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Power Systems

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

 100
 10
 1
 5

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Power Systems
In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is

  1.
 5.
  un changed.
 10.

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Power Systems
Characteristics of arc quenching medium is/are

 Non flammable
All of these
 High dielectric strength
 High thermal conductivity

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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
 250
 450
 900

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Power Systems
Which material is used in controlling chain reaction in a nuclear reactor

 Thorium.
  Boron.
 Beryllium.
 Heavy water.

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Power Systems
Breaking current is a ------------------ value?

 average
 any of the above
 RMS
 maximum

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