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Power Systems

Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.5
 0.25
 0.4
 0.75

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Power Systems
If we increase the spacing between the phase conductors, the line capacitance

None of these
 decreases
 remains unaffected
 increases

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Power Systems
Which of the following circuit breakers produce least arc energy?

 Air break CB.
 Plain oil CB.
  Air blast CB.
 Minimum oil CB.

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Power Systems
Surge impedance loading of a transmission line can be increased by

 addition of lumped capacitance in series
 both 1 and 3
 increasing its voltage level
 addition of lumped inductance in parallel

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Power Systems
How much KWh energy is produced by fission of 1 gm of uranium U235

 240 kWh.
  24000 kWh.
 2400 kWh.
  24 kWh.

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Power Systems
Find the number of strands of ACSR conductor for 3 layer transmission line?

 1
 29
 7
 19

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