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Nuclear Power Engineering

Nuclear Power Engineering
Which of the following may be used to measure the rate of nuclear disintegration?

Mass spectrograph
Cold chamber
Cyclotron
Geiger-Muller Counter

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Nuclear Power Engineering
Heavy water is used as a moderator in a

Molten sodium cooled reactor
Candu reactor
Pressurised water reactor (PWR)
Boiling water reactor (BWR)

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Nuclear Power Engineering
The mass number of an element is equal to the number of __________ in the nucleus.

Protons
Neutrons plus protons (i.e., nucleons)
Electrons
Neutrons

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Nuclear Power Engineering
Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent.

32
88
52
72

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Nuclear Power Engineering
The function of moderators in nuclear reactor is to

None of these
Slow down the secondary neutrons
Absorb the secondary neutrons
Control the chain reaction

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Nuclear Power Engineering
Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.

9 x 10²¹
2200
1
3 x 10¹¹

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