.47% c. 10.25% d. 10.38%
25. A four-cylinder, four stroke cycle engine with 2.5” x 4” cylinders develops 12 hp.
at 1,850 rpm. Assuming that the mechanical efficiency is 90%, compute the mep.
a. 85.77 b. 91.25 c. 72.69 d. 64.89
26. It is a market that purchase actual supplies for future delivery used mainly for
hedging, i.e. insurance against losses as a result of price changes.
a. special market b. general market
c. future market d. permanent market
27. The following was the result of a unit-system method of calibrating a seeder. The
drill has an effective width of 3 m and is to seed 75 kg/ha. Each wheel drives one-
half of the drill. The tires have squash radius of 350mm, when seed box is half-
full. A 1% wheel slip is assumed. The rate level is set at 75 kg/ha. One side of the
drill is blocked up and that drive wheel is turned 50 revolutions at field speed.
What is the expected seeding rate if 142 kg is collected to a pan beneath the drill?
a. 87.68 b. 72.03 c. 54.90 d.68.79
28. What is the operation efficiency of a 145V direct current electric generator having
a maximum output of 90 amp. If this generator required an engine size of 18 hp?
a. 97% b. 88% c. 90% d. 75%
29. A drill with an effective width of 9m is to seed 65 kg/ha. Each wheel drives one-
half of the drill. The tires have a squash radius of 350 mm when the seedbox is
half-full. A 1% wheel slip is assumed. The rate level is set at 65 kg/ha. One side
of the drill is blocked up and that drive wheel is turned 50 rev. at field speed, what
is the expected seeding rate if 1 kg is collected in a pan beneath the drill?
a. 35 b. 20 c. 27 d. 43
30. A science concerned chiefly with the description and analysis of production,
distribution and consumption is:
a. marketing b. management c. economies d. demand
31. Compute the total no. of explosions per min. for a V-12 four stroke-cycle engine
having a crankshaft speed of 1,240 rpm.
a.44,640 b. 74,450 c. 54,860 d. 64,760
32. What is the average output at the crankshaft of an engine at 1750 rpm the torque
exerted is 115.36 ft.
a. 30.98 b. 25.67 c.12.56 d. 38.42
33. A form of organization that operates under a charter that is granted by a state and
is endowed by this charter with certain rights and privileges.
a. corporation b. company c. partnership d. individual
ownership
34. A tractor has a 5.38 in bore and 8.21 in stroke. Compute the bore-stroke ratio.
a. .65 b. .76 c. .16 d. .99
35. Compute the total no of explosions per minute for a V-12 four stroke cycle engine
having a crankshaft speed of 3,200 rpm.
a. 130,870 b. 670,900 c. 230,875 d. 115,200
36. A women desires to have P550,000 in her refinement savings plans after working
for 30 years. She will accomplish this by depositing a dollar each year in a
savings account that earns 7% per year. How much must save each year?
a. P12,435 b. P5,830 c. P 9,875 d. P10,650
37. Calculate the developed hp required to pull a plow with a 14 in-bottom at rate of
4.15 mph if the draft is 11 psi of furrow section and the depth of out is 6.5 inches.
a. 39.46 b. 31.75 c. 24.17 d. 20.98
38. Given the power required of 5.7 kw, what will be the weight of water to be
pumped up a 200m hill in 15 s?
a. 11.2 b. 20.8 c. 33.46 d. 7.95
39. What will be the developed hp of a four cylinder, four stroke cycle engine with 3”
x 4” cylinders if mechanical efficiency and 1 hp are 92% and 25.30 hp
respectively?
a. 20.35 b.28.23 c.25.50 d. 23.28
40. It is estimated that the maximum power required for the cranking of an engine is
16.5 hp. If a 64V starting systems is used which has an efficiency of 83%, what is
the discharge rate for the battery when this engine is cranked?
a. 697 b. 733 c. 638 d. 546
41. If a certain machine undergoes a major overhaul, its output can be increased by
20%- which translates into extra cash flow of P20,000 at the end of each year for
7 years. If 1 = 12% per year, how much can we afford to overhaul the machine?
a. P86,050 b. P 90, 570 c. P 87,960 d. P 91,280
42. Suppose a force of 200N is exerted at a velocity of 20 m/s. find the power
required. a. 3,670 b. 6,780 c. 4,000 d. 5,900
43. What is the atomic weight of oxygen?
a. 64 b. 32 c. 16 d. 72
