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Power Systems

Power Systems
A gas turbine power plant is best suited for

 Emergency.
 Peak load.
 None of these.
 Base load.

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Power Systems
Power transmission lines are transposed to reduce

 proximity effect
 skin effect
 ferranti effect
 radio interference

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Power Systems
A power station plant load factor is defined as the ratio of

 minimum load to peak load
 minimum load to average load
 the energy generated to that of maximum energy that could have been generated
 average load to the peak load

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Power Systems
A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is

 540×540
 554×554
 555×555
 553×553

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Power Systems
Which of the following is/are the desirable properties of a insulator material?

 Low ratio of puncture strength to flash over.
 High ratio of puncture strength to flash over.
 Both 1 and 2
 High relative permittivity

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Power Systems
If the frequency is increased, then skin effect will

 decreases
 any of the above
 increases
 remains unaffected

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