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Power Systems

Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 6
 5
 3
 4

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Power Systems
The presence of earth in case of overhead lines

 decrease capacitance
 decrease inducatance
 increase inductance
 increase capacitance

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Power Systems
The most commonly used material for insulators of overhead lines is

 porcelain
 glass
 PVC
 mica

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Power Systems
A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will

None of these
 remains unaffected
 decreases
 increases

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Power Systems
Which of the following method is used for changing power factor from leading to lagging

 series capacitor
 shunt capacitor
 shunt reactor
 any of the above

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Power Systems
The specific speeds of Kaplan, Francis and Pelton turbines are in

  the decreasing order.
None of these
 neither increasing nor decreasing order.
 the increasing order.

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