44. The inherent characteristics of tractors to maintain or produce increased drawbar
pull even if the speed is reduced.
a. Draw horsepower b. Mechanical efficiency
c. Lugging ability d. Coefficient of traction
45. The accomplishment of tasks through the efficient and effective utilization of
resource is: a. farming b. planning c. economics d. management
46. Find the drawbar power (DBP) for a tractor pulling 3,250 kg loaded wagon up a
23% slope at 15 km/hr of the coefficient of rolling resistance is 0.15 for all wheels
a. 49.18 b.72.37 c.63.29 d. 55.15
47. Compute the thermal efficiency of the engine with 3” x 4” cylinders that develops
33 hp at 1766 rpm, if it used 54 lbs of gasoline in a 3-hr test.
a. 43.55% b. 37.9% c. 19.88% d. 23.33%
48. The difference between the value of a property as it stands possessed of its going
elements and the value of the property alone as it would stand and completion of
construction as a bare or inert assembly of physical parts.
a. going concern value b. good will value
c. in-place value d. depreciated book
value
49. What will be the total piston displacement per min-per hp of a tractor that has a 4-
cylinder engine with 4.5 x 5.5 in cylinder and develops 51.8 hp at 1,400 rpm?
a.2,831.9 b. 3,746.9 c. 5,781.5 d. 4,728.3
50. Compute the crankshaft rear axle speed ratio required to give travel speed of 15
mph for a tractor having an engine speed of 2,000 rpm and rear wheels that are 46
in. in diameter.
a. 18.24 b. 109.7 c. 25.21 d. 23.79
51. What will be the forward speed of a tractor pulling a 3,150 kg loaded wagon up a
13% slope if the rolling resistance for all wheels is 0.03 for all wheels and the
drawbar power is 19.17 kW?
a. 20.7 b. 18.9 c. 21.6 d. 14.5
52. This refers to the portion of investment represented by current assets that are not
capitalized – less the current liabilities.
a. working capital b. investment
c. appraisal d.unrecovered investment balance
53. A tractor with a 12m pulley is belted in a prony brake having a 25 m pulley. If the
engine pulley speed is 1,350 rpm, the brake arm length is 62 in and the internal
load on the scales is 75 lbs. What is the value of the brake constant?
a. 9.84 x 10 – 4 b. 8.94 x 10 – 5 c. 7.65 x 10 – 5 d. 6.87 x 10 - 4
54. It is a market where there is a definite style of packaging followed for each item
because the customers have the habit of buying what they have been accustomed
to. a. permanent market b. future market
c. general market d. special market
55. What size of engine would you recommend to operate a 120V direct current
electric generator having a maximum output of 70 amp and an operating
efficiency of 85%? a. 11.354 b. 5.343 c. 8.996 d. 13.247
56. What is the value of the universal gas constant in J/g mole K?
a. 0.082 b. 8.314 c. 7.886 d. 10.978
57. What is the dimension of the bore of a tractor given that the stroke measures 5.75
in and the bore-stroke ratio equal to 2.35?
a. 16.5 b. 19.7 c. 10.5 d.13.5
58. If a hp engine is required to operate a 150V direct current electric generator what
will be its maximum output? Also given is its operating efficiency of 90%.
a. 76 b. 92 c. 85 d. 70
59. Compute the crankshaft rear axle speed ratio required to give travel speed of 4.5
mph for a tractor having an engine speed of 2,000 rpm and rear wheels that are 60
in. in diameter
a. 79.36 b. 85.76 c. 91.24 d. 66.98
60. A four cylinder, four stroke-cycle engine with 3” x 4” cylinders developing 33 hp
at 1766 rpm. Assuming a mechanical efficiency of 97%, compute the hp
a. 26.77 b. 12.89 c. 34.02 d. 45.90
61. A four-cylinder, four stroke cycle engine with 3” x 4” cylinders develops 19 hp at
1650 rpm. Assuming a mechanical efficiency of 85%, compute the hp
a. 39.89 b. 43.55 c.34.66 d.22.35
62. How long will it take to pump water weighing 23 kg up a 352m hill if the power
required to do the work is 2.33 kW?
a. 67.85 b.34.05 c. 78.09 d. 55.90
63. Determine the pattern efficiency for a 270 turn pattern for plowing a rectangular
field with length r = 535m; width = 127 m; effective width of plow = 4m; turning
radius at end of land = 6m and speed of plowing = 5 km/hr
a. 0.88 b. 1.1 c. 0.02 d. 1.71
