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Power Systems

Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 100
 1
 10
 5

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Power Systems
Main bus bar protection scheme is /are

  differential protection.
  both fault bus and differential protection.
  none of these.
  fault bus protection.

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Power Systems
Direct conversion of heat energy into electrical energy is possible through

 Fuel or solar cell.
 Both A and C.
 MHD generator.
 Thermal converters.

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Power Systems
When reactance grounding is used in network, the voltage between neutral and ground is

 3×IR0 × Xn
 both 1 and 3
 IN × Xn
 IR0 × Xn

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Power Systems
Ships are usually supplied power by

 None of above.
 Steam accumulator.
  Diesel engine.
 Hydraulic turbine.

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Power Systems
Equal area criteria is used for

 relative stability of the system
 nether 1 nor 2
 absolute stability of the system
 either 1 or 2

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