Power Plant Engineering
A power plant giving least running cost of production of electrical power is

Gas turbine power plant
Steam power plant
Nuclear power plant
Hydro electric power plant

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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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Power Plant Engineering
Isotopes of same elements have

Different chemical properties and same atomic numbers
Same atomic number and different masses
Same chemical properties but different atomic numbers
Different masses and different atomic numbers

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