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Power Systems

Power Systems
Location of a surge tank, in an hydro electric power station is near

 tail race.
  turbine.
 reservoir.
 dam.

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Power Systems
An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is

 6.25 A
 12.5 A
 15 A
 10 A

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Power Systems
For symmetrical network, the neutral current is

 infinity
 any of the above
 maximum
 zero

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

 Nuclear.
 Steam.
 Diesel engine.
  Hydroelectric.

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Power Systems
If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage

 50 kV.
 400 kV.
  100 kV.
  200 kV.

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Power Systems
A gas turbine power plant is best suited for

 Emergency.
 Base load.
 None of these.
 Peak load.

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