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Power Systems

Power Systems
The average thermal efficiency of a modern nuclear power plant is about

 60 %.
 80 %.
  30 %.
 40 %.

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Power Systems
The per unit impedance Z(pu) is given by

 ZΩ* (kVA)b/(KV)²b
 ZΩ* (MVA)b*100/(KV)²b
 ZΩ* (MVA)b/(KV)²b
 ZΩ* (MVA)b/((KV)²b *100)

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Power Systems
Inductance of transmission line will decrease when

 both GMD and GMR increase
 both GMD and GMR decrease
 GMD increase and GMR decrease
 GMD decrease and GMR increase

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Power Systems
Based on the discharge, Kaplan turbine will discharge

 >10000 lpm
 1000 lpm

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Power Systems
The fact that current density is higher at the surface when compared to centre is known as

 skin effect
 carona
All of these
 proximity effect

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

 1.0.
 0.75.
  0.99.
 1.35.

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