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Power Systems

Power Systems
Length of short transmission line is up to

 80 km
 40 km
 any of the above
 150 km

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Power Systems
Zero voltage regulation is possible only for

All of these
 unity power factor
 lagging power factor
 leading power factor

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Power Systems
If we increase the spacing between the phase conductors, the value of line inductance

 increase
None of these
 remains unaffected
 decrease

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Power Systems
If the diameter of the conductor is increased

 no change in inductance and resistance
 the inductance is decreased
 the inductance is increased
 the resistance is increased

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Power Systems
Which of the following methods is/are used for reactive or voltage compensation

 series capacitor
 generation excitation control
 shunt capacitor
All of these

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Power Systems
The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is

 2 pu
 0.5 pu
 4 pu
 0.2 pu

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