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Power Plant Engineering

Power Plant Engineering
The energy required to be applied to a radioactive nucleus for the emission of a neutron is

7.8 MeV
4.3 MeV
2.4 MeV
1 MeV

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Power Plant Engineering
In triggering fission, which types of neutrons are more effective?

In bulk
Static
Slow
Fast

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Power Plant Engineering
Economizer is used to heat

Feed water
flue gases
All mentioned
Air

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Power Plant Engineering
The following present serious difficulty in designing reactor shield

Fast neutrons and gamma rays
Alpha particles
Thermal neutrons
Beta particles

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Power Plant Engineering
Plutonium (Pu239) is produced

By fission of Th232
Artificially
When U238 is irradiated by neutrons
As basic raw material

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Power Plant Engineering
The main interest of shielding in nuclear reactor is protection against

Neutrons and gamma rays
Infrared rays
Electrons
X-rays

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