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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
20
30
5

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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.

2200
1100
4400
3300

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Nuclear Power Engineering
Which of the following may not need a control rod?

None of these
Fast breeder reactor
Liquid metal cooled reactor
Candu reactor

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

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Nuclear Power Engineering
The emission of an a-particle causes the resultant nucleus to have

Less atomic weight and more atomic number
More atomic weight and less atomic number
Less atomic weight and less atomic number
None of these

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Nuclear Power Engineering
Radioactivity of an isotope is expressed in

MeV
Curie
Barn
Ergs

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