1. Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission?

(a) Boron
(b) Heavy water
(c) Uranium
(d) Plutonium

2. Hydrogen bomb is based on the principle of

(a) controlled fission reaction
(b) uncontrolled fission reaction
(c) controlled fusion reaction
(d) uncontrolled fusion reaction

3. Troposphere is the hottest part of the atmosphere because

(a) it is closest to the Sun
(b) there are charged particles in it
(c) it is heated by the Earth’s surface
(d) heat is generated in it

4. The outermost layer of the Sun is called

(a) Chromosphere
(b) Photosphere
(c) Corona
(d) Lithosphere

5. Where was India’s computer installed?

(a) Indian Institute of Technology, Delhi
(b) Indian Institute of Science, Bangalore
(c) Indian Iron & Steel Co. Ltd., Burnpur
(d) Indian Statistical Institute, Calcutta

Printed Study Kit for SSC CHSL (10+2) Exam

एसएससी CHSL(10+2) परीक्षा ​​अध्ययन सामग्री

Answer:
1. (d) 2. (d) 3. (c) 4. (c) 5. (d)