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Class 7

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0% found this document useful (0 votes)
51 views7 pages

Class 7

quiz

Uploaded by

bharathkumarv065
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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o. rmu llllllliMum w.

u.6iK ones '


1. Select a figure from the options which will
conti to draw the given figure.
reciuired
Figure •
the same series as established by the Problem
Problem Figures

© © ? © * A. 24
Z_A
B. 23
C. 22 D. None of these
r /
A.
© B. © 7. Garvit walks 25 m towards North, he then turns
towards his right and walks 15 m. He again turns
r towards his right and walks 20 m. Finally, he takes
C. © D. 00 a right turn and stopped after walking 5 m. Howfar
and in which direction is he now from his starting
2. In a certain code language, if 'PIANO' is written as point?
'KRBML', then how will 'PRIME' be written in the A. 5-\/5 m, South-East
same code language? B. 15 m, North-East
A. TRKCK B. TRJGO C. 5ÿ5 m, North-East
C. TRJCK D. TRJKC
D. 15 m, South-East
3. Select the correct water image of the given combination
8. Select a figure from the options in which the given
of letters and numbers.
figure is exactly embedded as one of its parts.
LP5T9S3R2
A. Tb21d23K3 B. sfltze-Rqj
C. 3ÿ£S61S<n D. LP2TdS£R2

4. Which of the following Venn diagrams best depicts


the relationship amongst, "Females, Managers and
Mothers"?
a-
M b-
m
(ÿ)
c. D.
A- B.
(gj) 9. Which of the following options satisfies the same
conditions of placement of the dots as in the given
figure?

5. Select a figure from the options which will complete


the pattern in the given figure.

A. B.

m
C.
LXA D.

* B.
10. Pointing towards a lady, Rajvir said, "she 'Son|V
C.
& D.
daughter of father-in-law of my grandfathcr |r?
aughter-in-law." How is that lady related to
Paternal aunt B. Maternal aunt
O C-
Sister-in-law D. Mother

SQF I NSO I Class-7 | Se


11. Jasmine enters her room and turns on the air 14. Sangeeta is standing in the balcony of a very tall
conditioner. She stands in front of it and feels cold building. She drops a small ball outside the building
immediately. However, she realises that it takes in the air. Which one of the following graphs best
some time for all the air in the room to cool down. depicts the variation of speed of the ball in air with
Which one of the following options represents the time?
transfer mechanisms by which Jasmine is feeling
cold and the air in the room cooled down?
t t
Jasmine Air in the room
A. B.
A. Convection Convection Q.
Cn
B. Conduction Conduction Time -ÿ Time —
C. Conduction Convection
D. Convection Conduction t t
12. Anisha places a U-shape magnet on a horizontal C. <U D. a>
to u->
surface. She then places two compasses next to it
as shown in the given figure. Time — Time

N 15. A magician performs a magic trick. He puts a solid


Compass 1 O sphere made up of a material X in a liquid Y and
'v s~| O Compass 2 makes it disappear.
In which directions will the compasses point? Which of the following statements are correct?
(i) The refractive index of material X is greater than
N
N that of liquid Y.
A. t B.
s

N
* s

N
(ii) The refractive index of material X is smaller than
that of liquid /.
(iii) Refractive indices of both material X and liquid
/ are same.
C D‘ (iv) His magic trick is based only on the principle of
t
* s s
reflection of light.
(v) His magic trick is based on the principle of
refraction of light.
13. Which one of the following setups will produce the
A. (i) and (v) only B. (ii) and (iv) only
greatest lift in a Maglev train?
lyiaglev C. (ii) and (iii) only D. (iii) and (v) only
train
16. Mia places a thin piece of material X between two
strong magnets as shown in the given figure.
L-> Rails
[
£N n
Permanent magnet
on the train
Permanent magnet
on the train IJN u Material X

