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Power Systems

Power Systems
The total number of strands in a ACSR conductor are 7, then find the layer number?

 7
 5
 3
 2

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Power Systems
Advantages of pumped storage plants is/are

All of these
 used as load frequency control
 operating time is minimum
 most economical as a peak load supply plant

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Power Systems
Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant

 Use of high pressure.
 Reheat of steam an intermediate stages.
All of these
 Use of steam for heating of boiler feed water.

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Power Systems
For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to

 V.
  1 / V2.
 1 / V.
 V2.

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Power Systems
Which of the following is/are base load plants?

 thermal plants
 nuclear plants
All of these
 hydro plants

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Power Systems
Oxide film arrestor has which of the following properties?

 Both A and B.
 Does not require daily charging.
 It is expensive.
 Installed at points of transmission line where daily visit is difficult.

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