Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactors?
A. Nitrogen
B. Helium
C. Carbon dioxide
D. Hydrogen
Answer: Option A
This Question Belongs to Metallurgical Engineering >> Metallurgy Of Nuclear Metals
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An ideal coolant for a nuclear reactor should be
A. a good absorber of neutrons
B. capable of attaining high temperature, only when it is pressurised
C. of high density, but of low heat transfer coefficient
D. free from radiation damage & non-corrosive
Decay product of tritium which is a Beta emitter is
A. hydrogen
B. helium
C. deuterium
D. none of these
The function of moderators in nuclear reactor is to
A. slow down the secondary neutrons
B. absorb the secondary neutrons
C. control the chain reaction
D. none of these
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