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Nuclear Power Engineering

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.

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

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Nuclear Power Engineering
A pressurised water reactor (PWR) uses pressurised water as a

Coolant
Moderator
None of these
Working fluid in power turbine

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Nuclear Power Engineering
Percentage of U-238 in natural uranium is around

0.71
0.015
29.71
99.29

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Nuclear Power Engineering
Fission of U-235 on slow neutron bombardment can be represented by

92U235 + 0n1 → 92U236 + 3 0n1+ Q (energy)
92U235 + 0n1 → 56Ba143 + 36Kr90
92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy)
92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1

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Nuclear Power Engineering
Nucleus of tritium has __________ neutrons.

1
3
5
2

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

3
4
43894
43836

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