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Power Systems

Power Systems
For large plants of capacity for more than 15 MW, what type of cooling is used

  Hydrogen.
  Water.
  Air.
  Liquid.

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Power Systems
In thermal plant most of the energy is wasted in

 ESP
 boiler
 turbines
 condenser

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Power Systems
Surge impedance loading of a transmission line can be increased by

 addition of lumped capacitance in series
 addition of lumped inductance in parallel
 increasing its voltage level
 both 1 and 3

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Power Systems
A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be

 70 kVA.
 49 kVA.
  89.22 kVA.
  35 kVA.

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Power Systems
The load duration curve for a system is 8 hours 30 MW, 16 hours 25 MW and 24 hours 20 MW. The load factor will be

  0.83.
 0.44.
 1.3.
 0.25.

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Power Systems
Which of the following is a reaction turbines

  Francis turbine and Kaplan turbine.
  Pelton turbine and Francis turbine.
  None of these.
  Kaplan and Pelton turbine.

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