64. A liquid fertilizer distributor is being checked for application rate. A container
catches 3.5 kg of 30% Nitrogen (N) solution in 54 s from 2 outlets tubes. What is
the rate of N applied if the forward speed is 8 km/hr and the machine is 6 row
with outlet tubes spaced 1 m?
a. 34.7 b. 35.6 c. 57.8 d.87.5
65. Given the following conditions, find the amount of active ingredient (AI) applied
by the sprayer.
The pump delivers 20L/min of spray at 300 Kpa to ten nozzles the
water spray concentrate ratio in the tank is 10:1. The sprayer travels at a constant
forward speed of 8 km/hr. When the sprayer nozzles are spaced 75cm apart of a
boom and carried 5 cm off the ground, the application is uniform.
The liquid purchased consists of 0.5 kg of AI in each 15 L of spray
concentrate.
a. 1.709 b. 3.807 c. 0.606 d. 2.908
66. Determine the effective capacity for a twelve-bottom plow, with a rated width of
88 cm each operating at 8 km/hr if the field efficiency is 88%
a. 6.88 b. 8.94 c. 9.75 d. 7.43
67. Find the drawbar power (DBP) for a tractor pulling 1,330 kg loaded wagon up a
16% slope at 10 km/hr if the coefficient of rolling resistance is 0.15 for all wheels.
a. 15.56 b. 13.46 c. 11.76 d. 19.86
68. Suppose that certain end-of-year cash flows are expected to be P 1,500 for the
second year, P2, 000 for the third year, and P3, 000 for the fourth year and that if
interest is 15% per year, it is desired to find the uniform annual worth at the end
of each of the four years.
a. P1,326.30 b. P2,234.60 c.P7,896.70 d. P3,765.90
69. Determine the depth of cut of a plow with, 3-14 bottoms with a given rat of
pulling of 4.75 mph and draft of 8 psi of furrow section. Assume that the dhp
required is 25 hp.
a. 9.65 b.8.14 c. 7.56 d. 5.87
70. A decision problem in which the analysis elects to consider several possible
futures, the probabilities of which can be estimated.
a. decision under pressure b. decision under uncertainty
c. decision under certainty d. decision under risk
71. Determine the rated width of each of the twelve-bottom plow operating at 10
km/hr with a field efficiency of 87%. Assume that the effective capacity is 5.714
ha/hr.
a. 54.73 b.44.76 c. 66.87 d.76.99
72. According to Engel’s Law of Consumption: As the income of the family increases
in amount, the proportions spent for rent.
a. decrease b. remains constant
c. increase then decrease d. increase
73. What is the bore-stroke ratio of a tractor with a 9.75 in bore and 10 in stroke?
a. 2.13 b. 1.11 c. 0.34 d. 0.96
74. A bond with a face value of P3,000 pays interest at 8% annually. This bond will
be redeemed at par value at the end of its 20-year life, paid now for this bond in
order to receive a yield of 10% per year or investment?
a. P2,489.06 b.P3,467.80 c. P4,987.80 d.2,134.08
75. Determine the effective width of plow given that the pattern efficient for a 270
turn pattern for plowing is .925m. And the length of the field is 925 m; width is
525 m and the turning radius at end of land 7m.
a. 9.45 b. 8.66 c. 7.67 d. 10.98
76. Determine the average output at the crankshaft of an engine at 3,460 if the torque
exerted is 243.25 ft-4.0 and
a. 175 b.200 c.190 d.160
77. The process of providing a constant supply adequate to meet consumer’s
requirement at all times.
a. hedging b. marketing c. processing d. storing
78. Suppose a force of 750N is exerted at a velocity of 15 m/s. find the power
required.
a. 12,000 b. 11,250 c. 10,500 d. 11,500
79. This term refers to markets with activities conducted on the farm
a. supermarket b. specialty market
c. local assembly market d. general market
80. The interest rate for a stated period that is the equivalent of a smaller rate of
interest that is more frequently compounded.
a. rate of return b. real interest rate
c. nominal interest rate d. effective interest rate
81. A new asset is purchased for P150 and is estimated to have a life of 7 years and a
scrap value of P30 at the end of that time. Using Declining Balance Method, what
will be the depreciation cost or change for the sixth year. Assume an interest rate
of 3%.
a. P3.87 b. P 21.87 c. P15.97 d. P 13.77
82. A tractor has a wheel base of 88 in and weight of 6,400 lbs, the static weight on
