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Power Systems

Power Systems
In which of the following given faults, all the sequence currents are equal?

 LL
 LLG
 LLL
 LG

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Power Systems
The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is

 300 kW
 750 kW
 500 kW
 250 kW

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Power Systems
Which of the following are the fissile materials

 U238 and Th232.
 U235, U233 and Pu239.
  None of these.
 U235 and Th239.

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

 800 Ω
 160 Ω
 200 Ω
 400 Ω

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

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

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Power Systems
In a power system with negligible resistance, the fault current at a point is 8.00 pu. The series reactance is to be included at the fault point to limit the short circuit. current to 5.00 pu is

 0.125 pu.
 0.200 pu.
 0.075 pu.
  3.000 pu.

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