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Power Systems

Power Systems
Rankine cycle efficiency of a steam power plant is of

  60 - 80 %.
  30 - 45 %.
  45 - 80 %.
  20 - 30 %.

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Power Systems
Lightning arresters are used for

 protection of equipment from open circuits
 protection of equipment from external lightning
 protection of equipment from short circuits
All of these

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Power Systems
The specific speeds of Kaplan, Francis and Pelton turbines are in

 neither increasing nor decreasing order.
 the increasing order.
None of these
  the decreasing order.

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Power Systems
The essential requirement(s) for power plants to be operated as peak load plants are

 Capability of quick starts.
All of these
 Low capital cost.
 Quick response to load variation.

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

 it does not related to breakdown voltage
 less
None of these
 high

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Power Systems
The positive sequence reactance will be equal to negative sequence if the equipment is

  none of these.
  transformer and transmission lines.
  motor.
  generator.

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