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Power Systems

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

 peak value
 average
 any of the above
 RMS

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Power Systems
When a pumped storage power plant is operated in conjunction with a steam power plant

 chances of the tripping of the system decrease
All of these
 the operating cost of the steam plant become optimum
 load factor of the steam plant is increased

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Power Systems
A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is

 50 kA.
 45 kA.
  35 kA.
 55 kA.

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Power Systems
The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of

 high energy loss in boilers
 low steam turbine mechanical efficiency
 low alternator efficiency
 high energy loss in condenser

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Power Systems
Highest pressure generating pump inside the thermal plant is

 high pressure heater
All of these
 low pressure heater
 boiler feed pump

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Power Systems
Ideal plant load cfactor is

 greater than 1
 1
 less than 1
 0

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MORE MCQ ON Power Systems

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