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Power Systems

Power Systems
Pumped storage plant is a

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

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Power Systems
Which of the following power stations is mainly used to cover peak load on the system?

 nuclear plant
 pumped storage hydro power plant
 coal based thermal power plant
 gas based thermal power plant

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Power Systems
A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be

  35 kVA.
  89.22 kVA.
 70 kVA.
 49 kVA.

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Power Systems
The specific speed of water turbine is the speed at which the turbine develops

 maximum horse power.
 a minimum horse power.
 unit horse power at all heads.
  unit horse power at unit head.

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Power Systems
Which of the following statements is/are true? Due to corona,

 charging current increases
 power loss increases
All of these
 interference increases

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Power Systems
Which of the following relays are used in protection of medium transmission lines?

 any of the above
 Impedance relays
 Mho relays
 Admittance relays

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