Chemical Engineering - Nuclear Power Engineering

11. 

Nuclear reactors are provided with shield to guard against the emission of mainly __________ rays.

A. X
B. α and β
C. neutrons & gamma
D. infrared

Answer: Option C

Explanation:

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12. 

Mass of a positron is same as that of a/an

A. electron
B. α-particle
C. proton
D. neutron

Answer: Option A

Explanation:

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13. 

Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.

A. fuel elements
B. operating personnels
C. walls of the reactor
D. none of these

Answer: Option B

Explanation:

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14. 

Isotopes of an element have different

A. mass number
B. electronic configuration
C. nuclear charge
D. chemical properties

Answer: Option A

Explanation:

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15. 

Radioactive decay of a material involves a __________ order reaction.

A. third
B. second
C. first
D. zero

Answer: Option C

Explanation:

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