Chemical Engineering - Nuclear Power Engineering

36. 

Which of the following accounts for the maximum energy release in the nuclear fission process ?

A. Kinetic energy of fission products
B. Radioactive decay of fission products
C. Instantaneous release of γ-rays
D. Kinetic energy of neutrons

Answer: Option A

Explanation:

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37. 

In a pressurised water reactor (PWR), the

A. fuel is natural uranium and heavy water acts both as moderator & coolant.
B. coolant water boils in the core of the reactor.
C. coolant water is pressurised to prevent bulk boiling of water in the core.
D. use of moderator is not required.

Answer: Option C

Explanation:

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38. 

Liquid metal (e.g, . molten sodium) is preferred as a coolant in case of a/an __________ reactor.

A. homogeneous
B. graphite moderated
C. fast breeder
D. enriched uranium (3% U-235) fuelled

Answer: Option C

Explanation:

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39. 

Coolant used in a boiling water reactor is

A. hydrogen gas
B. water
C. steam
D. a mixture of water & steam

Answer: Option D

Explanation:

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40. 

A thermal nuclear reactor compared to a fast breeder reactor

A. uses slower neutrons for fission.
B. uses faster neutrons for fission.
C. gives higher power density.
D. requires less fuel to run at the same power level.

Answer: Option A

Explanation:

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