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Power Systems

Power Systems
Surge tank is kept very close to the

 spill way
 pen stock
 turbine
 generator

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Power Systems
Which of the following is low specific speed turbine?

 Kaplan
 Pelton
 Francis
None of these

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Power Systems
The skin effect of conductor will increase when

 frequency decrease
 resistivity decrease
 diameter decrease
All of these

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Power Systems
Due to proximity effect, the increase in conductor resistance is not negligible in

 overhead transmission lines
 communication lines
 underground cable
All of these

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Power Systems
Lightning arresters are used for

 protection of equipment from open circuits
 protection of equipment from external lightning
 protection of equipment from short circuits
All of these

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Power Systems
Electrostatic precipitators in thermal power plants are used for

 removal of ash from flue gas
 remove moisture from the cole
 control flow rate
All of these

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