Power Systems
The steam power plant efficiency can be improved by

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

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Power Systems
The VSWR of transmission line is

 Directly proportional to characteristic impedance and inversely to load impedance.
 Proportional to load and characteristic impedance.
  Directly proportional to load impedance and inversely to characteristic impedance.
 Directly proportional to voltage minimum and inversely proportional to voltage maximum.

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