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Nuclear Power Engineering

Nuclear Power Engineering
The decrease in the atomic number is not observed in case of

Electron capture
Α-emission
Β-emission
Positron emission

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Nuclear Power Engineering
Thermal shield is used in high powered nuclear reactors to

Absorb the fast neutrons
Protect the walls of the reactor from radiation damage
Slow down the secondary neutrons
Protect the fuel element from coming in contact with the coolant

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Nuclear Power Engineering
Which of the following reactors is operated at high neutron flux and low power level?

Research reactor
Liquid metal (e.g., molten sodium) cooled reactor
Heterogeneous reactor
Breeder reactor

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Nuclear Power Engineering
Main source of __________ is monazite sand.

Uranium
Hafnium
Polonium
Thorium

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

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

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

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

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