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Nuclear Power Engineering

Nuclear Power Engineering
Neutrons have mass approximately equal to that of __________ atoms.

Helium
Deuterium
Hydrogen
None of these

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Nuclear Power Engineering
Indian monazite sand contains __________ percent thorium.

10
60
25
90

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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
43838
43834
43832

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Nuclear Power Engineering
A radioactive substance does not emit

Β-ray
Position
Α-ray
Proton

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Nuclear Power Engineering
The main ore of thorium is

Galena
Limonite
Monazite sand
Pitchblende

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Nuclear Power Engineering
Heavy water is preferred over ordinary water as a coolant, because it.

Can be heated to a higher temperature without pressurizing
All of these
Acts both as an efficient coolant as well as a moderator
Is less prone to radiation damage

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