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Nuclear Power Engineering

Nuclear Power Engineering
If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same istotope will be __________ days.

10
5
20
30

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

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

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Nuclear Power Engineering
An electron has a mass that is approximately __________ that of the proton.

1
1836 (approximately)
∞
1/1836 (approximately)

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Nuclear Power Engineering
The critical mass of a fissionable material can be reduced by

Heating it
Surrounding it by neutron reflecting material
Cooling it
Surrounding it by neutron absorbing material

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Nuclear Power Engineering
Hydrogen differs from deuterium in __________ properties.

Chemical
Physical
Radioactive
All of these

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Nuclear Power Engineering
Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

U-233
U-235
Pu-239
U-238

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