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Power Systems

Power Systems
The amount of ash content in Indian coal

  60 %.
  45 %.
 20 %.
 35 %.

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Power Systems
If we increase the length of the transmission line, the charging current

 decreases
 remains unaffected
None of these
 increases

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Power Systems
Which material is used in controlling chain reaction in a nuclear reactor

 Thorium.
  Boron.
 Heavy water.
 Beryllium.

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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
 any of the above
 medium transmission line
 shunt capacitor

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Power Systems
A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base?

 0.1 pu
 0.2 pu
 0.4 pu
 0.5 pu

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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

 7 A.
 8 A.
  6 A.
 10 A.

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