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EEE :: Economics of Power Generation

  1. For high value of diversity factor, a power station of given installed capacity will be in a position to supply

  2. A.

     Less number of consumers

    B.

     More number of consumers

    C.

     Neither (A) nor (B)

    D.

     Either (A) or (B)

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  3. Most efficient plants are normally used as

  4. A.

     peak load plants

    B.

     base load plants

    C.

     either (A) or (B)

    D.

     none of the above

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  5. Which of the following plants is almost inevitably used as base load plant ?

  6. A.

     Diesel engine plant

    B.

     Gas turbine plant

    C.

     Nuclear power plant

    D.

     Pumped storage plant

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  7. In ______ fuel transportation cost is least.

  8. A.

     nuclear power plants

    B.

     diesel generating plants

    C.

     steam power stations

    D.

     none of the above

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  9. Large capacity generators are invariably

  10. A.

     water cooled

    B.

     natural air cooled

    C.

     forced air cooled

    D.

     hydrogen cooled

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  11. Generators for peak load plants are usually designed for maximum efficiency at

  12. A.

     25 to 50 percent full load

    B.

     50 to 75 percent full load

    C.

     full load

    D.

     25 percent overload

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  13. A synchronous condenser is virtually which of the following?

  14. A.

     Induction motor

    B.

     Under excited synchronous motor

    C.

     Over excited synchronous motor

    D.

     D.C. generator

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  15. Which of the following is the disadvantage of a synchronous condenser ?

  16. A.

     High maintenance cost

    B.

     Continuous losses in motor

    C.

     Noise

    D.

     All of the above

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  17. In a distribution system, in order to improve power factor, the synchronous capacitors are installed

  18. A.

     at the receiving end

    B.

     at the sending end

    C.

     either (A) or (B)

    D.

     none of the above

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  19. In two part tariff, variation in load factor will affect

  20. A.

     fixed charges

    B.

     operating or running charges

    C.

     both (A) and (B)

    D.

     either (A) or (B)

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