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Power Plant Engineering in EE - section-1
  1. The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is

    2. A.

     0.6
    B.

     0.578
    C.

     0.555
    D.

     0.5457

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  2. Load carrying capacity of belt conveyor is about

    3. A.

     20 to 40 tonnes/hr
    B.

     50 to 100 tonnes/hr
    C.

     100 to 150 tonnes/hr
    D.

     150 to 200 tonnes/hr

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  3. The proper indication of incomplete combustion is

    4. A.

     high CO content in flue gases at exit
    B.

     high CO2 content in flue gases at exit
    C.

     high temperature of flue gases
    D.

     the smoking exhaust from chimney

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  4. In case of impulse steam turbine

    5. A.

     there is enthalpy drop in fixed and moving blades
    B.

     there is enthalpy drop only in moving blades
    C.

     there is enthalpy drop in nozzles
    D.

     none of the above

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  5. Load center in a power station is

    6. A.

     Center of coal fields
    B.

     Center of maximum load of equipments
    C.

     Center of gravity of electrical system
    D.

     None of the above

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  6. The percentage O2 by Weight in atmospheric air is

    7. A.

     18%
    B.

     23%
    C.

     77%
    D.

     79%

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  7. Solar thermal power generation can be achieved by

    8. A.

     using focusing collector or heliostates
    B.

     using flat plate collectors
    C.

     using a solar pond
    D.

     any of the above system

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  8. The modern steam turbines are

    9. A.

     impulse turbines
    B.

     reaction turbines
    C.

     impulse-reaction turbines
    D.

     none of the above

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  9. The capacity of large turbo-generators varies from

    10. A.

     20 to 100 MW
    B.

     50 to 300 MW
    C.

     70 to 400 MW
    D.

     100 to 650 MW

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  10. The efficiency of chimney is approximately

    11. A.

     80%
    B.

     40%
    C.

     20%
    D.

     0.25%

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