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Power Systems

Power Systems
The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be

 500
 450
 900
 250

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Power Systems
The only place where slip ring induction motors used in thermal power plants is

  none of above.
  conveyors.
  lubrication oil pumps.
  coal handling plant.

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Power Systems
Which of following is a medium and low head turbines

  Kaplan and Francis turbines.
  Pelton and Kaplan turbines.
  None of above.
  Francis and Kaplan turbines.

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Power Systems
Electrostatic precipitators in thermal power plants are used for

 remove moisture from the cole
 removal of ash from flue gas
 control flow rate
All of these

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Power Systems
For accurate load flow calculations on large power systems, the best method is

All of these
 N-R method
 G-S method
 Decoupled method

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Power Systems
Transmission line parameters of the short transmission line are

 1,Z,0,1
 1,Z,Y,1
 Z,0,Y,1
 1,0,Y,1

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