Chemical Engineering - Nuclear Power Engineering

6. 

Which is the most commonly used molten metal for cooling of nuclear reactors ?

A. Calcium
B. Sodium
C. Mercury
D. Zinc

Answer: Option B

Explanation:

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7. 

The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.

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

Answer: Option D

Explanation:

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8. 

The second underground nuclear test was conducted by India at

A. Jaisalmer
B. Pokhran
C. Kalpakkan
D. Narora

Answer: Option B

Explanation:

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9. 

Which of the following is artificially produced as it does not occur in nature ?

A. Uranium-235
B. Uranium-233
C. Plutonium-239
D. Both (b) and (c)

Answer: Option D

Explanation:

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10. 

Gas cooling as compared to water cooling of nuclear reactors

A. can not attain a high temperature.
B. is more efficient as gas has a higher specific heat.
C. can produce only saturated steam for feeding to power turbine.
D. none of these.

Answer: Option D

Explanation:

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