Power Systems
Which of the following power plants can generate power at unpredictable or uncontrollable time

 Pulverising unit.
 Cooling tower.
 Condenser.
 Wind turbine.

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Power Systems
In coal fired thermal power stations, what are the electrostatic precipitators used for?

 To collect the dust particles from the flue gases
 To remove dust particles setting on the bus bar conductors in the station switch yard
 To keep the air heaters clean
All of these

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Power Systems
The power level of nuclear reactor can be increase by ( K = multiplication factor )

 lowering the value of K below and keeping at that lowered value.
 raising the value of K above 1 and keeping it at raised value.
  raising the value of K above 1, but later bringing it back to K = 1.
 lowering the value of K below 1 but later bringing it back to K = 1.

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