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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?

 4
 5
 3
 6

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Power Systems
The power generated by two plants are; P1 = 50 MW, P2 = 40 MW. If the loss coefficients are B11 = 0.001, B22 = 0.0025 and B12 = -0.0005, then power loss will be

 5.5 MW
 4.5 MW
 6.5 MW
 8.5 MW

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Power Systems
In relay coil which is used?

  Current transformer.
  Power transformer.
  Potential transformer.
  Instrument transformer.

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Power Systems
The skin effect of conductor will increase when

 diameter decrease
 resistivity decrease
 frequency decrease
All of these

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Power Systems
What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes

 80.25 %.
  79.33 %.
  74.56 %.
 78.96 %.

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Power Systems
Which one of following is employed as a moderator by CANDU type of slow thermal nuclear reactors

  Heavy water.
 Graphite.
 Water.
 Beryllium.

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