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Power Systems

Power Systems
In thermal plant most of the energy is wasted in

 boiler
 condenser
 ESP
 turbines

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Power Systems
If we increase the length of the transmission line, the charging current

 increases
 decreases
None of these
 remains unaffected

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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

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

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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.
 8113.27.
 10000.32.
 15515.22.

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Power Systems
Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV?

 10
 21
 20
 13

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Power Systems
If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is

 1250 MW
 1500 MW
 750 MW
 1000 MW

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