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Nuclear Power Engineering

Nuclear Power Engineering
Which is used as a coolant in nuclear reactor due to its high capture cross-section?

N₂
CO₂
He
H₂

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Nuclear Power Engineering
Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.

99.29
6.31
12.73
0.71

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Nuclear Power Engineering
The critical mass of a fissionable material can be reduced by

Heating it
Surrounding it by neutron absorbing material
Cooling it
Surrounding it by neutron reflecting material

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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 atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?

A+Z
Z
A- Z
A

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Nuclear Power Engineering
In β-decay of radioactive material, the ratio of neutron to proton

Increases
Is unpredictable; may increase or decrease
Remains same
Decreases

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