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Power Systems

Power Systems
If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be

 25.
 50.
 10.
 15.

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Power Systems
The function of reflector is to

  bounce back most of the neutrons that escape from the fuel core.
 none of above.
 stop the chain reaction.
 reduce the speed of the neutrons.

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Power Systems
For a lossy transmission line, the characteristic impedance does not depend on

 The permittivity of the dielectric separating the conductor.
 The operating frequency of the line.
 The load terminating the line.
 The conductivity of conductors.

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Power Systems
Which of the following transformer is used in sub station for operating a protective relay?

All of these
 distribution transformer
 capacitor voltage transformer
 auto transformer

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Power Systems
Calorific value of solid fuel is expressed as

  Cal / gm.
  KCal / lt.
  KCal / gm.
  Cal / lt.

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Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.5
 0.75
 0.25
 0.4

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