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Mechanical Engineering :: Steam Boilers and Engines

  1. A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

  2. A.

    150 kg/h

    B.

    210 kg/h

    C.

    280 kg/h

    D.

    340 kg/h

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  3. Fire tube boilers are limited to a maximum working pressure of

  4. A.

    0.17 MN/m2

    B.

    1.7 MN/m2

    C.

    17 MN/m2

    D.

    170 MN/m2

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  5. The average value of diagram factor lies between

  6. A.

    0.2 to 0.5

    B.

    0.5 to 0.65

    C.

    0.65 to 0.9

    D.

    0.8 to 1.2

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  7. The fittings mounted on the boiler for its proper and safe functioning is a

  8. A.

    water level indicatior

    B.

    pressure gauge

    C.

    safety valve

    D.

    all of these

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  9. The diameter of superheated tubes in a locomotive boiler is

  10. A.

    13 mm

    B.

    31 mm

    C.

    130 mm

    D.

    230 mm

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