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Power Systems

Power Systems
Length of short transmission line is up to

 any of the above
 80 km
 150 km
 40 km

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Power Systems
Which of following power plants normally operage at high speeds

 Diesel engine.
  Thermal.
 Hydro electric.
 Petrol engine.

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Power Systems
Which of the following buses is/are not PV buses?

 voltage control buses
 both 1 and 2
 fixed shunt capacitor buses
 reactive power support buses

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Power Systems
Reflector nuclear reactor are made of

 cast iron.
 steel.
 boron.
  beryllium.

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Power Systems
Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of

 16 MJ/MVA
 4 MJ/MVA
 2 MJ/MVA
 8 MJ/MVA

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Power Systems
Counter poise is used for

 less surge impedance
 proper discharging of lighting surges
 more surge impedance
 reduce losses

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