the front wheels is 2,100 lbs. Calculate the location of the center of gravity
 longitudinally with respect to the rear axle.
a.32,545 b. 18,785 c. 28,875 d. 10,115
83. What is the brake arm length of a tractor with an 8m pulley belted to a prony
brake having a 20 m pulley? The engine pulley speed is 875 rpm and the internal
load on the scales is 65 lbs, assume that the hp developed is 29.7 hp.
a. 989 b. 444 c. 745 d. 823
84. Given the drawbar power (DBP) for a tractor pulling 3,000 kg loaded wagon up a
20% slope at 10 km/hr is 22.31 kw. What is the rolling resistance for all wheels
a. 26 b.59 c..32 d. .11
85. Determine the pattern efficiency for a 270 turn pattern for plowing a rectangular
field width length = 800 m; width = 600m; effective width of plow = 9m; turning
radius attend of land = 11m; and speed of plowing = 9 km/hr.
a. 0.8606 b.0.5220 c.0.1232 d.1.786
86. The term that refers to the summation of all the costs, both recurring and
nonrecurring, related to a product, structure, system, or service during its life
span. a. book cost b.life-cycle cost c. standard cost d. cash cost
87. A tractor with 9m pulley is belted to a prony brake having a 24 m pulley. If the
engine pulley speed is 950 rpm, the brake arm length is 54 in and the internal load
on the scales is 60 lbs, what is the value of the brake constant?
a. 3.774 x 10-5 b. 8.568 x 10-4 c. 6.984 x 10-5 d. 5.343 x
-5
10
88. In 1993, a company generates P1,500,000 of gross income and incurs operating
expenses of P850,000. Interest payments on borrowed capital amount to P58,000
the total depreciation deductions in 1993 equal P115,000. What is the taxable
income of this firm?
a.P453,000 b.P345,00 c.P477,00 d.P576,000
89. Determine the effective capacity (ha/hr) for a 14-bottom plow with a rated width
of 95 cm each operating at 8 km/hr, if field efficiency is 82
a. 8.72 b. 4.34 c. 5.56 d. 9.89
90. A term applied to goods in a mercantile house which are kept for sale.
a. supply b. stock c.commodity d. demand
91. A tractor has a 2-cylinder engine with 6.35 x 9.25 in cylinder and develops 55.9
hp at 1,250 rpm. What will be its total piston displacement per min-per hp?
a. 16,707 b. 15,500 c. 14,908 d.13,101
92. Given that the wheel base of a tractor is 75 in and it weighs 7,850 lbs. Calculate
the static weight on the front wheels if the location of the center of gravity
longitudinally with respect to the rear axle is 30.5 in.
a. 3,580 b. 3,997 c.3,192 d. 4,150
93. Compute the actual power output of a wind mill having a 10 ft diameter wheel, if
the wind velocity is 18 mph and the efficiency is 20%
a. 7.9108 b.1.7835 c. 0.3124 d.3.6723
94. Determine the compression ratio of a four cylinder 150 mm x 150 mm engine
turning at 1,600 rpm with an individual clearance volume of 155 cu cm
a. 18.10 b. 25.70‘ c. 32.50 d. 10.95
95. This refers to a market condition in which the sellers are few and the product may
either be homogeneous or differentiated.
 a. pure competition b. oligopoly
c. monopolistic competition d. pure monopoly
96. What is the wheel base of a tractor weighing 7,800 lbs if the stated weight on the
front wheels is 1,500 lbs? Assume that the location of the center of gravity
longitudinally with respect to the rear axle is 32.5 inches.
a. 56 b. 79 c. 95 d. 169
97. What is the atomic weight of Carbon?
a. 14.01 b. 13.51 c. 1.01 d.12.01
98. A liquid fertilizer distributor is being checked for application rate container
catches 4.3 kg of 22 Nitrogen (N) solution is 33 from 2 outlet, tubes. What is the
rate of N applied if the forward speed is 9 km/hr and the machine is 6 row with
outlet tubes spaced 1m?
a. 143.88 b.133.67 c.153.33 d.114.67
99. Find the wheel base measurement of a tractor if it weighs 9,250 lbs, with a static
weight on the front wheels of 4,350 lbs and the location of the center of gravity
longitudinally with respect to the rear axle 30 inches.
a. 59 b.78 c.64 d.70
100. Compute for the static weight on the front wheels of a tractor that a wheel
base of 79 in and weight of 7,350 lbs. It is also given that location of the center of
gravity with respect to the rear axle is 32,725 in
a. 5,467.8 b.2,675.9 c.4,675.5 d.3,044.7

