General Science MCQs Part III

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General Science MCQs Part III

1 Which planet of the Solar System has longest day?


2 Quinine, the drug that is used to fight Malaria is obtained from the tree known as


3 The bright star nearest to the Solar System (or earth) is

Proxima Centuri

4 According to latest research, the universe is


5 The theory known as ‘‘Laws of Planetary Motions’’ was propounded by


6 The volume of Sun is about 13,000,000 times that of


7 The depth of ocean is measured by using

Ultrasonic sound waves

8 The size of icebergs varies but only one thing is common to all. Only a __________ part of an iceberg remains above the sea-level.


9 Earth’s axis always point in the same direction, towards the


10 When water vapours comes into contact with the earth vegetation, it leaves drops of water on its leaves. What is it called?


11 Why desert plants have thorns?

To discourage their being eaten up by animals

12 Smoke is the result of

Incomplete combustion

13 Mesons, particles of an atom, are now known to carry

Either charge

14 What is radium?

A radioactive element

15 The velocity of light is

299,782 KM/Sec

16 Astigmatism is corrected with the help of

Cylindrical lenses

17 The vitamin associated with rickets is

Vitamin D

18 The relation between pressure and temperature at constant volume is verified by

Pressure law

19 Legumes, such as clover, restore to the soil compound of


20 Patella is anatomical name of

Knee bone


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21 Transformer is not an amplifier because of

No power gain

22 The essential difference between an A.C dynamo and a D.C dynamo is that

A.C has slip rings but D.C has a commutator

23 Two objects that lose the same weight in water must have the same


24 The name of Madam Curie is associated with the discovery of


25 What is the speed of sound under normal conditions?

1100 feet per second (750 miles per hour)

26 Petrol and Diesel are the examples of

Potential energy

27 An allergy is

An excessive sensitiveness to some food or substances

28 Penicillin was discovered by

Alexander Fleming

29 When a body is thrown upwards, its velocity goes on


30 A rodent is an animal that has

Long sharp front teeth

31 The only mammal that can fly is


32 Theory of relativity was propounded by

Alfred Einstein

33 A glass tumber breaks when hot liquid is suddenly poured into it because of

Uneven expansion

34 The blood cells that supply oxygen to cell are

Red Blood Cells

35 The common name of clavicle bone is

Collar bone

36 Dynamite was discovered by

Alfred Nobel

37 The instrument used for recording the character and movement if heart is


38 A person faint on account of

Insufficient supply of blood to the brain

39 Escape Velocity is the speed that a space satellite must attain to escape from the

Earth’s gravitational field

40 Soap helps in cleaning clothes because

It lowers the surface tension of the solution

41 Which one of the following is important for the normal functioning of plant cell?


42 The purpose of a filament in radio tube is to

Emit electrons

43 The thin epithelium which lines the inside of the eyelids and continues across the front of the eyeball, where it is transparent is called


44 The release of energy from food material by a process of chemical reaction which does not require oxygen is called

Anaerobic respiration

45 The release of energy from food material by a process of chemical reaction which requires oxygen is called

Aerobic respiration

46 The rate of change of distance moved with time is called


47 The canal rays are

A stream of positively charged particles

48 As the number of micro-organisms in a soil increases, the amount of humus in the soil


49 The two testes, which are the male reproduction organs, lie outside the abdominal cavity, in a special sac called


50 A membrane of skin and fine fibres is stretched across the innermost end of the outer ear, closing it off completely. This membrane is called

Oval window

51 The blood plasma from which the fibrinogen has been removed is called


52 As pressure is applied to ice, the melting point of the ice is


53 Compared to the object, real images formed by a lens are always


54 Crescograph was invented by

J.C. Bose

55 Asthma is disease of


56 The smallest particle of an element that exhibits all the properties of the element is


57 The science of predicting the human destines as influenced and conditioned by the positions and movements of stars is


58 Critical mass is

The minimum amount of fissile material required in a nuclear reactor

59 The birth place of human blood cells is

Bone marrow

60 Kohoutek is the

Newly discovered comet

61 Water can be made to boil without heating it, if the pressure acting on it is

Considerably decreased

62 The element that is most useful to man to reach the present stage of civilization is


63 The three sensations that buds of tongue gives us are

Bitter, Salt, Sweet

64 Absolute Zero is a temperature of

– 273 C

65 The highest and lowest temperature that a Mercury thermometer can record is

357 C and 39 C

66 Astigmatism is a defect of the

Eyes or an eye lens

67 Newton is known for his researches on

Laws of gravitation

68 Malthus propounded the celebrated theory of


69 Name the scientist whose Quantum theory form the basis of modern physics.

Max Planck

70 The energy that travels along a telephone line is

Electrical energy

71 Digested food in the blood is carried by the


72 The percent of glucose present in normal urine is

Zero (0%)

73 Motorists may use a mixture of alcohol and water in automobile cooling system because the mixture has a low

Freezing temperature

74 If two parallel lines carry current in the same direction, then they

Attract one another

75 Streptomycin is an example of


76 A plant’s system to raise water up is least affected by the

Thickness of its bark

77 The scientist who discovered neutrons was


78 Temporary magnets are made of

Soft Iron

79 Tubercle bacilli were isolated by

Robert Koch

80 The device to record and then reproduce the dictation taken is


81 A constellation is

A group of fixed stars

82 How many constellations are known so far?

Eighty Eight (88)

83 The scientific device used for the measurement of intensity of light is


84 Blue Giants are

Bright extremely hot galaxies believed to be on the outer limits of the universe

85 Sphygmomanometer is an instrument used for

Measuring blood pressure

86 Pisciculture is the art of

Artificial rearing of fish

87 Hypsometer is the device for measuring

The height above the sea-level

88 Barometer is an instrument used for measuring

Atmospheric pressure

89 Mechanic, the branch of Physics, is connected with

Action of forces upon bodies

90 Low atmospheric pressure forecasts


91 How much water, of its size, expanded when converted from liquid to solid?


92 The separation of white light into its component colours is called


93 Sounds above the frequency of 20,000 Hz is called


94 Structure responsible for energy in cell is


95 Mitochondria is also called

Power house of the cell

96 The actual number of White Blood Cells in the blood varies between

4000 to 13,000/mm3

97 Chief food of a male mosquito is

Nectar and fruit juices

98 When a person has appendicitis, his blood shows an increase in the number of

White corpuscles

99 After vaccination, the body builds up


100 Proteins are made of

Amino acids



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