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Power Plant Engineering

Power Plant Engineering
Half life of a radioactive isotope corresponds to the time required for half of the following to decay

Atom
Electrons
Neutrons
Protons

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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 zero
Greater than 1.0
Equal to 1.0
Less than 1.0

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Power Plant Engineering
The risk of radioactive hazard is greatest in the turbine with following reactor

Pressurised water
Liquid metal cooled
Boiling water
Gas cooled

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Power Plant Engineering
Artificial radioactive isotopes find application in

Nucleonic devices
Nuclear fission
Medical field
Power generation

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Power Plant Engineering
In the breeder reactors the generation of new fissionable atom is

At an equal rate of the consumption
Depends on other considerations
At the lower rate than the consumption
At a higher rate than the consumption

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Power Plant Engineering
Effective moderators are those materials which contain

Zero weight atoms
Light weight atoms
Heavy weight atoms
Critical atoms

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