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Power Systems

Power Systems
Uses of diesel power stations

 standby plants.
  emergency plants.
  peak load plant.
All of these

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Power Systems
Area under the daily curve divided by 24 gives

 average load
 maximum load
 units generated
 maximum demand

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Power Systems
The arc voltage produced in an AC circuit breaker is always

  in phase with the arc current.
 leading the arc current by 90°.
 lagging the arc current by 90°.
 in phase opposition with the arc current.

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Power Systems
Phase shift occurs due to which of the following components?

 conductance
 inductance
 both 1 and 2
 capacitance

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

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

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Power Systems
Power transmission lines are transposed to reduce

 radio interference
 skin effect
 ferranti effect
 proximity effect

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