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Power Systems

Power Systems
A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

 3d
 5d
 2d
 d

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Power Systems
Where do compounding done in thermal power plants

  Turbine.
  Coal handling plant.
  Generator.
  Ash handling plant.

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Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

 it is cheaper and lighter
 it is more conductive
 its tensile strength is more
 costlier

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Power Systems
Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line)

 (Zs - Zl)/(Zs + Zl)
 2Zl/(Zs + Zl)
 (Zl - Zs)/(Zs + Zl)
 2Zs/(Zs + Zl)

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Power Systems
Objectives of power system is/are

 Rated voltage and frequency has to be supplied to the consumers
 Cost of electrical energy per KWh is to be minimum
 nether 1 nor 2
 both 1 and 2

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Power Systems
Which of the following is an impulse turbine

  Pelton turbine.
  Kaplan turbine.
  None of above.
  Francis turbine.

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