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Mechanical Engineering :: Workshop Technology

  1. Acetylene gas is stored in cylinders in

  2. A.
    solid form
    B.
    gaseous form
    C.
    liquid form
    D.
    any one of these

  3. Which one of the following material will require the largest size of riser for the same size of casting?

  4. A.
    Aluminium
    B.
    Cast iron
    C.
    Steel
    D.
    Copper

  5. The consumable electrode is used in

  6. A.
    carbon arc welding
    B.
    submerged arc welding
    C.
    TIG arc welding
    D.
    MIG arc welding

  7. The operation of cutting a sheet of metal in a straight line along the length, is known as

  8. A.
    plunging
    B.
    notching
    C.
    slitting
    D.
    forming

  9. Forming is the operation of removing metal to the desired shape from the edge of a plate.

  10. A.
    Correct
    B.
    Incorrect

  11. Cold working of metal increases

  12. A.
    tensile strength
    B.
    yield strength
    C.
    hardness
    D.
    all of these

  13. In welding aluminium with TIG arc welding, alternating current is used.

  14. A.
    Correct
    B.
    Incorrect

  15. Linde welding uses

  16. A.
    neutral flame and right-ward technique
    B.
    oxidising flame and left-ward technique
    C.
    neutral flame and left-ward technique
    D.
    carburising flame and right-ward technique

  17. The purpose of a gate is to

  18. 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 molten metal from pouring basin to gate

  19. When two pieces of different metals are to be welded by projection welding, then the projection should be made on the metal piece having __________ conductivity.

  20. A.
    lower
    B.
    higher