Chemical Engineering - Nuclear Power Engineering

11. 

Which of the following isotopes is not present in natural uranium ?

A. U-238
B. U-234
C. U-235
D. U-232

Answer: Option D

Explanation:

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12. 

Which of the following is present in Bhabha Atomic Research Centre (BARC) complex, Trombay (Bombay) ?

A. Power reactor
B. Research reactor
C. Fast breeder reactor
D. Heavy water plant

Answer: Option B

Explanation:

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13. 

Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.

A. 0.71
B. 6.31
C. 99.29
D. 12.73

Answer: Option A

Explanation:

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14. 

Pick out the correct statement.

A. Loss of electrons from neutral atoms produces negative ions.
B. The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively.
C. Gain of electrons by neutral atoms form cations.
D. Proton to neutron ratio in a stable nucleus is 2 : 1.

Answer: Option B

Explanation:

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15. 

__________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section.

A. Nitrogen
B. Hydrogen
C. Helium
D. Carbon dioxide

Answer: Option A

Explanation:

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