Chemical Engineering - Nuclear Power Engineering

31. 

Which of the following is not, a fertile material ?

A. Th-232
B. U-238
C. U-233
D. none of these

Answer: Option C

Explanation:

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32. 

Molten sodium (as a coolant in fast breeder reactor)

A. can't attain high temperature at normal pressure.
B. is not at all corrosive, even at a higher temperature.
C. is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water.
D. none of these

Answer: Option C

Explanation:

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33. 

Final product of uranium extraction plant at Jadugoda (Bihar) is

A. uranium
B. uranium oxide
C. uranium carbide
D. magnesium diuranate

Answer: Option D

Explanation:

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34. 

Which one is the radioactive isotope of hydrogen ?

A. Deuterium
B. Ortho-hydrogen
C. Tritium
D. None of these

Answer: Option C

Explanation:

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35. 

A homogeneous reactor is the one, in which the

A. fissile atoms are evenly distributed throughout the mass of nuclear reactor.
B. same substance (e.g. heavy water) is used as moderator & coolant.
C. the fuel and the moderator is mixed to form a homogeneous material.
D. all (a), (b) and (c).

Answer: Option C

Explanation:

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