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Power Systems

Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 10 MJ
 50 MJ
 5 MJ
 500 MJ

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Power Systems
The steam power plant efficiency can be improved by

 using large quantity of water.
 decreasing the load on the plant.
 burning large amount of coal.
  using high temperature and high pressure steam.

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Power Systems
Which of the following relays are used in protection of medium transmission lines?

 any of the above
 Admittance relays
 Impedance relays
 Mho relays

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Power Systems
The main advantage of the Decoupled Load Flow (DLF) as compared to the NR method is

 reduced memory requirements in storing the Jacobian elements
 accuracy is more
 number of iterations are less
All of these

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Power Systems
Mho relay is usually employed for protection of

 any line
 medium transmission lines only
 long transmission lines only
 short transmission lines only

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Power Systems
The conversion ratio of breeder reactor are

 1.
  greater than 1.
 less than 1.
 none of above.

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