Power Systems
Telecommunication lines are transposed to reduce the

 voltage level
All of these
 efficiency
 radio interference in communication lines

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Power Systems
In coal fired thermal power stations, what are the electrostatic precipitators used for?

 To collect the dust particles from the flue gases
All of these
 To keep the air heaters clean
 To remove dust particles setting on the bus bar conductors in the station switch yard

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