NSO Class 8th - Mock Test 1 Books

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Question 1
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Choose the odd one out from the following options.

A
Venus

B
Neptune

C
Jupiter

D
Uranus

Question 2
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Find the alternative which will replace the question mark (?).

5 : 26 :: 7 : ?

A
42

B
45

C
47

D
50

Question 3
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In a certain code language, JAGUAR is coded as KBFTBS. How will CHITAL be coded in the same code language?

A
DIJUBM

B
DIHSBM

C
DIHSZK

D
DIHUBK

Question 4
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Find the missing term in the given series:

7, 15, 19, 27, ?, 39, 43

A
30

B
31

C
33

D
35

Question 5
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Which among the following options is considered as a major semi-Rabi crop in India?

A
Sesame

B
Barns

C
Clover

D
Trefoil

Question 6
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Which crops are grown between the months of March and June i.e., between Rabi and Kharif crop seasons?

A
Horticulture crops

B
Industrial crops

C
Plantation crops

D
Zaid crops

Question 7
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Which microorganism causes rust of wheat in leaves?

A
Alga

B
Fungus

C
Bacterium

D
Virus

Question 8
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Which of the following options is TRUE?

A
All the multicellular organisms start their lives as a single cell.

B
Nucleolus is situated inside the nucleus.

C
Cell membrane is responsible for providing structure to a cell.

D
All of the above

Question 9
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Which polyester fabric is used to make very fine yarn by which various dress materials are made?

A
Ramie

B
Terylene

C
Vinyon

D
Linen

Question 10
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In an automobile service centre, Ramzan is using a screwdriver to open nuts and bolts of a car. He looks at a screwdriver and wonders why handles of screwdrivers are made of plastic. State the reason behind that.

A
Plastic is a poor conductor of electricity.

B
Plastic is a good conductor of heat.

C
Plastic is a good conductor of both heat and electricity.

D
Plastic is a poor conductor of both heat and electricity.

Question 11
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Which of the following statements is not correct?

A
Metals are lustrous.

B
Metalloids are not metallic in nature.

C
Non-metals do not form distinctly basic oxides.

D
Metals are of high density.

Question 12
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Which of the given options below is not a diatomic non-metal?

A
Chlorine

B
Oxygen

C
Nitrogen

D
Sulphur

Question 13
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Which product among the following options can be obtained from coal tar?

A
Bitumen

B
Sulphur

C
Gasoline

D
Perfumes

Question 14
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What purpose is paraffin wax used for?

A
Ointments

B
Lubrication

C
Paints

D
Road surfacing

Question 15
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Which of the following is not true about a good fuel?

A
Burns well, not with explosion

B
Has low smoke and ash content

C
Can't produce a large amount of heat

D
Ignites easily

Question 16
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Which of the following options is TRUE?

A
Weeds are the unwanted plants growing along crops.

B
Weeds share the nutrients meant for plants.

C
Weedicides are sprayed in the fields to kill the unwanted plants.

D
All of the above

Question 17
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Diana, Dave and Cameron are working on a project in which they are burning a heap of green leaves, but they are finding difficulty in doing so. Why is it difficult to burn a heap of green leaves?

A
Because it has a high ignition temperature.

B
Because it contains high amounts of water.

C
Because it contains low amounts of water and has a low ignition temperature.

D
Because it contains high amounts of water and has a high ignition temperature.

Question 18
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What is the largest threat due to which wildlife is in danger?

A
Unregulated hunting and poaching

B
Over-exploitation of resources

C
Pollution

D
Deforestation

Question 19
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What is the main aim of the United Nations Educational, Scientific and Cultural Organisation?

A
Preservation of plants, animals, and natural communities that represent the diversity of life on Earth

B
Conservation, research and restoration of the environment

C
Providing an intellectual framework and practical guidance for conservation actions

D
Studying the political and economic impact of USAID given towards the "Environment and Natural Resources"

Question 20
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Which among the following options is the non-governmental organisation working on issues regarding the conservation, research and restoration of the environment?

A
The Nature Conservancy

B
Wildlife Conservation Society

C
Born Free Foundation

D
Worldwide Fund for Nature

Question 21
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Which is the largest gland in the human body?

A
Liver

B
Pineal gland

C
Large intestine

D
Stomach

Question 22
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What name is given to the finger-like outgrowths present on the inner wall of the small intestine?

A
Cilia

B
Flagella

C
Villi

D
Extensions

Question 23
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What will be the sum of potential energy and kinetic energy if the object is falling from a height?

A
Total weight of the object

B
Total mechanical energy

C
Total potential energy

D
High kinetic energy

Question 24
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Yeast is used in the production of

A
sugar

B
alcohol

C
hydrochloric acid

D
oxygen

Question 25
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When a bucket full of water is drowned in water, its weight becomes less than before due to

A
density of water

B
buoyancy force

C
pressure of water

D
surface tension of water

Question 26
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Small liquid drops are spherical in shape due to the phenomenon of

A
adhesion

B
gravitational force

C
atmospheric pressure

D
minimum surface area due to surface tension

Question 27
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When the same note is played on a sitar and a flute, the sound produced can be distinguish from each other because of the difference in which of the following?

A
Pitch

B
Pitch and loudness

C
Quality of material

D
Loudness

Question 28
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What is the function of pepsin?

A
It regulates arterial blood pressure.

