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Nuclear Power Engineering

Nuclear Power Engineering
Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.

Either more or less
More than
Equal to
Less than

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Nuclear Power Engineering
75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.

43894
43836
3
4

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Nuclear Power Engineering
Which of the following is a moderating material used in nuclear reactor?

Zircalloy (an alloy of zirconium and aluminium)
Stainless steel
Cadmium
Graphite

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Nuclear Power Engineering
Coolant used in a boiling water reactor is

Steam
Water
A mixture of water & steam
Hydrogen gas

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Nuclear Power Engineering
Extraction of uranium from its ore is done using __________ methods.

Pyrometallurgical
Chemical
Physical beneficiation
Electrometallurgical

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

Electron capture
Α-emission
Positron emission
Β-emission

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