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Power Systems

Power Systems
Breaking current is a ------------------ value?

 any of the above
 average
 maximum
 RMS

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Power Systems
Zero sequence currents can flow from a line into a transformer bank if the windings are in

 delta / star.
 delta / delta.
 star / grounded star.
  ground star / delta.

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Power Systems
If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is

 1250 MW
 1500 MW
 1000 MW
 750 MW

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Power Systems
Phase shift occurs due to which of the following components?

 capacitance
 conductance
 both 1 and 2
 inductance

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Power Systems
For which one of the following types of motors, is the equal area criterion for stability applicable?

 Three phase induction motor
 Three phase synchronous motor
 DC series motor
 DC shunt motor

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Power Systems
One fission of U235 releases energy of

 525 MeV.
  200 MeV.
 435 MeV.
 335 MeV.

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