Among the given pool of materials which of the

A.
nh N
B.
S
following have the possibility of being material X?
Gold, Aluminium, Plastic, Iron, Copper,
Cobalt, Alnico, Paper, Leather and Tin.
I
I L A. Iron, Cobalt, Copper, Tin
Electromagnet
Electromagnet B. Tin, Paper, Plastic, Leather
in the rails
in the rails C. Iron, Alnico, Cobalt
Permanent magnet Permanent magnet D. Gold, Aluminium, Iron
on the tram on the train
17. A solid cylinder is rolling down
on an inclined plane as shown in
N s the given figure. Which one of the
C. D.
l i following options best represents
the type of motion of the cylinder?
T T
A. Translatory only B. Linear only
Electromagnet
Electromagnet
in the rails C. Rotational and linear D. Periodic and rotational
in the rails

NSO | Class-7 | Set-A | Level 1 | sUF O


18. Match column I with column II and select the correct B. Both statements 1 and 2 are true but statement 2
i
option from the codes given below. is not the correct explanation of statement 1.
Column I Column II C. Statement 1 is true but statement 2 is false.
(a) Object is moving (i) D. Both statements 1 and 2 are false.
with variable speed 22. Ridhi took a silver spoon, a glass rod, a wooden spoon
and a plastic spoon. She dipped one end of each item
fi
o
into boiling water for ten minutes and then touched
Time
the end extending outside the water. Based on this
(b) Object is at rest (ii) experiment, select the correct statement from the
following.

I Time
A. Only silver spoon becomes hot as metals are good
conductors of heat.
B. All the objects become hot, as all of these are good '
(c) The graph which is (iii)
conductors of heat. '
not possible

I
C. Only glass rod and silver spoon become hot as both J
of these are good conductors of heat.
Time
D. Only plastic spoon and wooden spoon become hot
as both of these are good conductors of heat.
(d) Object is moving (iv)
with constant speed 23. Observe the given experimental setup carefully.

i
Time
Layer
of oil11
Boiled
Pf ‘Sum5 Pf
Tap water -yf- \ chloride
A. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) distilled /fflWT?rlron nails7ÿrr-wr\ MSSK&T Iron
B. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) water (i) (ii) (iii) nails
C. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv) Based on the above experiment, select the incorrect
D. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) statement(s) from the following.
I. The nails in flask (iii) will rust because oxygen
19. Two holes of unequal diameters and D2 (D, > 02) is available.
are cut in a metal sheet. If the sheet is heated, then
II. The nails in flask (i) will not rust because oxygen
is not available.
III. The nails in flask (ii) will not rust as only water

0
is available for rusting.
A. I and III only B. II only
C. I and II only D. Ill only
A. ,
D will increase, D2 will decrease
24. Riya prepared an indicator paper by dipping a paper
B. Dj will decrease, D2 will increase
C. Both O, and D2 will decrease strip in a solution of X. She put a few drops of an
D. Both D, and D2 will increase. unknown solution Y (in which number of H* ions
is less than that of OH' ions) on this paper. She
20. Which of the following are real images? observed that the colour of paper turned yellow.
(i) Image formed by a plane mirror. Solutions X and Y could be respectively
(ii) Image formed by a concave mirror when object A. Red litmus solution and tamarind juice
is placed at infinity. B. Phenolphthalein and baking soda solution
(iii) Image formed on a cinema screen.
(iv) Image formed by a magnifying glass kept near
C. Methyl orange and lime water
D. Turmeric solution and lemon juice.
I
the paper. i
A. (i) only B. (ii) and (iii) only 25. A few processes are listed as follows:
C. (i), (ii) and (iii) only D. (ii), (iii) and (iv) only I. Rusting of iron
II. Dissolution of ammonium chloride in water
21. Read the given statements and select the correct option.
III. Decomposition of calcium carbonate
Statement 1 : Amla and tamarind juice turn China
rose indicator green and blue litmus IV. Addition of zinc powder to copper sulphate
red. Which of the following statements is incorrect
Statement 2 : Amla contains acetic acid while regarding these processes?
tamarind contains oxalic acid. A. Processes II and III are endothermic.
A. Both statements 1 and 2 are true and statement 2 B. Process III results in evolution of gas while process
is the correct explanation of statement 1. IV results in change in colour of the solution.

