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Power Systems

Power Systems
Fault calculations using computer are usually done by

 Z bus method
 either 1 or 2
 Y bus method
None of these

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 34*34
 84*84
 83*83
 33*33

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Power Systems
In transmission lines distribution constants are

 inductance and capacitance
 both 1 and 2
 resistance
 inductance and resistance

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Power Systems
By using guard ring in a transmission line, its string efficiency

 remains unaffected
None of these
 increase
 decrease

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Power Systems
A generating station which has a high investment cost and low operating cost is usually operated as a

 Base load station.
 None of above.
 Minimum load station.
 Peak load station.

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Power Systems
Which of the following power plants can generate power at unpredictable or uncontrollable time

 Cooling tower.
 Condenser.
 Wind turbine.
 Pulverising unit.

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