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Nuclear Power Engineering

Nuclear Power Engineering
Which of the following is not, a fertile material?

U-233
None of these
U-238
Th-232

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Nuclear Power Engineering
Gas cooling as compared to water cooling of nuclear reactors

Can produce only saturated steam for feeding to power turbine
Can not attain a high temperature
Is more efficient as gas has a higher specific heat
None of these

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Nuclear Power Engineering
The radioisotope used to study the thyroid gland is

Carbon
Iron
Cobalt
Iodine

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Nuclear Power Engineering
The specific heats of three gaseous coolants namely H₂, He and CO₂ in the increasing order are

CO₂, H₂, He
H₂, He, CO₂
H₂, CO₂, He
CO₂, He, H₂

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Nuclear Power Engineering
Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.

> 200
1-25
< 0.025
> 1

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Nuclear Power Engineering
The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about __________ metres/second.

4400
3300
2200
1100

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