sQp | NSO | Class-7 | Set-A | Level 1


O
Q process IV is an example of decomposition reaction. K : It is a multicellular organism which has numerous
p Process I is an exothermic reaction. tentacles around its mouth which entangle small
During the science activity, Ms. Geeta conducted aquatic animals and kill them with its stinging cells.
26
the following experiments : X Y
Experiment I : 10 g of finely powdered sugar A. Amoeba Paramecium
was dissolved in 20 mL of water at Hydra
B. Earthworm
35 *C. Hydra
C. Amoeba
Experiment II : 20 g of finely powdered sugar was D. Paramecium Amoeba
dissolved in 150 mL of water at
75 *C. 30. During a group discussion in a class, four students
Experiment III : 30 g of finely powdered sugar gave statements regarding photosynthesis. Which
was dissolved in 50 mL of water at among the following students gave the correct
15 *C. statement?
Experiment IV : 20 g of finely powdered sugar Student P : During photosynthesis, green plants
was dissolved in 50 mL of water at
convert solar energy into light energy.
10 °C.
Student Q : The range of photosynthetically active
In which experiment sugar took the shortest time
to dissolve?
radiation lies between 400-700 nm.

A. Experiment III B. Experiment IV Student R : At temperature above 25*C, the rate of


C. Experiment II D. Experiment I photosynthesis decreases.
Student S : The rate of photosynthesis is maximum
27. Select the incorrect statement(s) from the following.
in red and blue-violet regions of the light spectrum.
I. The process of distillation is used to separate
those solids from their mixtures which directly A. Students P and R only
pass to vapour state without passing through B. Students Q and 5 only
the liquid state upon heating. C. Students Q and R only
II. An alloy is a homogeneous mixture of two or D. Students P and S only
more elements, at least one of which is a metal
and the resulting material has metallic properties. 31. Which among the given letter groups upon
unscrambling will give the name of a biennial plant?
III. Winnowing is used to separate lighter components
of a mixture from the heavier ones by using a A. PNRUIT B. UDRSAMT
magnet. C. ADYPD D. GMNAO
IV. Filtration is used for the separation of an insoluble
32. Read the given statements and select the option
solid from a solid-liquid mixture. that correctly identifies them as true (T) and
A. I and IV only B. II only false (F) ones.
C. I and III only D. II and IV only (i) Decomposers are found on the forest floor.
28. Nidhi classified a few changes as : (ii) Van Mahotsava is usually celebrated in the first
week of July in India.
S. No. Changes Type (iii) The emergent layer receives very little sunshine
(i) Exothermic and thus the plants in this layer have larger leaves
Melting of ice
to absorb maximum sunlight.
(ii) Evaporation of water Endothermic (iv) Carnivores that eat herbivores are called primary
(iii) Burning of carbon Endothermic consumers.
(iv) Slaking of lime Exothermic (i) (ii) (Hi) (iv)
Endothermic A. T F F T
(v) Photosynthesis
B. T T F F
Changes classified correctly are C. F T T F
A. (iii) and (v) only B. (i), (ii) and (iv) only D. F F T T
C- (i) and (iii) only D. (ii), (iv) and (v) only.
33. When a person exhales, what happens to the
29- Read the given statements regarding the feeding diaphragm and ribs?
habits of organisms X and Y; and select the option Diaphragm Ribs
that correctly identifies them. A. Relaxes Move downward and inward
X •It is a unicellular organism that engulfs the tiny B. Contracts Move upward and outward
particles of food by surrounding it with the
help C. Relaxes Move upward and outward
D. Contracts Move downward and inward
of pseudopodia.

