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Power Systems

Power Systems
Rankine cycle efficiency of a steam power plant is of

  45 - 80 %.
  60 - 80 %.
  30 - 45 %.
  20 - 30 %.

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Power Systems
What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?

  0.75.
 1.05.
 0.90.
 1.20.

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Power Systems
Which of the following is an impulse turbine

  Kaplan turbine.
  None of above.
  Pelton turbine.
  Francis turbine.

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Power Systems
An ACSR conductor has a diameter of 2 cm has internal inductance of 0.05 mH/Km. If this ACSR is replaced with another having a diameter of 4 cm then its internal inductance is

 0.05 mH/Km
 0.025 mH/Km
 0 mH/Km
 0.1 mH/Km

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Power Systems
A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power and the transmission line is compensated with a series capacitance of 0.5 Pu. Find the load angle with series capacitance compensation ?

 14.5°
 29°
 35.5°
 10.5°

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Power Systems
Pelton wheel turbine is a

  high head turbine.
  medium head turbine.
  low head turbine.
  none of above.

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