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Power Systems

Power Systems
Reflector of a nuclear reactor are made up of

 steel.
  boron.
 cast iron.
  beryllium.

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Power Systems
Fault calculations using computer are usually done by

None of these
 Y bus method
 Z bus method
 either 1 or 2

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Power Systems
What are the methods of laying underground cables?

  Both A and B.
 Draw - in - system / duct - pipe laying.
 Direct laying.
 None of these.

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Power Systems
If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs.

 20.
  5.
 3.
 7.

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Power Systems
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is

 0.75
 0.5
 0.6
 1

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Power Systems
The main objectives of electrical power transmission is/are

 nether 1 nor 2
 Voltage regulation of the transmission line must be zero or minimum
 both 1 and 2
 Transmission system must be more efficient with minimum line losses

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