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Power Plant Engineering

Power Plant Engineering
Each fission of U₂₃₅ produces following number of fast neutrons per fission

1 neutron
2 neutrons
1, 2 neutrons
3 neutrons

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Power Plant Engineering
Gas cooled reactor uses following materials as moderator, and coolant

Heavy water, CO2
Lead, H2
Graphite, air
Graphite, CO2

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Power Plant Engineering
In order to have constant chain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be

Equal to 1.0
Less than 1.0
Greater than 1.0
Equal to zero

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Power Plant Engineering
The material most commonly used for shielding is

Lead
Concrete
Carbon
All of these

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Power Plant Engineering
The fast breeder reactor uses the following moderator

Carbon dioxide
Demineralised water
Heavy water
No moderator is used

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Power Plant Engineering
Breeder reactors employ liquid metal coolant because it

Produces maximum steam
Transfers heat from core at a fast rate
Acts as good moderator
Breeds neutrons

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