General Science #7 Multiple Choice Questions

GENERAL SCIENCE #7

MULTIPLE CHOICE QUESTIONSGeneral Science, Multiple Choice Question (MCQ), Assam Jobs Guide

1. A rocket or a jet engine works on the principle of which of the following?

(a) Conservation of mass

(b) Conservation of momentum

(c) Newton’s second law of motion

(d) Conservation of energy

Answer: (b)

2. What is the SI unit of power?

(a) Kelvin

(b) Watt

(c) Coulomb

(d) Joule

Answer: (b)

3. A body at rest can have which of the following?

(a) Velocity

(b) Momentum

(c) Speed

(d) Energy

Answer: (d)

4. Which law of motion is called ‘law of inertia’?

(a) Newton’s first law of motion

(b) Newton’s second law of motion

(c) Newton’s third law of motion

(d) None of the above

Answer: (a)

5. Newton’s second law of motion gives the measure of which of the following?

(a) Force

(b) Impulse

(c) Acceleration

(d) Momentum

Answer: (a)

6. What is the SI unit of pressure?

(a) N/m2 or Pascal

(b) Ampere

(c) Joule

(d) Kelvin

Answer: (a)

7. Joule is the SI unit of which of the following?

(a) Momentum

(b) Work

(c) Force

(d) Power

Answer: (b)

8. Which is the lightest element?

(a) Hydrogen

(b) Mercury

(c) Nitrogen

(d) Oxygen

Answer: (a)

9. Which metal exists in liquid state at room temperature?

(a) Iodine

(b) Mercury

(c) Chlorine

(d) Bromine

Answer: (b)

10. An element is made up of atoms, all having the ……….

(a) very high actual masses

(b) same atomic number

(c) different atomic number

(d) sometimes different sometimes same atomic number

Answer: (b)

11. How many elements are present in nature?

(a) 25

(b) 92

(c) 250

(d) 117

Answer: (b)

12. Which of the following sentences is correct?

(a) Air is a compound

(b) Liquid air does not have a fixed boiling point

(c) Air is a mixture

(d) Both ‘b’ and ‘c’

Answer: (d)

13. Which of the following element has lowest conductance of heat?

(a) Sodium

(b) Mercury

(c) Lead

(d) Zinc

Answer: (a)

14. Which of the following is the best conductor of electricity?

(a) Platinum

(b) Silver

(c) Copper

(d) Diamond

Answer: (b)

15. Which of the following animals has the heaviest heart?

(a) Cow

(b) Dog

(c) Horse

(d) Sheep

Answer: (c)

16. Which of the following human organs is least susceptible to harmful radiations?

(a) Brain

(b) Lungs

(c) Heart

(d) Eyes

Answer: (a)

17. Kidney is a part of which of the following?

(a) Skeleton system

(b) Nervous system

(c) Digestive system

(d) Excretory system

Answer: (d)

18. The normal blood pressure of human beings is in which of the following ranges?

(a) 110/70 mm

(b) 130/70 mm

(c) 120/80 mm

(d) 100/80 mm

Answer: (c)

19. Which of the following does not contain carbohydrates?

(a) Wax

(b) Starch

(c) Cellulose

(d) Wheat flour

Answer: (a)

20. Which of the following body organ is not present in pair?

(a) Ovary

(b) Kidney

(c) Testes

(d) Heart

Answer: (d)


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