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Power Systems

Power Systems
Rankine cycle efficiency of a steam power plant is of

  20 - 30 %.
  60 - 80 %.
  45 - 80 %.
  30 - 45 %.

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Power Systems
What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?

 6114.05.
 15515.22.
 10000.32.
 8113.27.

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is

 Kaplan
 Francis
 Pelton
 Impeller

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Power Systems
Condition for maximum voltage regulation

 cosφ = X/R
 tanφ = R/X
 tanφ = X/R
 cosφ = R/X

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Power Systems
In which power plant, the thermal efficiency is quite low

  Hydro power plant.
  Diesel power plant.
  Nuclear power plant.
  Steam power plant.

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Power Systems
A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at an current of 8 Amp. Calculate the radius of wire that will blow off at an current of 1 amp?

  0.2 mm.
 2 mm.
 0.4 mm.
 4 mm.

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