B
It breaks down proteins into smaller peptides.

C
It hydrolyses carbohydrates.

D
It detoxifies chemicals.

Question 29
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Rahul and Simran were fighting with each other on whose voice is louder, but they were confused. Then, their third friend calculated their loudness. What do you think is the unit used by the third friend to measure the loudness?

A
Hertz

B
Metre

C
Kilometre/second

D
Decibel

Question 30
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Shilpi is a drummer. She notices that when she plays a drum, it vibrates and produces sound. She wonders if any part of her body also vibrates when she speaks. What could be that part of the body?

A
Lips or teeth

B
Vocal cord in larynx

C
Legs

D
Joint of hands

Question 31
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Which one out of the following is an insulator?

A
Hydrochloric acid

B
Golf ball

C
Sodium hydroxide

D
Gold

Question 32
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Which of the following is formed over negative pole when electric current is passed through water?

A
Carbon dioxide

B
Oxygen

C
Hydrogen

D
Helium

Question 33
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Which of the following precautions can be taken when an earthquake occurs?

A
Use elevators during an earthquake.

B
If driving, stop near power lines, bridges.

C
If outdoor, stand under a tall tree.

D
Duck under a table or desk.

Question 34
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Take a ball pen refill and rub it against a woollen cloth. Bring this refill near bits of paper. What can be observed by performing the this activity?

A
A charged object attracts an uncharged object.

B
A charged object does not attract an uncharged object.

C
Like charges repel each other.

D
Like charges attract each other.

Question 35
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Which of the following phases of Moon appears as a circle with some portion cut off?

A
New Moon

B
1^st Quarter

C
Waxing Crescent

D
Waxing Gibbous

Question 36
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The distance between the Earth and the Sun is known as:

A
Astronomical Unit

B
Light Year

C
Waxing Gibbous

D
Waxing Crescent

Question 37
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Which of the following is a terrestrial planet?

A
Jupiter

B
Saturn

C
Uranus

D
Mercury

Question 38
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The excess level of which one of the given options can cause depletion of ozone layer?

A
CFCs

B
Hydrogen

C
Oxygen

D
Helium

Question 39
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Which of the following is/are a cause of water pollution?

A
Chlorofluorocarbons

B
Exhaust from automobiles

C
Suspended particulate matters

D
Untreated sewage

Question 40
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Which of the following statements are true?

1. The property of metal by which it can be drawn into wires is called ductility.
2. Since metals produce ringing sounds, they are said to be sonorous.
3. When a copper vessel is exposed to moist air for long, it acquires a dull yellow coating.

A
1 and 3

B
2 and 3

C
1 and 2

D
1, 2 and 3

Question 41

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Match the following petroleum product with its uses.

Petroleum product	Use
(i) Petrol	P. Fuel for heavy vehicle, such as trucks, rail engine
(ii) Diesel	Q. Fuel for stoves, jet air-crafts, lamps, etc.
(iii) Kerosene	R. Used in making of paints, road, etc.
(iv) Bitumen	S. Solvent for dry cleaning

(i) – S, (ii) – P, (iii) – Q, (iv) – R

(i) – P, (ii) – S, (iii) – Q, (iv) – R

(i) – S, (ii) – Q, (iii) – P, (iv) – R

(i) – S, (ii) – P, (iii) – R, (iv) – Q

Question 42

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Match the following:

A	B
1. Drag	w. The friction that exists between a stationary object and the surface on which it is resting
2. Rolling friction	x. The frictional force exerted by fluids
3. Static friction	y. The resistance created by any two objects when sliding against each other
4. Sliding friction	z. The force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface

1 - x, 2 - z, 3 - w, 4 - y

1 - x, 2 - z, 3 - y, 4 - w

1 - z, 2 - x, 3 - w, 4 - y

1 - x, 2 - w, 3 - z, 4 - y

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NSO - Mock Test...

Question 1

Venus

Neptune

Jupiter

Uranus

Question 2

42

45

47

50

Question 3

DIJUBM

DIHSBM

DIHSZK

DIHUBK

Question 4

30

31

33

35

Question 5

Sesame

Barns

Clover

Trefoil

Question 6

Horticulture crops

Industrial crops

Plantation crops

Zaid crops

Question 7

Alga

Fungus

Bacterium

Virus

Question 8

All the multicellular organisms start their lives as a single cell.

Nucleolus is situated inside the nucleus.

Cell membrane is responsible for providing structure to a cell.

All of the above

Question 9

Ramie

Terylene

Vinyon

Linen

Question 10

Plastic is a poor conductor of electricity.

Plastic is a good conductor of heat.

Plastic is a good conductor of both heat and electricity.

Plastic is a poor conductor of both heat and electricity.

Question 11

Metals are lustrous.

Metalloids are not metallic in nature.

Non-metals do not form distinctly basic oxides.

Metals are of high density.

Question 12

Chlorine

Oxygen

Nitrogen

Sulphur

Question 13

Bitumen

Sulphur

Gasoline

Perfumes

Question 14

Ointments

Lubrication

Paints

Road surfacing

Question 15

Burns well, not with explosion

Has low smoke and ash content

Can't produce a large amount of heat

Ignites easily

Question 16

Weeds are the unwanted plants growing along crops.

Weeds share the nutrients meant for plants.

Weedicides are sprayed in the fields to kill the unwanted plants.