Nso I Class-7 | Set-A | Level 1 | S<?F


o
34. Refer to the names of food items given in the box. 39. Read the given statements and select the option that
correctly fills any two/three of the given blanks.
1. Cooked rice 2. Potato 3. Salt 4. Wheat
bread 5. Butter 6. Cheese 7. Popcorn 8. Egg
(i)

_
_
Pollination carried out with the help of snakes
is called •

Which among them will give bluish-black colour on (jj) constitutes the outermost floral whorl.
adding iodine solution? (iii) Fruits formed from the thalamus such as (p)
are called (q) fruits.
A. 1, 2, 4 and 7 only B. 3, 6 and 8 only (iv) Autogamy leads to self fertilisation and it always
C. 4, 5 and 7 only D. 1, 2, 3 and 4 only occurs in flowers.
(v) The shoot-forming part of an embryonal axis is
35. Identify the group that contains all monoecious
plants and select the correct option.
called _.
A. (i)-Chiropterophily, (iii)-(p)-Apple; (q)-False
A. Maize, Coconut, Cucumber B. (ii)-Sepal, (v)-Plumule
B. Date palm. Papaya, Watermelon C. (i)-Ophiophily, (iv)-Unisexual
C. Coconut, Papaya, Maize D. (ii)-Petal, (iii)-(p)-Banana; (q)-Parthenocarpic
D. Date palm, Cucumber, Pumpkin
40. Read the given paragraph and select the option that
36. Refer to the given figure of blood vessels. Identify X, correctly tills the blanks (i) and (ii).
Y and Z and select the incorrect statement regarding Translocation of food in plants takes place through
them. .
the cells of (il (i) has elongated cells called
(ii) that are placed one above the other to form
x z long tubes, through which food is transported.
(i) (ii)
Y
C\ A. Xylem Vessels
f, B. Phloem Stomata
C. Xylem Vascular tissue
PI D. Phloem Sieve tubes

41. Which of the following animals is correctly categorised?


A. Blood flows through X under high pressure. Animal adapted to Animal adapted
B. Y helps in the exchange of substances between desert habitat to polar habitat
blood and the body cells. A. Opossum Gorilla
C. Z have thick elastic walls. B. Kangaroo rat Reindeer
D. X is usually deeply seated. C. Yak Snail
D. Otter Giraffe
37. Select the incorrect match.
A. Fermentation - Occurs in the absence of oxygen 42. Select the pair of vitamins manufactured in the
human body.
and yields very little energy
B. Internal respiration - Exchange of gases between A. Vitamin D and Vitamin K
blood and body cells B. Vitamin D and Vitamin C
C. Exhalation - Decrease in air pressure inside the C. Vitamin A and Vitamin K
lungs causes air to move out from the lungs D. Vitamin B3 and Vitamin E
D. Stomata - Present on the surface of leaves and 43. Refer to the given food web and select the correct
young stems statement regarding it.
38. Read the following statements and select the correct T
option. R S
Statement 1 : Root hair helps in the absorption of
water and mineral salts.
Statement 2 : Root hair decreases the surface area P -> Q
of the roots for the absorption of water and mineral U
salts.
A. There are three secondary consumers and two
A. Both statements 1and 2 are true and statement 2
producers in the given food web.
is the correct explanation of statement 1.
B. There are two omnivorous organisms in the given
B. Both statements 1 and 2 are true but statement 2
food web.
is not the correct explanation of statement 1.
C. An increase in the population of U will result in
C. Statement 1 is true but statement 2 is false.
decrease in the population of both Q and S.
D. Both statements 1 and 2 are false. All of these
D.

o SQF I NSO I Class-7 | Set-A | Level 1


44. 'dent1fY P' Q' and R in the given Ve"" diagram and 45. Read the given passage and select the option that
select the incorrect statement regarding them.
correctly fill up the blanks (i)-(iv).
/it is causedX, of
/ due to the A A It is caused Decomposers play an important role in 10
/ deficiency Deficiency \ due to the nutrients. Bacteria and f iil are the examples of
y
of proteins, I disease R deficiency of decomposers that break down the dead remains of
\ fats and \ >
P j a fat soluble plants and animals. Through this process, nutrients
VcarbohydratesA X vitamin are released into the fiii) from where they are
absorbed by the ffv) of the plants.
A. P could be a disease like anaemia or scurvy.
(i) (ii) (iii) (iv)
B. The symptoms of R could be nerve disorders and
muscle weakness. A. Reuse Viruses Air Stem
The symptoms of Q could be weight loss, B. Recycling Fungi Air Stem
C.
dehydration, dry skin, etc. C. Decomposition Viruses Soil Roots
D. R could be a disease like beriberi or pellagra. D. Recycling Fungi Soil Roots

