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Nuclear Power Engineering

Nuclear Power Engineering
Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

45
15
65
85

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Nuclear Power Engineering
Isotopes of an element have different

Mass number
Chemical properties
Electronic configuration
Nuclear charge

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

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

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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.

43834
43832
43838
43846

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Nuclear Power Engineering
The time required for half of the __________ of a radioactive isotope to decay is called its half life.

Protons
Neutrons
Nuclei
Electrons

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Nuclear Power Engineering
Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?

H₂
CO₂
N₂
He

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