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Power Systems

Power Systems
The amount of ash content in Indian coal

 20 %.
 35 %.
  45 %.
  60 %.

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Power Systems
Generation of of one watt needs about ______________ fission per second

 3.1.
 3.1 × 107.
  3.1 × 1010.
 3.1 × 106.

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Power Systems
Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation

  20160 J.
  20060 J.
 23060 J.
 25060 J.

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Power Systems
On what factors does the selection of a water turbine depend

 Nature of load.
  All of above.
 Speed.
 Working head.

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Power Systems
Which cooling is preferred for large turbine generator

  Nitrogen cooling.
  Oxygen cooling.
  Hydrogen cooling.
  None of these.

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Power Systems
In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

 0.5
 0.25
 0.75
 1

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