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Power Systems

Power Systems
Percentage of carbon is highest in

  bituminous coal.
  lignite coal.
  anthracite coal.
  coal gas.

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Power Systems
Which of the following are the fissile materials

  None of these.
 U235, U233 and Pu239.
 U238 and Th232.
 U235 and Th239.

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Power Systems
When series reactor is used in generating stations, the fault current magnitude is

 reduced
 increased
 any of the above
 remains unaffected

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Power Systems
Example of base load stations are

  both A and B.
  gas turbine.
  hydro.
  thermal.

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Power Systems
A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is

 1.093 mH
 1.182 mH
 1.232 mH
 1.043 mH

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Power Systems
Which of the following insulator is practically used for railway crossings?

 string insulator
 pin insulator
 strain insulator
All of these

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