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Nuclear Power Engineering

Nuclear Power Engineering
Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

85
65
15
45

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

Superheated steam
Saturated steam
Saturated water
Sub cooled water

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

< 0.025
1-25
> 200
> 1

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Nuclear Power Engineering
Radioactive decay is a __________ change.

Physical
None of these
Chemical
Nuclear

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Nuclear Power Engineering
Uranium is recovered from its ore (pitchblende) by

Leaching with sulphuric acid
Froth floatation technique
Dissolving in water
Smelting in a furnace

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Nuclear Power Engineering
Which is the most commonly used molten metal for cooling of nuclear reactors?

Sodium
Calcium
Mercury
Zinc

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