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Power Systems

Power Systems
Peak load power plants is/are

 diesel plant
 nuclear plants
 pumped storage plant
 both 1 and 2

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Power Systems
The characteristic impedance of a transmission line is

 Directly proportional to its length.
 Inversely proportional to square root of its length.
 Directly proportional to square root of its length.
 Independent of its length.

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Power Systems
Rating of fuse wire is expressed in

  Ampere.
  Mho.
  Watts.
 ÃŽÂ©.

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Power Systems
For symmetrical network, the neutral current is

 any of the above
 infinity
 maximum
 zero

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Power Systems
Ships are usually supplied power by

 Hydraulic turbine.
  Diesel engine.
 None of above.
 Steam accumulator.

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Power Systems
What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ?

 120 : 6 / √3.
  100 : 5 / √3.
 150 : 4 / √3.
  200 : 5 / √3.

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