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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
Transmission lines are transposed to reduce

 proximity effect
 ferranti effect
 skin effect
 interference with neighbouring communication lines

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Power Systems
If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be

 200 Amp.
  250 Amp.
 300 Amp.
 350 Amp.

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Power Systems
Which of the following statements is/are true? By increasing of temperature,

 neither 1 nor 2
 tension decrease
 sag increase
 both 1 and 2

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Power Systems
String efficiency depends upon

 no. of SCR in the string.
  all of these.
 voltage rating of one SCR.
 voltage rating of whole string.

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Power Systems
A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line?

 medium transmission line
 long transmission line
 any of the above
 short transmission line

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