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Power Systems

Power Systems
In thermal plant most of the energy is wasted in

 condenser
 ESP
 turbines
 boiler

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Power Systems
To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine.

  economizer.
  air preheater.
  superheater.
  ash handling point.

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Power Systems
On a power system network the load is increasing represents the value of impedance

  remains constant.
  none of above.
  increase.
  decrease.

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Power Systems
An ACSR conductor has a diameter of 2 cm has internal inductance of 0.05 mH/Km. If this ACSR is replaced with another having a diameter of 4 cm then its internal inductance is

 0.05 mH/Km
 0.025 mH/Km
 0 mH/Km
 0.1 mH/Km

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Power Systems
A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications

 Condenser.
 Cooling tower.
 Ash handling unit.
 Pulversing unit.

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Power Systems
The insulator thickness on the conductor, in cables depends upon

 power factor
 current
 voltage
 reactive power

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