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Nuclear Power Engineering

Nuclear Power Engineering
Radioactive decay of a material involves a __________ order reaction.

Second
Zero
First
Third

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Nuclear Power Engineering
The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.

1/4
1/8
1/16
1/2

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Nuclear Power Engineering
The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.

6.25
12.5
25
3.125

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Nuclear Power Engineering
Critical mass is the minimum mass of nuclear fissile material required for the

Sustainment of chain reaction
Economic power generation
Power generation on commercial scale
None of these

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Nuclear Power Engineering
Spent fuel from the nuclear thermal reactor contains

Plutonium
Fission products
Unused fuel
All of these

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Nuclear Power Engineering
The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is

3
4
2
1

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