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Power Systems

Power Systems
Which of the following plants is/are base load plants

 run off river
 pump storage
 both 1 and 2
 nuclear

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Power Systems
Isolator in sub station is open under ------------- condition?

 no load
 full load
 any of the above
 short circuit

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Power Systems
A loss less transmission line has a length of 600 km, find the phase shift of voltage signal?

 45°
 90°
 36°
 42°

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Power Systems
Operator "a" rotates a vector

 clock wise direction
 either 1 or 2
 nether 1 nor 2
 anti clock wise direction

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Power Systems
Mho relay is used for protection of

  long lines.
  medium lines.
  none of these.
  short lines.

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Power Systems
For a 500 Hz frequency excitation, a 100 km long power line will be modelled as

 long transmission line
 medium transmission line
 any of the above
 shunt capacitor

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