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Mechanical Engineering :: Steam Boilers and Engines

  1. The natural draught is produced by

  2. A.

    steam jet

    B.

    centrifugal fan

    C.

    chimney

    D.

    both (a) and (b)

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  3. Willian's line for the steam engine is a straight line relationship between the steam consumption per hour and

  4. A.

    indicated power

    B.

    brake power

    C.

    efficiency

    D.

    pressure of steam

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  5. The temperature of condensate is __________ on leaving the condenser than that of circulating water at inlet.

  6. A.

    higher

    B.

    lower

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  7. A draught produced by a chimney due to the difference of densities between the hot gases inside the chimney and cold atmospheric air outside it, is called natural draught.

  8. A.

    Yes

    B.

    No

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  9. Which of the following statement is correct ?

  10. A.

    A fire tube boiler occupies less space than a water tube boiler, for a given power.

    B.

    Steam at a high pressure and in large quantities can be produced with a simple vertical boiler.

    C.

    A simple vertical boiler has one fire tube.

    D.

    all of the above

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