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Nuclear Power Engineering

Nuclear Power Engineering
Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?

H₂
He
N₂
CO₂

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Nuclear Power Engineering
Which one is the radioactive isotope of hydrogen?

None of these
Ortho-hydrogen
Tritium
Deuterium

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Nuclear Power Engineering
Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.

> 1
1-25
> 200
< 0.025

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Nuclear Power Engineering
Nucleus of 92U235 contains __________ protons.

235
143
325
92

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Nuclear Power Engineering
The ratio of volume of an atom to that of its nucleus is

10⁸
10⁻⁸
10¹²
10⁻¹²

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Nuclear Power Engineering
Heavy water used in the nuclear reactors to slow down the speed of neutrons is

Water having dissolved salts of heavy metals
A compound of oxygen and deuterium
Highly purified water
None of these

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