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Power Systems

Power Systems
Which turbine is ideally suited to pumped storage plants

 Impeller.
  Kaplan.
 Pelton.
 Francis.

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Power Systems
Area under the daily curve divided by 24 gives

 maximum demand
 units generated
 maximum load
 average load

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with high percentage of reaction and runner adjust vanes is

  Pelton.
  Impeller.
  Kaplan.
  Francis.

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Power Systems
Earthing switch is used for

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

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Power Systems
Pelton turbine is a ----------- turbine

 inward radial flow
 impulsive
 axial flow
 any of the above

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Power Systems
A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation?

 0.6 lag and 0.8 lead
 0.6 lag and 0.6 lead
 0.8 lag and 0.8 lead
 0.8 lag and 0.6 lead

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