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Power Systems

Power Systems
One atomic mass unit is equivalent to

 180.5 MeV.
  931.4 MeV.
 120.4 MeV.
 251.2 MeV.

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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.
 0.075 pu.
  3.000 pu.
 0.200 pu.

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Power Systems
If sag in an overhead line increase, tension in the line

None of these
 remains same
 decrease
 increase

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Power Systems
The presence of earth in case of overhead lines

 decrease capacitance
 decrease inducatance
 increase inductance
 increase capacitance

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Power Systems
MCB stands for

  molded circuit breaker.
  miniature circuit breaker.
  minimum capacity breaker.
  maximum capacity breaker.

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Power Systems
The function of draft tube is reaction turbine is to

 reduce water hammer.
 all of above.
 increase flow rate of water.
  convert kinetic energy of water.

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