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Mechanical Engineering :: Workshop Technology

  1. In a _______, the molten metal is poured and allowed to solidify while the mould is revolving.

  2. A.

     Die casting method

    B.

     Slush casting method

    C.

     Permanent mould casting method

    D.

     Centrifugal casting method


  3. A sand employed on the faces of the pattern before moulding, is called

  4. A.

     Green sand

    B.

     Dry sand

    C.

     Loam sand

    D.

     Parting sand


  5. The mode of deformation of the metal during spinning is

  6. A.

     Bending

    B.

     Stretching

    C.

     Rolling and stretching

    D.

     Bending and stretching


  7. The material which can be best cut with oxygen cutting process is

  8. A.

     Mild steel

    B.

     Brass

    C.

     Copper

    D.

     Aluminium


  9. During hot working of metals

  10. A.

     Porosity of the metal is largely eliminated

    B.

     Grain structure of the metal is refined

    C.

     Mechanical properties are improved due to refinement of grains

    D.

     All of the above


  11. The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.

  12. A.

     Same as

    B.

     Less than

    C.

     More than

    D.

     None of these