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Power Systems

Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 200 Ω
 400 Ω
 800 Ω
 160 Ω

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Power Systems
For load flow studies, What are the quantities specified at load bus are

 P and Q
 V and δ
 P and V
 δ and Q

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Power Systems
The commercial sources of energy are

  fossile fuels and radioactive substances.
 none of above.
 wood, animal wastes and agricultural wastes.
 solar, wind, biomass.

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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?

 83*83
 84*84
 34*34
 33*33

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Power Systems
On which one of the following cycles does a modern steam power plat work

  Rankine cycle.
 Otto cycle.
 Bell - Coleman cycle.
 Carnot cycle.

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Power Systems
Transmission lines are transposed to reduce

 ferranti effect
 skin effect
 interference with neighbouring communication lines
 proximity effect

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