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Power Systems

Power Systems
More efficient plants are used as

None of these
 both 1 and 2
 base load plant
 peak load plant

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Power Systems
A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is

 1.182 mH
 1.043 mH
 1.232 mH
 1.093 mH

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Power Systems
Non-commercial sources of energy are

None of these
  wood, animal wastes and agricultural wastes.
 solar, wind and biomass.
 fossil fuel, hydro power and nuclear power.

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Power Systems
Which of following power plants is free from environmental problem

 Diesel engine.
  Hydroelectric.
 Nuclear.
 Steam.

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Power Systems
Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

 25060 J.
  20160 J.
  20060 J.
 23060 J.

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Power Systems
A penstock is used as a condition between

 the heat ex-changer and the turbine in nuclear power plant.
 the turbine and discharge drain.
 none of above.
  the dam and the turbine in a hydro station.

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