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Mechanical Engineering :: Steam Boilers and Engines

  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)


  3. The heat balance sheet for the boiler shows the

  4. 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


  5. The performance of a boiler is measured by the

  6. 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


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

  8. A.

    Yes

    B.

    No


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

  10. A.

    moisture in fuel

    B.

    dry flue gases

    C.

    steam formation

    D.

    unburnt carbon