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Nuclear Power Engineering

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
Uranium percentage in monazite sand is about

0.01
7
0.25
1.2

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Nuclear Power Engineering
The disintegration rate of a radioactive element

May increase or decrease depending on the material
Progressively increases
Remains constant throughout
Progressively decreases

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

CO₂
He
N₂
H₂

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Nuclear Power Engineering
The atomic number of a radioactive element is not changed, when it emits __________ rays.

α & β
α
γ
β

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Nuclear Power Engineering
'Light water' used as a coolant in nuclear reactor is nothing but

Mildly acidic (pH = 6) water
Ordinary water
Mildly alkaline (pH = 8) water
None of these

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