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Power Systems

Power Systems
Which turbine is ideally suited to pumped storage plants

 Francis.
  Kaplan.
 Pelton.
 Impeller.

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Power Systems
Pumped storage plant is a

 base load plant
 peak load plant
None of these
 both 1 and 2

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Power Systems
Plug setting of a relay can be altered by varying

 none of these.
 no. of ampere-turns.
 adjustable back up stop.
 air gap of magnetic path.

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

 average
 any of the above
 RMS
 maximum

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Power Systems
Stock bridge dampers are used in case hill areas to over come the which problem?

 unequal ice loading
 increase power factor
 increase string efficiency
All of these

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Power Systems
What is the approximate efficiency of a normal thermal power station?

 30-40%
 45-55%
 60-70%
 20-25%

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