ACHIEVERS SECTION

46. Identify P-S in the given A. P could be ginger whereas S could be bread mould.
figure and select the option
that identifies the correct
statements (i)-(v) regarding
/ I /

(
B.
C.
Q could be Spirogyra whereas R could be yeast.
R could be Vallisneria whereas S could be
Bryophyllum.
them. \ D. S could be fern whereas P could be Bougainvillea.
(i) P is present in the Q 48. Ananya, a class 7 student studied the nature of a
abdominal cavity just few common substances with the help of acid-base
below the diaphragm. indicators. Her observations are summarised in the
(ii) In humans, P and R are given table with a few blank spaces.
-R
made up of tiny filtering
units called nephrons. Indicators
(iii) Q is a narrow, muscular, tubular structure that Substance Phenolph- Turmeric China Methyl
conducts urine from P to R. thalein solution rose orange
(iv) Mesh of capillaries present in R helps to filter (i) Colourless (ii) Magenta Red
out excess water and salt from urine. Lime
(v) S is situated in the pelvic region and helps to water
(iii) (iv) Green Yellow
store the urine temporarily. No No

__
A. (i), (ii) and (iv) only M Colourless
change
(vi)
change
B. (ii)/ (iii)/ (iv) and (v) only
Reddish
C. (i) and (iii) only (vii) Pink (viii) Yellow
brown
D. (i), (iv) and (v) only __ _
Based on the above table, select the correct statements
47- Study the given flow chart carefully. from the following.
I. (i) can be calamine solution or sugar solution as
Organism reproduces by asexual method their pH > 7, while (ii) can be yellow colour.
I™ II. (iii) and (iv) represent pink and reddish brown
colours respectively.
It reproduces by vegetative propagation
III. (v) can be common salt solution and (vi) represents
green colour.
It reproduces by fragmentation IV. (vii) can be soap solution and (viii) represents
green colour.

It reproduces by budding
7 V. (iil) represents pink colour while (v) can be an
aerated drink as its pH < 7.
S A. I and V only
It reproduces by spore formation B. II and IV only
identify P-5 and select the incorrect statement
C. I, III and V only
D. II, III and IV only
regarding them.

NS° I Class-7 | Set-A | Level 1 | sUl



O
49. Read the given passage where few
words have been
italicised and select the incorrect statement
regarding
mirror is placed at a height A
of the ground. A source S is
- 25 m above the surface
placed symmetr.cally in
the given figure.
front of the mirror as shown in
them.
glands Mirror
In humans, mouth contains two pairs of salivary
which secrete saliva in the buccal cavity. Saliva
111 m/s
contains salivary amylase which changes sugar
to starch. Stomach secretes cellulose that breaks
proteins into peptones. Bile is an acidic fluid secreted
by liver that helps in the emulsification of fats.
3m
0.7 m
«5
7m
ft Hot air
balloon

A. Two should be replaced by three whereas buccal h = 25 m


cavity should not be changed as it is correctly
mentioned.
1 Ground
B. Salivary amylase should not be changed
whereas positions of sugar and starch should be If the maximum range over which Ajay can see the
interchanged. image of the source is rm„ and the maximum time
C. Cellulose should be replaced by pepsin is whereas interval during which the image can be viewed is
proteins and peptones must not
be changed as tm„, then their values are calculated as follows:
they are correctly mentioned.
D. Acidic should not be changed as it (i) rm„ = 33 m (•') = 3 sec
is correctly
mentioned whereas liver must be ('») = 66 m (iv)
pancreas.
changed to = 6 sec
Which of the above values are correct?
50. A. (i) and (iv) only
B. (ii) and (iii) only
C- (i) and (ii) only
" front of a p|ane mirror of |ength 3 m D- (iii) and (iv) only

SPACE FOR ROUGH WORK

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