Power Systems
String chart is drawn between

 temperature (T) on X- axis, sag(S) and tension (T) on Y-axis
 nether 1 nor 2
 T on Y-axis and S and T on on X-axis
 both 1 and 2

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Power Systems
Which of the following statements is true? Corona loss increases with

 decrease in conductor size and increase in supply frequency
 increase in conductor size and decrease in supply frequency
 increase in conductor size and increase in supply frequency
 decrease in conductor size and decrease in supply frequency

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Power Systems
In boiler water reactor (BWR)

 there is danger of radioactive contamination of steam.
 the feed water acts both coolant and a moderator.
  all of above.
 enriched uranium is used as fuel.

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Power Systems
In a biased differential relay the bias is defined as the ratio of

  operating coil current and restraining coil current.
  fault current and restraining coil current.
  fault current and operating coil current.
  number of turns of restraining and operating coil.

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