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
In nuclear fission

The molecules rearrange themselves to form other molecules
The electrons of the element change
The original elements change into completely different elements
None of the listed here

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Power Plant Engineering
A pressurized water reactor employs pressurizes for the following application

To increase pressure of water in primary circuit
To provide sub cooled water at high pressure
To Supply high pressure steam
To maintain constant pressure in primary circuit under varying load

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