MCQ OF SOURCES OF ENERGY, CLASS: X

SOURCES OF ENERGY

CLASS: X

1. Solar energy can be used to produce :

(A) electrical energy (B) heat energy (C) mechanical energy (D) all of the above (E) none of these

2. The energy processed by wind is :

(A) kinetic energy (B) potential energy (C) thermal energy (D) sound energy (E) none of these

3. The fuel used in a stream engine is :

(A) water (B) carbon monoxide (C) oxygen (D) none of these

4. A solar cell convert heat and light energy into :

(A) heat energy (B) sound energy (C) electrical energy (D) wind energy. (E) none of these

5. Biogas is a mixture of :

(A) Carbon monoxide , hydrogen gas and methane  (B) Carbon monoxide , hydrogen gas 

(C) Carbon dioxide , hydrogen gas and methane (D) none of these

6. The sources of energy which are being produced continuously in nature and are inexhaustible are called :

(A) conventional sources (B) non-conventional sources (C) non-renewable sources (D) none of these

7. Choose the source of energy which is different from others :

(A) Wood (B) Falling water (C) Wind (D) Petroleum (E) none of these

8. The vast amount of sea weeds present in oceans may provide an endless source of :

(A) hydro energy (B) ocean thermal energy (C) methane (D) none of these

9. Energy available from the oceans is :

(A) OTE (B) sea-waves energy (C) tidal energy (D) all of the above (E) none of these

10. Radiations used to get relief from bodyaches are :

(A) I.R.radiations (B) U.V. radiations (C) Visible radiations (D) None of these

11. Wood is a :

(A) primary fuel (B) liquid fuel (C) processed fuel (D) secondary fuel (E) none of these

12. Which of the following is as example of fossil fuel ?

(A) Coal gas (B) Coke (C) Natural gas (D) Producer gas (E) none of these

13. The device in which the nuclear fission and release of energy is controlled, is known as :

(A) Thermopile (B) Thermostat (C) Nuclear reactor (D) Cloud chamber (E) none of these

14. For a sustained chain reaction, the reproduction factor should be :

(A) 1 (B)  10  (C) infinite  (D)  none of these

15. Role of Moderator  in nuclear reactor for :

(A) slowing neutrons (B) accelerating neutrons (C) stopping neutrons (D) heating the neutrons (E) none of these

16. The fusion reaction occur at :

(A) low pressures (B) low temperature (C) extremely high temperature (D) high temperature and low pressures

17. The source of energy of the sun is :

(A) Nuclear fission (B) Chemical reaction (C) Nuclear fusion (D)  All of these  (E) None of these

18. The number of neutrons in an atom X of atomic number Z and mass number A is :-

(A) zero (B) Z (C) A - Z (D) A (E) none of these

19. When a beta particle is given out, the atomic number of the parent atom :

(A) Increase by unity (B) Decrease by unity (C) Remains the same (D) Is halved

20.. Which have least penetrating power ?

(A) Alpha particles (B) Gamma rays (C) Beta particles (D) All have the same penetrating power (E) none of these