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    Workshop Technology Online Quiz

    Mechanical Engineering Online Quiz: Workshop Technology


    1. The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
    Correct
    Incorrect

    2. The correct sequence for preparing a billet for extrusion process is pickling, alkaline cleaning, phosphate coating and lubricating with reactive soap.
    Yes
    No

    3. In a cold chamber die casting machine, a measured quantity of molten metal is brought in a ladle from the melting pot to a chamber and forced into the closed die section by applying hydraulic pressure upon the plunger.
    Correct
    Incorrect

    4. If neutral flame is used in oxyacetylene welding, both oxygen and acetylene cylinders of the same capacity will be emptied at the same time.
    Correct
    Incorrect

    5. The length of hacksaw blade is the distance between the outside edges of the holes which fits over the pins.
    Agree
    Disagree

    6. 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.
    Lower
    Higher

    7. Fin is a casting defect which is due to thin projections of metal not intended as a part of casting.
    Correct
    Incorrect

    8. Shrinkage allowance is made by adding to external dimensions and subtracting from internal dimensions.
    Agree
    Disagree

    9. An oxidising flame is obtained when equal volumes of oxygen and acetylene are supplied.
    True
    False

    10. The operation of cutting a number of holes evenly spaced in a regular pattern on a sheet of metal is called perforating.
    Agree
    Disagree

    11. When two metal pieces of different thicknesses are to be welded by projection welding, then the projections should be made on ________ metal piece.
    Thinner
    Thicker

    12. A process used for making thin phosphate coating on steel is called Parkerising.
    Correct
    Incorrect

    13. The welding set up is said to have reversed polarity when the work is connected to the negative terminal and the electrode holder to the positive terminal.
    Agree
    Disagree

    14. A saw which cuts wood during the return stroke of the saw is known as
    Push saw
    Pull saw or draw saw

    15. Scab is a casting defect which occurs as sand patches on the upper surface of a casting.
    True
    False

    16. Forming is the operation of removing metal to the desired shape from the edge of a plate.
    Correct
    Incorrect

    17. The vertical welding does not require plate edge preparation up to 16 mm thickness.
    Correct
    Incorrect

    18. In electric resistance welding, pressure is applied just after the completion of current.
    True
    False

    19. When the weld is made from left to right, it is known as backhand welding.
    Agree
    Disagree

    20. Metal patterns require ________ draft allowance than wooden patterns.
    More
    Less

         Score =

    Correct answers:

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    Item Reviewed: Workshop Technology Online Quiz Rating: 5 Reviewed By: Pranab Debnath
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