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Power Systems

Power Systems
Cheapest plant in operation and maintenance is

  hydroelectric.
  steam power.
  diesel power.
  nuclear.

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Power Systems
Which power plant cannot have single unit of 100 MW capacity

  Diesel engine plant.
 Hydro electric power plant.
 Nuclear power plant.
 Steam power plant.

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Power Systems
The conductor of a 10 Km long single phase, two wire line are separated by a distance of 1.5 m the diameter of each conductor the inductance of the circuit is

 21.2 mH.
  23.8 mH.
 25.8 mH.
 23.33 mH.

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Power Systems
The fact that current density is higher at the surface when compared to centre is known as

All of these
 skin effect
 carona
 proximity effect

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Power Systems
Nuclear fission means

  breaking up of nuclear of heavy atoms into nearly equal parts.
  combination of two light nuclei.
  moderator.
  graphite.

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Power Systems
A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage?

 40 kV
 45 kV
 36 kV
 32 kV

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