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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
 0.4
 0.75
 0.25

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Power Systems
The method of neutral grounding affects the

All of these
 zero sequence network
 negative sequence network
 positive sequence network

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Power Systems
The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be

 8 MΩ
 32 MΩ
 4 MΩ
 16 MΩ

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Power Systems
If power P available from a hydroelectric plant is given by the formula P = 9.81QH, where Q is the flow rate through the turbine in l / s and H is the head in meters, then P will be unit of

 kWh.
  W.
 HP.
 kJ / S.

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Power Systems
The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° â„§. The sending end voltage is 400 kV. The receiving end voltage under no load condition is

 500 kV
 600 kV
 350 kV
 400 kV

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Power Systems
Plant capacity factor value is

 0
 greater than 1
 1
 less than 1

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