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Power Plant Engineering

Power Plant Engineering
The energy released during the fission of one atom of Uranium 235 in million electron volts is about

400
100
300
200

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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

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

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Power Plant Engineering
A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to

Control the reaction
Slow down the speed of fast moving neutrons
Reduce the temperature
Extracts heat from nuclear reaction

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Power Plant Engineering
The commonly used material for shielding is

Thick galvanized sheets
Lead or concrete
Lead and tin
Graphite or cadmium

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Power Plant Engineering
A nuclear fission produces energy of following order in MeV

20
20000
200
2000

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Power Plant Engineering
A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be

Stable under nuclear radiation
Corrosion resistant
Good thermal conductor
All of the listed here

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