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Mechanical Engineering :: Steam Boilers and Engines

  1. Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.

  2. A.

    True

    B.

    False


  3. Which of the following is required for a steam condensing plant ?

  4. A.

    Condenser

    B.

    Condensate pump

    C.

    Air extraction pump

    D.

    all of these


  5. The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.

  6. A.

    Agree

    B.

    Disagree


  7. There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called

  8. A.

    wet steam

    B.

    saturated steam

    C.

    superheated steam

    D.

    cushion steam


  9. The ratio of the volume at cut-off to the swept volume is called

  10. A.

    cut-off ratio

    B.

    expansion ratio

    C.

    clearance ratio

    D.

    none of these