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Power Systems

Power Systems
Normally Z bus matrix is a

 unit matrix
 full matrix
 null matrix
 sparse matrix

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Power Systems
The power output from an hydroelectric plants depend on

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

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Power Systems
Which of the following plants is/are base load plants

 both 1 and 2
 run off river
 pump storage
 nuclear

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Power Systems
In load flow studies PV bus is treated as PQ bus when

 voltage at the bus become high
 phase angle become high
 any of the above
 reactive power goes beyond limit

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Power Systems
Which of the following method is/are more reliable?

 Gauss-Siedel (GS) method
All of these
 Newton Raphson (NR) method
 Fast Decoupled Load Flow (FDLF) method

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Power Systems
Which of the following statements is/are true? By increasing of temperature,

 sag increase
 tension decrease
 both 1 and 2
 neither 1 nor 2

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