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Power Systems

Power Systems
Which of following materials can be used as coolant

 Helium.
 Heavy water.
 CO2.
  Any of above.

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Power Systems
Equal area criterion gives the information regarding

 absolute stability
 relative stability
 stability region
 swing curves

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Power Systems
In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%.

 20 kV
 83.76 kV
 48.36 kV
 52.84 kV

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Power Systems
Hydro-graph is similar to

 energy load curve.
 both B and C.
 mass curve.
  load curve.

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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

 1500 MW
 1000 MW
 1250 MW
 750 MW

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Power Systems
Tarapur nuclear power plant has which type of reactor?

 None of these.
 Pressurized water reactors.
 Boiling water type.
 CANDU type reactors.

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