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Mechanical Engineering :: Steam Boilers and Engines

Steam Boilers and Engines - Section 1
Steam Boilers and Engines - Section 2
Steam Boilers and Engines - Section 3
Steam Boilers and Engines - Section 4
Steam Boilers and Engines - Section 5

  1. A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° to each other, is called

    2. A.

    receiver type compound engine
    B.

    Tandem type compound engine
    C.

    Woolf type compound engine
    D.

    both (a) and (b)

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  2. The heat balance sheet for the boiler shows the

    3. A.

    complete account of heat supplied by 1 kg of dry fuel and the heat consumed
    B.

    moisture present in the fuel
    C.

    steam formed by combustion of hygrogen per kg of fuel
    D.

    all of the above

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  3. The performance of a boiler is measured by the

    4. A.

    amount of water evaporated per hour
    B.

    steam produced in kg/h
    C.

    steam produced in kg/kg of fuel burnt
    D.

    all of these

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  4. The evaporative capacity of a boiler is defined as the evaporation of 15.653 kg of water per hour from and at 100° C.

    5. A.

    Yes
    B.

    No

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  5. The maximum heat loss is a boiler occurs due to

    6. A.

    moisture in fuel
    B.

    dry flue gases
    C.

    steam formation
    D.

    unburnt carbon

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