***END***
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GOOD LUCK

Republic of the Philippines

PROFESSIONAL REGULATION COMMISSION
Manila

BOARD AGRICULTURAL ENGINEERING

AGRICULTURAL ENGINEERING Licensure Examination
THURSDAY, September 18, 1997 8:00 am – 12:00 noon
SOIL AND WATER CONS., FARM IRRIGATION & DRAINAGE SET A

INSTRUCTION: Select the correct answer for each of the following equations. Mark
only one answer for each item by shading the box corresponding to the letter of your
choice on the answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use
pencil no. 1 only.

MULTIPLE CHOICE
1. What is the scientific name of soybean inoculent?
a.Leucaena leucocephala b. Muse sapientum
c. Rhizobum japonicum d. Zea mays
2. It is the stage in the growth which is considered as the start of the reproductive phase
and is marked by initiation of panicle prim odium, this state occurs approximately 70
to 75 days before expected date of maturity.
a. booting b. panicle initiation c.heading d. tillering stage
3. It is the portion of precipitation which the land cannot absorb or retain on the surface
a.interception b.evaporation c.run-off d. infiltration
4. The number of cm in the perimeter of a certain square is equal to the number of sq cm
in its area. Find the length of the sides of the square.
a. 5 cm b. 2 cm c. 4 cm d. 6 cm
5. A virus condition affecting all cloven-hooved animals like cattle, sheep, pigs, and
deer.
a.blacking b.foot and mouth disease c.pneumonia d.foot rot
6. A wooden beam is 13 feet long slides down a vertical wall while the other end moves
along a horizontal plane at a constant rate of 3 ft/sec. Determine the speed in fps of
the upper end if the beam is 5 ft from the wall
a. 11/12 fps b.-15/11 fps c.13/12 fps d.17/12 fps
7. The locus of a point which moves at a constant distance from a fixed point called
center is the:
a.circle b. square c. conic d. triangle
8. The act of swallowing is also called
a. defecation b. disposition c.fecundation d.deglutition
9. The value of the item which occurs most frequently
a. frequency b. seldom c.mode d.?
10. Water leaks from a hemispherical bowl of 8 inches diameter at the rate of 10 cubic
inch per minute. How fast is the surface falling when the water is 2 inches deep in the
bowl?
a. 1/3 π in/hr b.5/6 π in/hr c. 1/6 π in/hr d. 2/3 π in/hr
11. The most simple form of open-channel flow computation is
a.unsteady non-unifrom b. steady uniform
c. unsteady uniform d.steady non-uniform
12. The following temperature readings were recorded in the laboratory (all in Celsius
scale) : 10, 6, -10, -2, 10, 15 and 6. Determine the standard deviation
a. 9.266 b.7.80 c. 8.43 d.601
13. What is the scientific name of yellow corn?
a. Musa sapientum b.Zea mays
c. Leucaena leucocephala d. Rhizobium japonicum
14. How many fifths are there in 7 3/5”
a. 38 b. 7 c. 3 d.35
15. A box contains 5 red, 4 blue and 3 white ball is chosen at random, what is the
probability that it is not red.
a. 7/12 b.7/8 c. 9/12 d. 5/12
16. Convert one ton to tonne
a. 0.71 b. 0.81 c. 0.61 d. 0.91
17. They provide their principals with a selling organization which shall help them in the
disposal of their products
a. middlemen b. broker c. merchants d. sales agents
18. It is the combine process of evaporation from the sell and transpiration by plants
a.evaporation b.transpiration c.evapo-transpiration d.condensation
19. If thrice the number is increased by 11, the relsut is 35. What is the number
a. 9 b. 11 c. 10 d.8
20. The meat of the goat is called
a. beef b.veal c.chevon d. pork
21. Trying to carry out the marketing concept
a.marketing model b. marketing mix
c. marketing orientation d. marketing plan
22. Which of the following cannot be used as a base of a system of logarithm
a. e b. l c. ? d. 1’0
23. A box contains 5 red, 4 blue, and 3 white balls, in how many ways can select 3 balls
such that they are all red?
a.14 b.10 c. 12 d.13
24. The laying of a fully developed egg is called
a. oviposition b.masification c.ovulation d.parturition
25. If the occurrence of one event does not affect the occurrence of another event, the two
events are
a. conditional b. mutually exclusive c. equally likely d. independent
26. If the degree of slope is increased from 2% to 10% what is the relatively increase in
erosion? Assume other factors are constant
a. 7.4 b. 5.4 c. 4.4 d. 6.4 times
27. The sum of the ages of David and Ann is 25. 5 years ago David was 4 times as old as
Ann. How old is David
a. 21 yrs old b. 24 yrs old c. 30 yrs old d. 28 yrs old
