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Power Systems

Power Systems
The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is

 0.5 pu
 4 pu
 0.2 pu
 2 pu

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Power Systems
Due to proximity effect, the increase in conductor resistance is not negligible in

All of these
 communication lines
 overhead transmission lines
 underground cable

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Power Systems
The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is

 10 A.
  6 A.
 7 A.
 8 A.

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Power Systems
A diesel power plant is generally used as a/an

 Peak loads.
 Base load.
 Standby/emergency plant.
 Any of above.

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Power Systems
Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant

 Reheat of steam an intermediate stages.
 Use of steam for heating of boiler feed water.
All of these
 Use of high pressure.

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Power Systems
Under excited Synchronous phase modifier works as

 series capacitor
 shunt capacitor
 shunt reactor
 any of the above

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