GENERAL SCIENCE QUIZ with 50 MCQs SET-11

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1. How many red blood cells does the bone marrow produce every second?

7 million

10 million

5 million

12 million

2. In the visible spectrum, the colour having the shortest wavelength is

Green

Violet

Yellow

Blue

3. Primitive man first learnt

To tame animals

To grow grain

To make fire

To make a wheel

4. What is the instrument that determines specific gravity of liquids?

Hydrometer

Gravimeter

Hypsometer

Hygrometer

5. A man weighing 65 kg jumps from a 100 ft high building with a load of 35 kg. What wlii be the load experienced by him?

100 kg

20 kg

Zero

200 kg

6. The blue colour of the water in the sea is due to

Reflection of blue sky by the sea water

Absorption of other colors except the blue colour by water molecules

Refraction of the blue light by the impurities in sea water

Scattering of blue light by water molecules

7. “RH” factor is a term that we hear in connection with

Air Pressure

Blood Pressure

Space Travel

Blood Transfusion

8.

Increases

Decreases

Remains unchanged

May decrease or increase

9. In which season do we need more fat?

Winter

Spring

Rainy season

Summer

10. Which of the following causes Poliomyelitis?

Enterovirus

Dengue virus

Rhabdovirus

Mumps virus

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11. The image formed on the retina of the eye is

Real and Inverted

Upright and Real

Virtual and Upright

Enlarged and Real

12. Toxin is a poisonous substance produce by

All of the above

Pathogenic bacteria

Certain animals

Some higher plants

13. Food is cooked in a pressure cooker quickly because

Boiling point of water increases

Boiling point of water decreases

It absorbs heat quickly

It retains heat for a longer duration

14. The branch of Science which shows inter-relationship of living organism and their environment is

Genetics

Anatomy

Ecology

Cell Biology

15. The oil in the wick of a lamp rises up due to

Capillary action

Low viscosity of oil

Gravitational force

Pressure difference

16. For seeing objects at the surface of water from a submarine under water, the instrument used is

Periscope

Telescope

Spectroscope

Kaleidoscope

17. Deforestation in the uplands may cause pollution in rivers through

Erosion and silting

Leaching of salts

Inflow of forest material

Increased discharge rate

18. The 23½° South latitude is known as

The Tropic of Capricorn

The Prime Meridian

The Equator

The Tropic of Cancer

19. The universal law of gravitation was propounded by

Newton

Galileo

Copernicus

Kepler

20. Ecology deals with

Cell formation

Birds

Tissues

Relation between organisms and their environment

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21. The sky appears blue because

All colors interface to produce blue

The atmosphere scatters blue light more than the others

In white light, blue colour dominates

It is actually blue

22. A glass tumbler containing ice shows droplets of water on the outer surface because

The moisture in the air on coming in contact with the cold surface of the tumbler condenses in the form of droplets of water

Water from inside oozes out through minute porous wall of the tumbler

The outer surface of the tumbler shows hygroscopic effect

None of these

23. A thick glass tumbler cracks more easily than a thin one when hot water is poured into it. Why?

Thick glass is of inferior quality.

The outer surface of the tumbler expands more than its inner surface.

The inner surface of the tumbler expands more than its outer surface.

Thick glass is more brittle than thin glass.

24. The range of R.B.C to W.B.C in the human body is

1 : 500

15 : 500

10 : 500

5 : 500

GENERAL SCIENCE QUIZ with 50 MCQs SET-11

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