Chemical Engineering - Nuclear Power Engineering

21. 

H2 is a better coolant than CO2, due to its relatively

A. lower density.
B. higher specific heat.
C. non-reactivity to uranium.
D. lower neutron capture cross-section.

Answer: Option B

Explanation:

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22. 

The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.

A. 1/4
B. 1/8
C. 1/2
D. 1/16

Answer: Option D

Explanation:

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23. 

Nucleus of tritium has __________ neutrons.

A. 1
B. 2
C. 3
D. 5

Answer: Option B

Explanation:

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24. 

Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is

A. 0.1
B. 1
C. 3
D. 12

Answer: Option A

Explanation:

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25. 

A fast breeder reactor

A. utilises fast neutrons for causing fission.
B. converts fertile material (e.g., U-238) into fissile material (Pu-239).
C. normally employs molten sodium as coolant.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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