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Power Systems

Power Systems
Find the number of strands of ACSR conductor for 3 layer transmission line?

 29
 1
 7
 19

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Power Systems
If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

 1 pu
 0.8 pu
 0.4 pu
 0.5 pu

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Power Systems
A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle?

 45°
 30°
 35°
 60°

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Power Systems
In nuclear chain fission reaction each neutron causing fission produces

 one new neutron.
 no new neutron.
  at least one new neutron.
 less than one new neutron.

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Power Systems
Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load?

 0.098 pu
 0.98 pu
 1 pu
 1.098 pu

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

 coolant.
 electrode.
  moderator.
 fuel.

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