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Power Systems

Power Systems
Pelton turbine is a ----------- turbine

 any of the above
 axial flow
 impulsive
 inward radial flow

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

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

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Power Systems
Which of the following power plants can generate power at unpredictable or uncontrollable time

 Pulverising unit.
 Wind turbine.
 Condenser.
 Cooling tower.

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Power Systems
A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the transmitted voltage?

 100 kV
 18.18 kV
 36. 36 kV
 30.6 Kv

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Power Systems
For 66 kV lines the number of insulator discs of each 11 kV used are

 6
 12
 3
 5

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Power Systems
The average thermal efficiency of a modern nuclear power plant is about

 80 %.
  30 %.
 40 %.
 60 %.

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