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Power Systems

Power Systems
Uses of diesel power stations

 standby plants.
All of these
  peak load plant.
  emergency plants.

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Power Systems
Hydro-graph is similar to

  load curve.
 energy load curve.
 mass curve.
 both B and C.

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Power Systems
A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 163 × 163
 164 × 164
 162 × 162
 165 × 165

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Power Systems
A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively?

 0.8, 0.6 and 1.2 pu
 0.8, 0.8 and 1.2 pu
 0.6, 0.8 and 1.2 pu
 0.6, 0.6 and 1.2 pu

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Power Systems
The area under a flow duration curve represents

  total quantity of run-off during that period.
 total of units of energy available.
 total power available.
 maximum rate of run-off during the period.

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Power Systems
The function of moderator in a nuclear reactor is to

 absorb neutrons.
 reduce temperature.
  stop chain reaction.
  reduce the speed of neutrons.

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