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Power Systems

Power Systems
Range of accelerating factor is

 10.8 to 11.2
 1.6 to 1.8
 1 to 10
 50 to 100

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Power Systems
Which of the following is/are advantages of N-R method?

 Number of iterations are less
 Applicable for large power system network
 Time taken for each iteration is less
 both 1 and 2

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Power Systems
One atomic mass unit is equivalent to

 120.4 MeV.
 180.5 MeV.
  931.4 MeV.
 251.2 MeV.

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Power Systems
A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively?

 0.6, 0.8 and 1.2 pu
 0.8, 0.8 and 1.2 pu
 0.6, 0.6 and 1.2 pu
 0.8, 0.6 and 1.2 pu

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

 less
 it does not related to breakdown voltage
None of these
 high

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Power Systems
What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?

 1.05.
 1.20.
  0.75.
 0.90.

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