General Science #1 MCQ

GENERAL SCIENCE #1 MCQ

1. What is the value of solar constant?

(a) 1.739 cal/cm²/min

(b) 1.379 cal/cm²/min

(c)  1.937 cal/cm²/min

(d) 9.137 cal/cm²/min

2. About how much is the maximum efficiency of a diesel engine?

(a) 70%

(b) 50%

(c) 30%

(d) 40%

3. What is the SI unit of energy?

(a) Newton

(b) Pascal

(c) Joule

(d) Watt

4. What is the freezing point of water on Fahrenheit scale?

(a) 100⁰C

(b) 0⁰C

(c) 32⁰F

(d) 0⁰F

5. How does an air bubble in water behave?

(a) Concave lens

(b) Plano-convex lens

(c) Convex lens

(d) Concave-convex lens

6. Which of the following process cannot be adiabatic?

(a) Suddenly burst of an air filled balloon

(b) Suddenly burst of CO₂ filled cylinder

(c) Propagation of longitudinal waves in air

(d) Freezing of ice

7. Who first introduced a simple pendulum?

(a) Galileo

(b) Alexander

(c) Newton

(d) Einstein

8. What is the Latin name of silver?

(a) Argentum

(b) Aurum

(c) Kalium

(d) Cuprum

9.  Which of the following is also called as Gelatin?

(a) Protective colloid

(b) Hydrophilic colloid

(c) Emulsion

(d) None of the above

10. What does Bohr’s model can explain?

(a) The solar spectrum

(b) Spectrum of atom or ion containing one electron only

(c) The spectrum of hydrogen atom only

(d)  The spectrum of hydrogen molecule

11. What is called a mixture which does not have a uniform composition throughout its mass?

(a) Homogeneous mixture

(b) Solution

(c) Heterogeneous mixture

(d) None of the above

12. How gases can be liquefied?

(a) By heating at very low temperature

(b) By heating at very high temperature

(c) By cooling under high pressure

(d) By cooling under low pressure

13. Which of the following gases is used in fire extinguishers?

(a) Helium

(b) Argon

(c) Carbon dioxide

(d) Hydrogen

14. Which of the following is a compound?

(a) Nitrogen gas

(b) Air

(c) A black solid residue left when sugar is heated

(d) Carbon dioxide

15. What is Rh in blood?

(a) Gene

(b) Hormone in body

(c) Antigen

(d) Antibody

16. Which of the following is a living thing?

(a) Hook

(b) Cook

(c) Cake

(d) Book

17. Why cells are autonomous?

(a) They synthesize components of living protoplasm from non-living materials

(b) Each cell has its own life span

(c) They are able to grow and divide

(d) All of the above

18. Which one of the following types of blood cells is responsible for together clotting of blood?

(a) Lymphocytes

(b) Monocytes

(c) Erythrocytes

(d) Thrombocytes

19. What is the total number of bones in a human being?

(a) 209

(b) 270

(c) 206

(d) 210

20. Which of the following is not required for photosynthesis?

(a) Oxygen

(b) Sunlight

(c) Water

(d) Carbon dioxide

 

Answers:

1. (c) 2. (d) 3. (c) 4. (c) 5. (a) 6. (d) 7. (a) 8. (a) 9. (a) 10. (b) 11. (c) 12. (b) 13. (c) 14. (d) 15. (c) 16. (b) 17. (d) 18. (d) 19. (c) 20.