Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

A region of darkness which is formed when the path of light is blocked is called

A. shadow
B. opaque image
C. inverted picture
D. pinhole
Answer» B. opaque image
2.

Non-parallel rays of light will produce

A. converging rays
B. diverging rays
C. reflected rays
D. all of them
Answer» E.
3.

A form of energy which can be detected by our eyes is

A. heat
B. light
C. force
D. electric current
Answer» C. force
4.

The materials which allow all light to pass through them are called

A. transparent
B. translucent
C. opaque
D. semi-absorbent
Answer» B. translucent
5.

The change in a direction or bending of light when it is travelling from one transparent medium to another medium is called

A. reflection
B. refraction
C. transmission
D. incident
Answer» C. transmission
6.

An Antarctic ice fish has specialized feature which enables it to withstand sub-freezing temperatures which is

A. anti-freeze protein
B. hemoglobin
C. chlorophyll
D. amino-acids
Answer» B. hemoglobin
7.

Some predators and prey use technique to hide themselves called

A. camouflage
B. mimicry
C. inflating
D. blending
Answer» B. mimicry
8.

Bats can hunt in dark by help of their

A. wings
B. eyes
C. long ears
D. vibrations
Answer» D. vibrations
9.

Pompeii can withstand temperatures up to

A. 80 °C
B. 50 °C
C. 20 °C
D. 10 °C
Answer» B. 50 °C
10.

Marine organism survive in the pH of

A. 2
B. 7
C. 8
D. 5
Answer» D. 5
11.

Colorado river moving through layers of sandstone, shale and limestone after million years have formed

A. statues
B. canyon
C. pyramid
D. wall of China
Answer» C. pyramid
12.

Granite chip on exposure to extreme temperature will be

A. broken
B. stronger
C. weaker
D. stable
Answer» B. stronger
13.

Repetition in expansion and contractions in rocks give rise to

A. stress
B. heat
C. volume
D. force
Answer» B. heat
14.

While transportation sediments are sorted according to their

A. size
B. volume
C. color
D. chemical properties
Answer» B. volume
15.

Sedimentary layers over a period of time are compacted and cemented to form

A. sedimentary rocks
B. mountains
C. deserts
D. hills
Answer» B. mountains
16.

A muscular organ which walls secretes gastric juice is

A. stomach
B. esophagus
C. rectum
D. esophagus
Answer» B. esophagus
17.

Large fat droplets are broken down in to smaller droplets by help of

A. proteases
B. bile
C. amylase
D. gastric juice
Answer» C. amylase
18.

When food leaves the stomach it is termed as

A. bolus
B. chyme
C. waste material
D. ammonia
Answer» C. waste material
19.

Vitamin A, D,E and K are stored in

A. fat tissue
B. nerve cells
C. epidermal cells
D. muscular cells
Answer» B. nerve cells
20.

To regulate fluids in our body we need

A. sodium
B. iodine
C. iron
D. calcium
Answer» B. iodine
21.

The state of organism by being inactive or dormant during hot and dry period is called

A. activation
B. adaptation
C. aestivation
D. deactivation
Answer» D. deactivation
22.

Bats, owls and fireflies are active at night and called as

A. wild animals
B. nocturnal animals
C. pets
D. smart animals
Answer» C. pets
23.

Animal which can survive without drinking water for weeks in deserts is

A. camel
B. horse
C. lion
D. elephant
Answer» B. horse
24.

Many populations which are living together in a particular habitat is called

A. community
B. diversity
C. biodiversity
D. environment
Answer» B. diversity
25.

Lionesses always hunt together to increase chances of getting

A. prey
B. compete
C. co-operate
D. fight
Answer» B. compete
26.

A frilled lizard threaten by

A. flaring
B. mimicry
C. inflating
D. blending
Answer» B. mimicry
27.

Type of symbiosis which involves two kinds of specie the parasite and host is called

A. symbiosis
B. mutualism
C. parasitism
D. food chain
Answer» D. food chain
28.

Seaweed belong to community of

A. garden
B. field
C. seashore
D. city
Answer» D. city
29.

In deserts plants prevent loss of water by turning leaves in to

A. spines
B. succulent thick leaves
C. both a and b
D. wither
Answer» D. wither
30.

A place which is a natural home to animals is called

A. diversity
B. biodiversity
C. habitat
D. population
Answer» D. population
31.

Water expansion occurs when

A. freezing
B. heating
C. both a and b
D. boiling
Answer» B. heating
32.

After cooling bimetallic strip bends

A. upwards
B. downwards
C. straight
D. inside
Answer» B. downwards
33.

The gain or loss of heat affect the state of

A. matter
B. conduction
C. convection
D. radiation
Answer» B. conduction
34.

On heating the particles of substance expand due to

A. get bigger
B. vibrate faster
C. increase in shape
D. Increase in volume
Answer» C. increase in shape
35.

A form of energy which flows from hotter region towards cooler region n reach on same temperature is called

A. conduction
B. convection
C. radiation
D. heat
Answer» E.
36.

Metamorphic rocks become magma on melting at high

A. temperatures
B. pressures
C. densities
D. energies
Answer» B. pressures
37.

Magma which flows out to the surface of Earth during a volcanic eruption is called

A. lava
B. magma
C. volcano
D. molten rock
Answer» B. magma
38.

After eruption of lava a type of rock is obtained called

A. lava rock
B. magma rock
C. volcanic rock
D. molten rock
Answer» D. molten rock
39.

The rocks which are non-interlocking and porous are

A. sedimentary rocks
B. metamorphic rocks
C. igneous rocks
D. morphic rocks
Answer» B. metamorphic rocks
40.

A glassy rock having no crystals formed due to less time given is called

A. obsidian
B. pumice
C. basalt
D. granite
Answer» B. pumice
41.

The carbon dioxide which is present in air produces weak acid in rain called

A. carbonic acid
B. sulphuric acid
C. acetic acid
D. oxalic acid
Answer» B. sulphuric acid
42.

The top of mountains at night time are

A. hot
B. cold
C. mild
D. temperate
Answer» C. mild
43.

Weathering and erosion both alter its

A. shape
B. size
C. volume
D. landforms
Answer» E.
44.

Water expands on

A. room temperature
B. boiling
C. freezing
D. flowing
Answer» D. flowing
45.

Different appearance of each layer is due to different type of

A. sediments
B. minerals
C. rain water
D. weathering
Answer» B. minerals
46.

Fireflies attract mates by producing

A. light
B. heat
C. energy
D. food
Answer» B. heat
47.

Scavengers feed on

A. plants
B. animals
C. birds
D. dead animals
Answer» E.
48.

Animals ensure their species survival by

A. compete
B. co-operate
C. hunt
D. fight
Answer» C. hunt
49.

Organisms which feed on plants and animals both are called

A. herbivores
B. carnivores
C. omnivores
D. ovivores
Answer» D. ovivores
50.

Hydrangea gives of flower in acidic soil with color

A. pink
B. blue
C. yellow
D. white
Answer» C. yellow