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Power Systems

Power Systems
Breaking current is a ------------------ value?

 RMS
 average
 maximum
 any of the above

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Power Systems
Ships are usually supplied power by

 None of above.
 Steam accumulator.
 Hydraulic turbine.
  Diesel engine.

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Power Systems
Counter poise is used for

 reduce losses
 proper discharging of lighting surges
 more surge impedance
 less surge impedance

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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?

 34*34
 33*33
 84*84
 83*83

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Power Systems
In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

 0.5
 1
 0.25
 0.75

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Power Systems
Bundled conductors in EHV transmission lines

 decrease capacitance
 decrease inducatance
 increase inductance
 increase capacitance

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