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Power Systems

Power Systems
Cheapest plant in operation and maintenance is

  nuclear.
  steam power.
  hydroelectric.
  diesel power.

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Power Systems
If the rated receiving end voltage is 33 kV, then what are the limits for safe operation of equipments?

 25 to 35 kV
 31.35 to 34.65 kV
 any voltage above 33 kV
 33 to 50 kV

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Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 5
 10
 1
 100

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Power Systems
Main bus bar protection scheme is /are

  fault bus protection.
  none of these.
  both fault bus and differential protection.
  differential protection.

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Power Systems
A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is

 0.0312 m/s
 32 m/s
 159.24 m/s
 159.24 m/µs

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

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