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Power Systems

Power Systems
Transmission line parameters of the short transmission line are

 1,Z,0,1
 Z,0,Y,1
 1,0,Y,1
 1,Z,Y,1

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Power Systems
The power output from an hydroelectric plants depend on

  discharge, system efficiency.
 type of turbine, type of dam and type of catchment area.
 type of dam, type of catchment area and discharge.
 type of dam, head, system efficiency.

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Power Systems
A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of

 78%
 82%
 80%
 76%

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

 peak value
 any of the above
 average
 RMS

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Power Systems
An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is

 7.25 pu
 2.5 pu
 4.28 pu
 3.75 pu

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Power Systems
The specific speeds of Kaplan, Francis and Pelton turbines are in

 the increasing order.
 neither increasing nor decreasing order.
  the decreasing order.
None of these

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