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.

Dodder leaves and stems are

A. leaves
B. chlorophyll
C. fungi
D. bacteria
Answer» C. fungi
2.

Sewage discharge into lakes or streams can be a big threat for

A. marine life
B. birds
C. animals
D. bacteria
Answer» B. birds
3.

A system in which exchange takes place between living and non-living things is known as

A. cycle
B. computer system
C. ecosystem
D. none of them
Answer» D. none of them
4.

Organism s in the rainforest maybe

A. mammals
B. rodents
C. birds
D. all of them
Answer» E.
5.

Ammonia is a colorless inorganic compound of nitrogen and

A. oxygen
B. nitrogen
C. helium
D. hydrogen
Answer» E.
6.

Substance that is unable to dissolve in the solvent is known as

A. insoluble
B. solute
C. solvent
D. soluble
Answer» B. solute
7.

A molecule made up of carbon and hydrogen is

A. methane
B. water
C. sodium chloride
D. carbon dioxide
Answer» B. water
8.

Metals are ductile, which means

A. can be drawn into waves
B. can be drawn into position
C. can be drawn into wires
D. can be drawn into shape
Answer» D. can be drawn into shape
9.

The molecular formula for water is

A. H2O
B. CO2
C. NaCl
D. NaHCO3
Answer» B. CO2
10.

Animals and plants living together in a habitat form a

A. population
B. community
C. crowd
D. style
Answer» C. crowd
11.

Light, temperature, air, water and land are part of

A. life
B. habitat
C. physical environment
D. style
Answer» D. style
12.

When dead decaying organisms are decomposed, their left overs are called

A. bacteria
B. humus
C. salt
D. fungi
Answer» C. salt
13.

All living things need food from their

A. neighbors
B. environment
C. status
D. weather
Answer» C. status
14.

Beef tapeworm is the most common

A. herb
B. Internal parasite
C. external parasite
D. pesticide
Answer» C. external parasite
15.

Animals which are active in night time are called

A. wild animals
B. pets
C. nocturnal animals
D. tame animals
Answer» D. tame animals
16.

Dolphins and Whales are included in

A. fish
B. amphibians
C. reptiles
D. mammals
Answer» E.
17.

An animal which hunt down another animal for its food is called a

A. hunter
B. predator
C. prey
D. producer
Answer» C. prey
18.

Shallow roots obtain water by spreading to

A. larger surface area
B. reach ground
C. touch stones
D. absorb sand
Answer» B. reach ground
19.

Ferns, orchids, ants, birds, fungi and microorganisms reside in a tree hence tree is their

A. home
B. shelter
C. nest
D. habitat
Answer» E.
20.

A twisting thread like structure of a twining plant by which it attaches itself to object for support is

A. roots and stem
B. clasping roots
C. tendrils
D. leaves
Answer» D. leaves
21.

When fish is not swimming the swim bladder is filled with

A. air
B. food
C. water
D. salts
Answer» B. food
22.

The adaptations in fish includes

A. fins
B. streamlined body
C. both a and b
D. gills
Answer» D. gills
23.

Any alteration in the structure or function of an organism or its parts which results from natural selection so as the organism becomes more comfortable in new environment is called

A. adaptation
B. evolution
C. resolution
D. habitant
Answer» B. evolution
24.

The adaptations of polar bear are

A. thick fur
B. thick skin
C. small ears and tail
D. all of them
Answer» E.
25.

Other than the front liquid in the eye, the rest of the eye is filled with a jelly-like liquid known as

A. aqueous humour
B. sclerotic
C. choroid
D. vitreous humour
Answer» E.
26.

The outer white coat of the eyeball is known as

A. sclera
B. choroid
C. vitreous humour
D. pupil
Answer» B. choroid
27.

The cavity containing eyeball is known as

A. packet
B. socket
C. duct
D. Chanel
Answer» C. duct
28.

The liquid present in front part of the eye is known as

A. yellow spot
B. aqueous humour
C. blind spot
D. optic nerve
Answer» C. blind spot
29.

The fluid tubes that help in balance are known as

A. Semicircular canals
B. pinna
C. eardrum
D. cochlea
Answer» B. pinna
30.

The changes occur in egg after heating process are

A. reversible
B. irreversible
C. same
D. constant
Answer» C. same
31.

When a material is burnt it forms new material by using gas from atmosphere called

A. oxygen
B. nitrogen
C. carbonmono oxide
D. carbon dioxide
Answer» B. nitrogen
32.

The changes which cannot be returned back to their original products are

A. reversible
B. irreversible
C. same
D. constant
Answer» C. same
33.

In athlete's foot the skin of person is itchy and

A. flaky
B. spotted
C. pigmented
D. rosy
Answer» B. spotted
34.

Food poisoning occurs due to eating

A. contaminated food
B. spoilt food
C. both a and b
D. fresh vegetables
Answer» D. fresh vegetables
35.

Microorganisms can cause humans to

A. fall sick
B. die
C. decay
D. develop
Answer» B. die
36.

Different types of cheese are prepared by different kinds of

A. virus
B. bacteria
C. fungi
D. moulds
Answer» E.
37.

Some infections on human body is also caused by

A. yeast
B. fungus
C. virus
D. bacteria
Answer» B. fungus
38.

Hydrogen, helium, carbon, nitrogen are examples of

A. solid
B. metal
C. non-elastic
D. non-metal
Answer» E.
39.

The most important use of Sulphur is in the manufacture of

A. lactic acid
B. sulfuric acid
C. nitric acid
D. carbonic acid
Answer» C. nitric acid
40.

This is a silvery-white, lightweight metal, it is soft and malleable and is called

A. gold
B. aluminum
C. steel
D. iron
Answer» C. steel
41.

Gas used in electrical generators as a rotor coolant is

A. nitrogen
B. carbon
C. hydrogen
D. oxygen
Answer» D. oxygen
42.

In first stage, crude oil is heated and changed into

A. plasma
B. gas
C. solid
D. liquid
Answer» C. solid
43.

The different types of forces which includes

A. gravitational force
B. frictional force
C. magnetic force
D. all of them
Answer» E.
44.

When two magnets are placed together with like poles they will

A. attract
B. repel
C. both attract and repel
D. rotate
Answer» C. both attract and repel
45.

Magnets will attract each other if they are facing each other with

A. like poles
B. unlike poles
C. S-S poles
D. N-N poles
Answer» C. S-S poles
46.

Magnetic force can act from a

A. distance
B. time
C. place
D. center
Answer» B. time
47.

The mass of object will remain same on moon and the weight will be

A. same too
B. different
C. equal
D. decrease
Answer» E.
48.

Gold is a good conductor of

A. heat
B. electricity
C. heat and electricity
D. none of them
Answer» D. none of them
49.

The chemical symbol for Sulphur is

A. S
B. Co2
C. Cl
D. Cn
Answer» B. Co2
50.

We breathe a gas. This gas is

A. hydrogen
B. oxygen
C. nitrogen
D. helium
Answer» C. nitrogen