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Power Systems

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

 fuel.
  moderator.
 electrode.
 coolant.

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Power Systems
A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the transmitted voltage?

 30.6 Kv
 100 kV
 18.18 kV
 36. 36 kV

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Power Systems
A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is

 0.5
 0 leading
 0.707 leading
 unity

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Power Systems
Transmission line parameters of the short transmission line are

 1,0,Y,1
 1,Z,0,1
 1,Z,Y,1
 Z,0,Y,1

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Power Systems
The 1st nuclear plant in world was commissioned in

  UAE.
  U.S.S.R.
  U.S.A.
 U.K.

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Power Systems
A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is

 5200 MVA.
 5500 MVA.
  5000 MVA.
  5100 MVA.

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