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Power Systems

Power Systems
Fault calculations using computer are usually done by

None of these
 Y bus method
 Z bus method
 either 1 or 2

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Power Systems
To reduce the radio interference which line is/are transposed?

None of these
 either 1 or 2
 Both power and telecommunication lines
 Power line

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Power Systems
The ratio of reset to pick up current for an induction cup relay is approximately

 1.0.
 1.35.
 0.75.
  0.99.

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Power Systems
The specific speed ( NS ) of turbine is given by

 none of these.
 N√( P ) / H2/3.
 P√( N ) / H3/2.
  N√( P ) / H1.25.

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Power Systems
The conversion ratio of a breeder reactor is

  more than unity.
 none of above.
  equal to unity.
 less than unity.

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Power Systems
Apart from the skin effect the non uniformity of the current distribution is also caused by

 bundled conductors
 proximity effect
 ferranti effect
All of these

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