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Power Systems

Power Systems
A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base?

 1 pu
 0.2 pu
 0.25 pu
 5 pu

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

 5 MJ
 50 MJ
 10 MJ
 500 MJ

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Power Systems
Graphite is use din nuclear plant as a / an

 coolant.
  moderator.
 electrode.
 fuel.

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Power Systems
Which of the following are the fissile materials

  None of these.
 U235 and Th239.
 U235, U233 and Pu239.
 U238 and Th232.

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Power Systems
Which of the following statements is/are true? In case of parallel transmission lines

 fault current increases
 stability increases
 both 1 and 3
 fault current reduces

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Power Systems
A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system?

 1.476 A.
 14.7 mA.
 1 A.
  14.76 A.

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