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
The VSWR of transmission line is

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

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