Power Systems
The steam power plant efficiency can be improved by

  using high temperature and high pressure steam.
 decreasing the load on the plant.
 burning large amount of coal.
 using large quantity of water.

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Power Systems
Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation?

 initial cost is low
 single unit can be used as both capacitance and inductor by adjusting the excitation
 smooth voltage regulation is possible by controlling excitation
 both 1 and 2

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