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Nuclear Power Engineering

Nuclear Power Engineering
Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is

3
0.1
1
12

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Nuclear Power Engineering
A fast breeder reactor employs

U-235 as fuel
Water as coolant
Molten sodium as coolant as well as moderator
Graphite as moderator

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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
Carbon dioxide
Hydrogen

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Nuclear Power Engineering
'Heavy water' is termed as 'heavy' because it is

An oxide of deuterium
Denser than water
An oxide of heavier isotope of oxygen
A heavy liquid

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Nuclear Power Engineering
Use of molten metal as a coolant in fast breeder reactor helps in

Breeding neutrons
Accelerating the neutrons
Rapid heat transfer from the core
Accelerating the reaction rate in the core

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Nuclear Power Engineering
Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to

1 Angstrom
10⁻¹² cm
10⁻²⁴ cm²
10⁻²⁴ cm

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