28. One sixth of a dentist’s age 8 years ago equals one tenth of his age 8 yrs hence, What
is his age now?
a. 31 b. 32 c. 29 d. 35
29. George is starting a Math Club. He is the only member now but his plan is to have
each member found two members each month. If his plan works out, how many member
would the club have at the end of 12 months
a.24 b.819 c. 1819 d. 2400
30. It is safety valve of a dam. Its main function is to release surplus or flush flood water
which cannot be contained in the active storage of the reservoir
a. free board b. spill way c. flumes d. weir
31. The temperament or spirit of an animal is also termed
a.disposition b. fecundation c. defecation d. deglutition
32. One angle is twice the another. What are their measure if they are complimentary to
each other.
a. 30o 60o b. 45o 45o c. 70o 20o d. 50o 60o
33. A dam is triangular in crops section with the upstream face vertical. Water is flush to
the top. The dam is 8m high and 6 m wide at the base and weighs 2.4 tons/cu m. The
coefficient of friction between the base and foundation is 0.8 . Determine the maximum
and minimum unit pressure as the foundation.
a. 1.421 metric tons/ sq m ; 0.499 metric tons/sq m
b. 71.25 metric tons/sq m ; 24.7 metric tons/sq m
c. 7.125 metric tons/sq m ; 2.47 metric tons/sq m
d. 14.21 metric tons /sq m ; 4.99 metric tons/sq m
34. The difference between the square of a number and the number is 42, what is the
number
a. 8 b. 7 c. 10 d. 9
35. The volume of water flowing each second, measured in cubic meter per second is
a. steam b. discharge c. velocity d. cross-sectional area
36. The average gestation period of the horse is
a. 114 days b. 280 days c.330 days d.56 days
37. How many kg of 70% copper or must eventually be added to 80 kg of an alloy of
zinc and tin, 40% of which is pure zinc, to obtain an all of 25% tin pure
a. 48 b. 35 c. 50 d.54
38. For a most efficient trapezoidal cross-section
a. width of the bottom = 1.5 of depth
b. width of the top = sum of sides
c. width of the bottom = twice the depth
d. width at the top = ½ sum of sidea
39. Delivery of 360 cfs to an 80 acre flied is continued for 4 hours. Tail water flow is
estimated at 10 cfs. Soil probing after irrigation indicates that one ft of water has been
stored on the root zone. Compute the application efficiency
a. 60 b. 62 c.91 d.67
st th th
40. The 1 , 4 , and 8 term of an AP are themselves GP. What is the common ratio of the
GP a. 4/3 b.7/3 c.5/3 d.2
41.A statement of how an advertising budget will be spent in various media in order to
optimize its potential effect upon the target market segment
a. pricing strategy b. public relation
c. product publicity d. media strategy
42. This refers to the periodic replenishment of plant food removed during cropping after
a desired level of fertility has been brought up
a.corrective treatment b. chemical treatment
c.maintenance treatment d. starter treatment
43. A contrached rectangular weir is to be constructed in a stream of water in which the
discharge varies from 55 in 1415 liter/sec. Determine the length of weir, such that the
measured head will never be less than 60 mm or greater than one third of the length
of weir. a.L = 17.4m b. L = 0.0174 c. L = 1.74 m d. L = 0.174 m
44. Soil ph above 7.0
a. abscissic acid b. acidic soil c. acheme d. alkaline soil
45.Mating of closely related individuals as in brother with sister is or lied
a. outcrossing b. cross breeding c. close breeding d. line
breeding
46. Which of the following is not a characteristic of the mean
a. it is influence by extreme values
b. all the observations are used in its calculation
c.one observation is enough to compute the mean
d. the sum of the deviations from the individual observations and the mean is
always greater than zero
47. Its purpose is to prevent erosion at the top of the dam which might result to failure to
structure. As water discharges over an overflow dam most of its potential energy are
converted into kinetic energy thus producing high velocities at the top of the dam
which causes erosion at toe of the structure
a. apron b. flume c. weir d.spillway
48. A small store located near the credential area open long hrs seven days a week and
carrying a limited line of high turnover convenience goods
a. superstore b. department store c. discount store
d.convenience store
49.IN how many ways can a committee of 4 be chosen from a group of 8 people a. 75
b. 70 c. 65 d.60
50. The frequent slow, application of water to the specific root zone area of the plant is
called a. sub irrigation b. sprinkler irrigation
c. drip irrigation d. flooding

