Home / Mechanical Engineering / Workshop Technology :: Section 1

Mechanical Engineering :: Workshop Technology

  1. The purpose of a riser is to

  2. A.
    deliver molten metal into the mould cavity
    B.
    act as a reservoir for the molten metal
    C.
    feed the molten metal to the casting in order to compensate for the shrinkage
    D.
    deliver the molten metal from pouring basin to gate

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. The blank diameter used in thread rolling will be

  4. A.
    equal to minor diameter of the thread
    B.
    equal to pitch diameter of the thread
    C.
    a little larger than the minor diameter of the thread
    D.
    a little larger than the pitch diameter of the thread

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. The cross-section of a chisel is usually

  6. A.
    rectangular
    B.
    square
    C.
    hexagonal
    D.
    octagonal

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. A plug gauge is used to check the diameter of shafts and studs.

  8. A.
    Correct
    B.
    Incorrect

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. In back-hand welding, the angle between the welding torch and the work is kept as

  10. A.
    30°-40°
    B.
    40°-50°
    C.
    50°-60°
    D.
    60°-70°

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. The machining allowance provided on patterns depends upon

  12. A.
    type of casting metal
    B.
    size and shape of casting
    C.
    method of casting used
    D.
    all of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. In submerged arc welding, an arc is produced between a

  14. A.
    carbon electrode and the work
    B.
    metal electrode and the work
    C.
    bare metal electrode and the work
    D.
    two tungsten electrodes and the work

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. In shielded arc welding

  16. A.
    large electrode is used
    B.
    welding rod coated with slag is used
    C.
    welding rod coated with fluxing material is used
    D.
    none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. In a die casting method, the molten metal is forced into mould under high pressure.

  18. A.
    Correct
    B.
    Incorrect

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. In a centrifugal casting method, the impurities are collected in the centre of the casting.

  20. A.
    Yes
    B.
    No

    View Answer

    Workspace

    Discuss Discuss in Forum