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Power Systems

Power Systems
If the load is short circuited, then reflection coefficient of voltage is

 -1
 0
 -2
 1

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Power Systems
More efficient plants are used as

 base load plant
None of these
 both 1 and 2
 peak load plant

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Power Systems
Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length.

 Decrease but does not halves.
 Halves.
 Doubled.
  Increase but does not doubled.

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Power Systems
The ratio of reset to pick up current for an induction cup relay is approximately

 1.35.
 1.0.
 0.75.
  0.99.

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Power Systems
In a two plant system, the load is connected to plant number 2. The loss coefficients are

 B11,B22 are non zero,B12 = 0
 B11,B12 are non zero ,B22 = 0
 B11 is non zero,B22 = B12 = 0
 B11,B22,B12 are non zeros

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Power Systems
If the conductor diameter decreases, inductance of the line,

 remains unaffected
 increases
 decreases
None of these

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