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Power Systems

Power Systems
A gas turbine power plant is best suited for

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

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Power Systems
A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is

 55 kA.
 50 kA.
 45 kA.
  35 kA.

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Power Systems
A CT is connected in ___________________ with the line.

  across.
  series.
  both A and B.
  not connected.

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Power Systems
Operating cost of thermal power station is

  less than that of diesel power plant.
 less than that of nuclear power plant.
 is the same as that of nuclear power plant.
 less than that of hydroelectric power plant.

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Power Systems
A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 %

 4.06 × 106 kWh.
 3 × 106 kWh.
 5 × 106 kWh.
  2.044 × 106 kWh.

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Power Systems
Out of the following plant categories which is not the base load power plant?

 Run of river.
 Nuclear.
 Diesel.
  Pump storage.

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