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Power Systems

Power Systems
The total number of strands in a ACSR conductor are 7, then find the layer number?

 3
 2
 5
 7

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Power Systems
Where is the draft tube of a hydroelectric plant that is an airtight pipe located

 At the beginning of the penstock.
 Near the surge tank.
  In between the penstock and runner.
 In between the runner exhaust and the tail race.

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Power Systems
Characteristics of arc quenching medium is/are

All of these
 High dielectric strength
 Non flammable
 High thermal conductivity

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Power Systems
Earthing switch is used for

 measuring of safety voltage
All of these
 protection of equipment from ground faults
 discharging residual energies

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Power Systems
Maximum power transfer in a transmission line can be obtained by

None of these
 increasing voltage level
 reducing reactance
 either 1 or 2

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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

  30.7 %.
 40.85 %.
  30.26 %.
 40 %.

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