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Nuclear Power Engineering

Nuclear Power Engineering
Coolant used in a fast breeder reactor is

Ordinary water
Helium
Molten sodium
Heavy water

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Nuclear Power Engineering
The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.

43846
43832
43838
43834

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Nuclear Power Engineering
Uranium percentage in monazite sand is about

1.2
7
0.01
0.25

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Nuclear Power Engineering
Radioactive decay is a __________ change.

None of these
Nuclear
Chemical
Physical

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Nuclear Power Engineering
The specific heats of three gaseous coolants namely H₂, He and CO₂ in the increasing order are

H₂, He, CO₂
H₂, CO₂, He
CO₂, He, H₂
CO₂, H₂, He

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

Helium
Nitrogen
Hydrogen
Carbon dioxide

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