***END***
SUBMIT THIS QUESTION SET TOGETHER WITH THE ANSWER SHEET TO
YOUR WATCHERS, BRINGING THE TEST QUESTION SET OUT OF THE ROOM
WILL BE SUBJECTED TO DISCIPLINARY ACTION.

GOOD LUCK

Republic of the Philippines

PROFESSIONAL REGULATION COMMISSION
Manila
BOARD AGRICULTURAL ENGINEERING
AGRICULTURAL ENGINEERING Licensure Examination
THURSDAY, September 18, 1997 1:00 am – 5:00 noon
RURAL ELEC., FARM PROCESSING & FARM STRUCTURES SET A

INSTRUCTION: Select the correct answer for each of the following equations. Mark
only one answer for each item by shading the box corresponding to the letter of your
choice on the answer sheet provided. STRICTLY NO ERASURES ALLOWED. Use
pencil no. 1 only.

MULTIPLE CHOICE
1. at 10 kvan rans former rated at 250-volt secondary could supply how much current
before becoming overload
a. 400amp b. 2500 amp c.25 amp d. 40 amp
2. ________________ is defined as natural poisoning of man or animals through feeds
containing fungi toxins
a. lethal b.carcinogenic c. toxigenic d. mycotoxicoses
3. Fish are preserved and processed by
a. drying b. salting c. all of these d. smokink
4. The recommended storage space requirement for small grains on ton basis is
a.2.589 to 1.618 cu m b. 2.094 to 1.309 cu m
c. 1.588 to 1.134 cu m d. none of these
5. When using the rubber roll huller about what clearance adjustment between the two
rollers must be maintained in relation to thickness pf the paddy
a. 3/8 the thickness of the paddy
b.1/4 the thickness of the paddy
c. ½ the thickness of the paddy
d. 1/3 the thickness of the paddy
6.Paddy grain with 14% moisture content (wb) has approximately MC db
a. 16.3 b. 17.6 c.15 d. none of these

7. A measure of the power output of a fan in relation to the power

input. The range is from 40% to 80%
a. fan static pressure b. none of these c. fan efficiency d. fan power output

8. Any farm house which needs and uses 120/240-volt electrical

service must have a service drop of
a. 4 wires b.2 wires c. 3 wires d. one wire

9. The only means of preserving food in its original fresh state is by

a. canning b. salting c. refrigerationd. drying
20 Electrolys
11. What is the right symbol of the unit weber
a.wb b. wB c. WB d. wb
12. Identify the benefits of packaging
a. less damage produce
b. marketing can proceed more smoothly
c. all of these consumers are likely to pay higher price
13. Harvesting of grains is done approximately 7-10 days before the expected date or
when the upper grains in most tillers are in the hard dough stage turning green to yellow
the field should be drained
a. easy operation in the field
b. all of these
c. to attain uniform maturity
d. prevent wetting of grain during harvesting
14. The most efficient use of power is obtained when the current
a. leads and voltage
b. is in phase with the voltage
c. lags the voltage
d. out of phase with the voltage
15.Has gained wider coverage in the farm of sheets for roofing and covering layers,
framing parts, grain storage structures and others
a. metal b. concrete c. plywood d. softwood
16. The characteristic in sand of increasing in volume due to addition of small amount
(up to 5%) moisture in it is called
a.mixture b. bulking c. fusion d. setting
17.Dockage D assurement and cleaning continue as unsolved problems in paddy
handling. what basic principle used in cleaning grains for food and feed
a. gravity b. size c. acrodynamic drag d. all of these
18. The heat evolved in the respiration of potatoes stored at Celsius degree
a. 980 to 1,200 BTU/ton-24 hr b. 440 to 880 BTU/ton –24 hr
c. 880 to 950 BTU/ ton 24-hr d. 220 to 410 BTU/ton-24hr
19. The actual respiration or breathing of grain itself is small indeed. The respiration is
caused by
a. humidity or grain moisture b. all of these
c. temperature d. presence of toxins or organisms
20.
21. 20 kilograms of water at an initial temperature of 25o C is heated until the tenperature
is increased to 80o C. determine the quantity of heat energy supplied
a. 15,500 kJ b. 4609 kJ c. 400 kJ d. 3141 kJ
22.The recommended drying air temperature employed for batch type flatbed dryers to
maintain the optimun milling quality of the grain is
a. 60o C b. 45o C c. 43o C d. 80o C
23. Bulk density of milled rice
a. 1730.50 kg/m3
b. 720.25 kg/m3
c. 725.76 kg/m3
d. 728.00 kg/m3
24. Identify the major packaging material and container
a. metal and glass b. plastics an laminates
c. all of these d. wood and paper
25. Which statement is not correct: the paddy is cleaned to;
a. remove materials could damage the conveying and milling machinery
b. remove materials that cause an improvement in the grade
c. reduces requirements for drying and drying cost
d. removed materials that could cause paddy deterioration during storage
26. Popularly used in the Philippines because it is simple and cheap. Fuel is metered to
the vaporizing burner by an adjustable needle value. Fuel energy received from the
combustion walls and flames.
a. Solid fuel burner b. gas burner c.kerosene pot burner c. oil burner
27. The grain kernels are heated directly by infrared source which increase the vapor
pressure of the air
a. infrared drying
b. infrared water extraction
c. infrared heating
d. infrared dehydration
28.________ is accomplished by passing grain between a closely fitted set of rollers
a. flaking b. grinding c. rolling d. crimping
29.

