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Power Systems

Power Systems
If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be

 25.
 50.
 15.
 10.

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Power Systems
Breaking current is a ------------------ value?

 any of the above
 maximum
 average
 RMS

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Power Systems
Units of incremental cost is

 Rs/hr
 MWhr/Rs
 RsMW/hr
 Rs/MWhr

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Power Systems
Which of the following method is used for changing power factor from leading to lagging

 series capacitor
 shunt capacitor
 shunt reactor
 any of the above

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Power Systems
In a nuclear reator thermal energy is obtained from

 burning of fuel rods in oxygen.
 fusion of radioactive material.
 all of above.
  fission of radioactive material.

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Power Systems
Length of the cable is doubled, its capacitance C will be

 one-fourth.
 doubled.
 one-half.
 unchanged.

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