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Power Systems

Power Systems
Pipes carrying steam are generally of

  steel.
 cast iron.
 aluminium.
 cobalt.

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Power Systems
Transmission line parameters of the short transmission line are

 1,Z,0,1
 1,0,Y,1
 1,Z,Y,1
 Z,0,Y,1

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Power Systems
The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong?

 Unreliable convergence
 Slow convergence
 Choice of slack bus affects the convergence
 A good initial guess for voltages is essential for convergence

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Power Systems
The load duration curve for a system is 8 hours 30 MW, 16 hours 25 MW and 24 hours 20 MW. The load factor will be

 0.25.
  0.83.
 0.44.
 1.3.

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Power Systems
The conversion ratio of a breeder reactor is

  equal to unity.
 less than unity.
 none of above.
  more than unity.

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Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 800 Ω
 400 Ω
 160 Ω
 200 Ω

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