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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?

 0.4
 0.5
 0.25
 0.75

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Power Systems
The function of draft tube is reaction turbine is to

 increase flow rate of water.
 reduce water hammer.
 all of above.
  convert kinetic energy of water.

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 33*33
 34*34
 84*84
 83*83

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Power Systems
For symmetrical network, the neutral current is

 any of the above
 maximum
 zero
 infinity

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Power Systems
The insulation of modern EHV is designed based on

  switching voltage.
 RI.
 corona.
 lightning voltage.

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Power Systems
Phase shift occurs due to which of the following components?

 capacitance
 both 1 and 2
 inductance
 conductance

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