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Power Systems

Power Systems
Pipes carrying steam are generally of

 aluminium.
  steel.
 cast iron.
 cobalt.

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Power Systems
When series reactor is used in generating stations, the fault current magnitude is

 reduced
 remains unaffected
 any of the above
 increased

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

 0.8 lead
 0.6 lead
 0.6 lag
 0.8 lag

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Power Systems
The skin effect of conductor will increase when

 diameter decrease
All of these
 frequency decrease
 resistivity decrease

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

  moderator.
 fuel.
 coolant.
 electrode.

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Power Systems
The power output from an hydroelectric plants depend on

 type of dam, head, system efficiency.
 type of turbine, type of dam and type of catchment area.
  discharge, system efficiency.
 type of dam, type of catchment area and discharge.

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