29. A set generate rule, the recommended RH of storing leakfy and rootcrop
vegetables varies from
a. 80-85 % b. 85-90% I…c. none of these d. 90-95 %
31.The promotion of cleanliness for the prevention of disease and for public health
protection
a. recycling b. solid watse management c. sanitation d. all of these
32. Weight of moisture equivalent to one kilogram
a. 15,400 grains/kg b. 15,45 grains/kg
c. 15,300 grains/kg d. 15, 500 grains/kg
33. Magosteen is Garcinia Mangostane L. lime is
a. Citrus reticulata Blco
b. Citrus aurentifilia (christin and Panz)
c. Cirus grandis L. Osbeck
d. Citrus Madimensis Lous (C. mitis Bico)
34.How is the length of the paddy grain measured
a. length of paddy grain
b. ratio of the length and the thickness
c. all of these
d. length of the brown rice kernel
35. Every building may be considered as being made up of
a. walls and pillars, floors and roofs
b. foundations, floors, roofs and pillars
c. foundations, walls and pillars, roofs, floors, doors, and windows
d. doors and windows, roofs, floors and walls
36._________ “ Science Act of 1958” an act to integrate, coordinate and intensify
scientific and technological research and development and to foster invention and to
provide funds thereof
a. R.A. 6720 b. RA 2067 c. RA 6027 d. RA 2607
37. _______ storage refers to the composition of the atmosphere altered from that of air
respect to the proportions of 02 and/or CO2
a. All of these b. hermetie c. modified atmosphere d. controlled atmosphere
38. The converntional index used to determine whether the paddy is dry enough fro safe
storage or for milling with maximum milled rice recovery usually expressed in percent is
a. water ratio b. moisture equivalentc. moisture content d. water content
39. the process of simultaneous heat and moisture transfer that leads to the removal of
excess moisture from grains”
a.water extraction b. dehydration c.water evaporation d. drying
40. Electric conductor which are larger than 8 sq mm
a. cable wires b. cables c. wires d. transmission lines
41. A product from board leaf decidous trees
a. softwood b. cocowood c. hardwood d. plywood
42. A device for mixing air and fuel with the proper proportions for conbustion, with the
flame adjacent to the burner
A. NONE OF THESE b.air-atomizing burner
c. kerosene pot burner d. solid fuel burner
43. An actived sludge that does not settle property in a secondary classifier, causing high
effluent BOD.
a. bulking sludge b. activated sludge c.sewage d. effluent
44. also called the general purpose barn, the cows are housed and milked in the same
building
a. grazing b.the open air barn
c. the loose housing barn d. the stanchion barn
45. 20 liters of water will have a volume of
a. o.22 cu m b. 0.16 cu m c. 0.18 cu m d. 0.20 cu m
46. One cavan of milled rice (50 kilograms) is equal to
a. 75 liters b.70 liters c.80 liters d.85 liters
47. Chemical poisons used in pest control is called
a. fumiganis b. fungicides c. all of these d. insecticides
48. Controlled atmosphere storage has been commonly used to
a.lower the incided of storage disorders
b.delay ripening of fruits
c. all of these
d. retard the spread of disease
49. What are the commodities which require appropriate post harvest operation?
a. food crops b. all of these c. livestock and fisheries d. imdustrial crops
50. This method of heat transfer occurs when energy is transmitted by direct contact
between the molecules of a single body or between the molecules of two or more bodies
in good thermal contact with each other.
a. cooling
b. radiation
c. convection
d. conduction