Power Systems
The thermal efficiency of BWR is

 less than that of PWR.
  equal to that of PWR.
None of these
 greater than that of PWR.

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

All of these
 To collect the dust particles from the flue gases
 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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