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Power Systems

Power Systems
One fission of U235 releases energy of

 335 MeV.
 525 MeV.
  200 MeV.
 435 MeV.

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Power Systems
An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is

 400 MVA
 200 MVA
 100 MVA
 500 MVA

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Power Systems
The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of

 high energy loss in condenser
 high energy loss in boilers
 low steam turbine mechanical efficiency
 low alternator efficiency

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Power Systems
A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

 1.5 cm
 5 cm
 1 cm
 15 cm

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Power Systems
Critical mass of the fuel is the amount required to make the multiplication factor

 0.5.
  equal to factor.
 less than 1.
 more than 1.

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Power Systems
The ratio of reset to pick up current for an induction cup relay is approximately

 0.75.
 1.35.
 1.0.
  0.99.

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