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Power Systems

Power Systems
Breaking current is a ------------------ value?

 RMS
 maximum
 any of the above
 average

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Power Systems
Which of the following statements is/are true? By increasing of temperature,

 neither 1 nor 2
 both 1 and 2
 sag increase
 tension decrease

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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
 36. 36 kV
 18.18 kV

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Power Systems
A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

 40 %.
  30.7 %.
 40.85 %.
  30.26 %.

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Power Systems
The annual depreciation of hydro power plant is about

 15 - 20 %.
  0.5 - 1.5 %.
 20 - 25 %.
 10 - 15 %.

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Power Systems
Attenuation occurs due to

 conductance
 resistance
 both 1 and 3
 inductance

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