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Nuclear Power Engineering

Nuclear Power Engineering
Coolant used in a fast breeder reactor is

Molten sodium
Heavy water
Ordinary water
Helium

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Nuclear Power Engineering
Molten sodium is used as a coolant in a fast breeder reactor, because of its

Capability to increase the reaction rate in the core
Faster heat removal capability from the core
Excellent moderating properties
Neutron breeding capability

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Nuclear Power Engineering
Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent.

32
88
52
72

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Nuclear Power Engineering
Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor?

Molten sodium cooled
Pressurised water
CO₂ gas cooled
Boiling water

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Nuclear Power Engineering
Coolant present in the primary circuit of a pressurised water reactor is high pressure

Superheated steam
Saturated water
Saturated steam
Sub cooled water

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Nuclear Power Engineering
The disintegration rate of a radioactive element

Progressively decreases
Progressively increases
Remains constant throughout
May increase or decrease depending on the material

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