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Power Systems

Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 8
 5
 4
 2

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Power Systems
The thermal efficiency of BWR is

  equal to that of PWR.
None of these
 less than that of PWR.
 greater than that of PWR.

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Power Systems
In thermal plant most of the energy is wasted in

 boiler
 turbines
 condenser
 ESP

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Power Systems
Switchgear equipment include

  all of these.
  switches.
  fuses.
  relays and CB.

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Power Systems
The only place where slip ring induction motors used in thermal power plants is

  conveyors.
  lubrication oil pumps.
  none of above.
  coal handling plant.

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Power Systems
A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation?

 0.6 lag and 0.6 lead
 0.8 lag and 0.6 lead
 0.6 lag and 0.8 lead
 0.8 lag and 0.8 lead

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