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Power Systems

Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 5
 6
 3
 4

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

  SF6.
  oil.
  air blast.
  vacuum.

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Power Systems
A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

 0.25
 0.05
 0.025
 0.02

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Power Systems
The specific speed of water turbine is the speed at which the turbine develops

 maximum horse power.
 a minimum horse power.
  unit horse power at unit head.
 unit horse power at all heads.

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Power Systems
Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form?

 RMS and RMS value
 RMS and Instantaneous value
 Instantaneous and RMS value
 any of the above

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Power Systems
Advantages of gauss siedel method is/are

 applicable for large power system network
All of these
 calculation time for each iteration is less
 number of iterations are less

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