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Power Systems

Power Systems
The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base?

 0.1 pu
 0.25 pu
 0.4 pu
 0.2 pu

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Power Systems
The area under a flow duration curve represents

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

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Power Systems
Which of following generating plants has the minimum operating cost

 Hydroelectric plant.
 Nuclear plant.
 Steam plant.
 Diesel plant.

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Power Systems
Which of the following is used in thermal plants

 Joule cycle
All of these
 Rankine cycle
 Otto cycle

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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
 165 × 165
 164 × 164
 162 × 162

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Power Systems
The most suitable circuit breaker for short line fault without switching resistor is

  SF6 breaker.
 oil circuit breaker.
 none of these.
 air blast circuit breaker.

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