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Power Systems

Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 2
 4
 8
 5

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Power Systems
Normally Z bus matrix is a

 full matrix
 sparse matrix
 unit matrix
 null matrix

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is suited for capacitor bank switching

  air blast.
  SF6.
  vacuum.
  oil.

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Power Systems
The shape of the disc of an induction disc relay is

  spiral.
  circular.
  elliptical.
  none of these.

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Power Systems
Rating of fuse wire is expressed in

 ÃŽÂ©.
  Mho.
  Ampere.
  Watts.

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Power Systems
What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?

  0.75.
 0.90.
 1.05.
 1.20.

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