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Power Systems

Power Systems
Based on the discharge, Kaplan turbine will discharge

 >10000 lpm
 1000 lpm

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Power Systems
A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is

 31.7
 23.9
 35.45
 38.6

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Power Systems
Which of the following matrix is used for load flow studies?

 Y bus matrix
 null matrix
 Z bus matrix
 Unit matrix

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Power Systems
Which of the following is low specific speed turbine?

 Francis
 Kaplan
 Pelton
None of these

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Power Systems
The main advantage of the Decoupled Load Flow (DLF) as compared to the NR method is

 reduced memory requirements in storing the Jacobian elements
 number of iterations are less
All of these
 accuracy is more

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Power Systems
A power station supplies the peak load of 50 MW, 40 MW and 70 MW to three localities. The annual load factor is 0.50 p.u. and the diversity factor of the load at the station is 1.55 the maximum demand on the station and average load respectively will be

 53 MW.
 57.5 MW.
  51.61 MW.
 52 MW.

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