Home / Mechanical Engineering / Steam Boilers and Engines :: Section 5

Mechanical Engineering :: Steam Boilers and Engines

  1. Clearance ratio is the ratio of

  2. A.

    clearance volume to the swept volume

    B.

    clearance volume to the volume at cut-off

    C.

    volume at cut-off to the swept volume

    D.

    swept volume to the clearance volume


  3. In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as

  4. A.

    50° C and normal atmospheric pressure

    B.

    50° C and 1.1 bar pressure

    C.

    100° C and normal atmospheric pressure

    D.

    100° C and 1.1 bar pressure


  5. A condenser maintains a low pressure (below atmospheric) so as to obtain the maximum possible energy from steam and thus to secure a high efficiency.

  6. A.

    Agree

    B.

    Disagree


  7. The amount of water evaporated from and at 100° C into dry and saturated steam is called evaporative capacity of a boiler.

  8. A.

    Yes

    B.

    No


  9. The difference between the atmospheric pressure and the absolute pressure is known as vacuum in a condenser.

  10. A.

    Agree

    B.

    Disagree