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Power Systems

Power Systems
Based on the discharge, Kaplan turbine will discharge

 >10000 lpm
 1000 lpm

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Power Systems
Which of the following statements is/are true regarding HVDC?

 There is no skin effect in dc line
All of these
 Corona loss is very much reduced in the dc line
 HVDC can utilize earth for its return path

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Power Systems
The function of draft tube is reaction turbine is to

 increase flow rate of water.
 reduce water hammer.
  convert kinetic energy of water.
 all of above.

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Power Systems
Telecommunication lines are transposed to reduce the

All of these
 voltage level
 efficiency
 radio interference in communication lines

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Power Systems
Percentage of carbon is highest in

  coal gas.
  lignite coal.
  bituminous coal.
  anthracite coal.

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Power Systems
Corona is accompanied by

 power loss and interference
All of these
 hissing sound
 violet visible light

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