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Nuclear Power Engineering

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

Working fluid in power turbine
None of these
Moderator
Coolant

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Nuclear Power Engineering
Which of the following is a moderating material used in nuclear reactor?

Stainless steel
Cadmium
Graphite
Zircalloy (an alloy of zirconium and aluminium)

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

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

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Nuclear Power Engineering
The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

159
1837
10000
2537

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Nuclear Power Engineering
The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years.

6
36
24
18

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Nuclear Power Engineering
Extraction of uranium from its ore is done by __________ method.

Physical beneficiation
Chemical
Pyrometallurgical
Electrometallurgical

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