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Power Systems

Power Systems
Mho relay is used for protection of

  short lines.
  medium lines.
  none of these.
  long lines.

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Power Systems
Deflectors are provided in

 propeller turbine.
 Francis turbine.
 Kaplan turbine.
  Pelton wheel.

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Power Systems
If we increase the spacing between the phase conductors, the line capacitance

 decreases
None of these
 increases
 remains unaffected

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Power Systems
A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is

  5000 MVA.
 5200 MVA.
 5500 MVA.
  5100 MVA.

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Power Systems
When a pumped storage power plant is operated in conjunction with a steam power plant

 load factor of the steam plant is increased
 chances of the tripping of the system decrease
 the operating cost of the steam plant become optimum
All of these

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Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.25
 0.4
 0.75
 0.5

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