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EEE :: Economics of Power Generation

  1. Which of the following is not a source of power ?

  2. A.

     Thermocouple

    B.

     Photovoltaic cell

    C.

     Solar cell

    D.

     Photoelectric cell


  3. Depreciation charges are high in case of

  4. A.

     thermal plant

    B.

     diesel plant

    C.

     hydroelectric plant

    D.

     none of the above


  5. _______ is invariably used as base load plant.

  6. A.

     Diesel engine plant

    B.

     Nuclear power plant

    C.

     Gas turbine plant

    D.

     Pumped storage plant


  7. An alternator coupled to a _____ runs at slow speed, as compared to as compared to others.

  8. A.

     diesel engine

    B.

     hydraulic turbine

    C.

     steam turbine

    D.

     gas turbine


  9. For a consumer the most economical power factor is generally

  10. A.

     0.5 lagging

    B.

     0.5 leading

    C.

     0.95 lagging

    D.

     0.95 leading


  11. A pilot exciter is provided on generators for which of the following reasons ?

  12. A.

     To excite the poles of main exciter

    B.

     To provide requisite starting torque to main exciter

    C.

     To provide requisite starting torque to generator

    D.

     None of the above


  13. Which of the following source of power is least reliable ?

  14. A.

     Solar energy

    B.

     Geothermal power

    C.

     Wind power

    D.

     MHD


  15. Which lightening stroke is most dangerous ?

  16. A.

     Direct stroke on line conductor

    B.

     Indirect stroke on conductor

    C.

     Direct stroke on tower top

    D.

     Direct stroke on ground wire


  17. Direct conversion of heat into electric power is possible through

  18. A.

     fuel cell

    B.

     batteries

    C.

     thermionic converter

    D.

     all of the above


  19. Direct conversion of heat into electrical energy is possible through

  20. A.

     fuel cells

    B.

     solar cells

    C.

     MHD generators

    D.

     none of the above