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Power Systems

Power Systems
Reflector nuclear reactor are made of

 cast iron.
 boron.
 steel.
  beryllium.

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

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

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Power Systems
If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

 0.4 pu
 1 pu
 0.8 pu
 0.5 pu

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Power Systems
A gas turbine power plant is best suited for

 Emergency.
 None of these.
 Peak load.
 Base load.

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Power Systems
A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is

 33.33%
 25%
 75%
 66.66%

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Power Systems
The total number of strands in a ACSR conductor are 7, then find the layer number?

 2
 5
 3
 7

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