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Power Systems

Power Systems
Peak load power plants is/are

 nuclear plants
 both 1 and 2
 diesel plant
 pumped storage plant

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Power Systems
A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is

 1.232 mH
 1.093 mH
 1.043 mH
 1.182 mH

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Power Systems
A loss less transmission line has a length of 600 km, find the phase shift of voltage signal?

 90°
 45°
 36°
 42°

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Power Systems
The load current in short circuit calculations are neglected because

 short circuit currents are much larger than load currents
 both 1 and 2
 nether 1 nor 2
 short circuit currents are greatly out of phase with load currents

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Power Systems
The characteristic impedance of a transmission on line is

 Directly proportional to its length.
  Independent of its length.
 Inversely proportional to its length.
 Directly proportional to square root of its length.

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Power Systems
Skin effect depends on

All of these
 conductivity
 frequency
 relative permeability

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