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Power Systems

Power Systems
Based on the discharge, Kaplan turbine will discharge

 1000 lpm
 >10000 lpm

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Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 400 Ω
 200 Ω
 800 Ω
 160 Ω

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Power Systems
The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be

 420 Ω
 400 Ω
 210 Ω
 840 Ω

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Power Systems
String efficiency depends upon

 no. of SCR in the string.
 voltage rating of one SCR.
 voltage rating of whole string.
  all of these.

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Power Systems
Units of incremental cost is

 MWhr/Rs
 Rs/MWhr
 RsMW/hr
 Rs/hr

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Power Systems
The only place where slip ring induction motors used in thermal power plants is

  lubrication oil pumps.
  none of above.
  coal handling plant.
  conveyors.

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