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Power Systems

Power Systems
India’s largest thermal power station is located at

 Kota.
 Neyveli.
 Chandrapur.
 Sarni.

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Power Systems
A gas turbine power plant is best suited for

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

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Power Systems
The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be

 -2 - j 1 A
 1 + j 4 A
 5 + j 7 A
 1 + j 2 A

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Power Systems
A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of

 82%
 76%
 78%
 80%

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Power Systems
The ratio of reset to pick up current for an induction cup relay is approximately

 1.35.
  0.99.
 1.0.
 0.75.

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Power Systems
The power output from an hydroelectric plants depend on

 type of dam, type of catchment area and discharge.
 type of dam, head, system efficiency.
  discharge, system efficiency.
 type of turbine, type of dam and type of catchment area.

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