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Mechanical Engineering :: Workshop Technology

  1. The welding process used in joining mild steel shanks to high speed drills, is

  2. A.

     Spot welding

    B.

     Seam welding

    C.

     Flash butt welding

    D.

     Upset butt welding


  3. For cutting brass, the hacksaw blade should have ________ teeth per 25 mm.

  4. A.

     14

    B.

     24

    C.

     32

    D.

     40


  5. In arc welding, the electric arc is produced between the work and the electrode by

  6. A.

     Voltage

    B.

     Flow of current

    C.

     Contact resistance

    D.

     All of these


  7. A file removes the metal during

  8. A.

     Forward stroke

    B.

     Return stroke

    C.

     Both forward and return strokes

    D.

     None of these


  9. Lancing is the operation of

  10. A.

     Cutting a sheet of metal in a straight line along the length

    B.

     Removal of metal to the desired shape from the edge of a plate

    C.

     Cutting a sheet of metal through part of its length and then bending the cut portion

    D.

     Bending a sheet of metal along a curved axis


  11. Notching is the operation of

  12. A.

     Cutting a sheet of metal in a straight line along the length

    B.

     Removal of metal to the desired shape from the edge of a plate

    C.

     Cutting a sheet of metal through part of its length and then bending the cut portion

    D.

     Bending a sheet of metal along a curved axis


  13. When the dimension is expressed as, then the tolerance is

  14. A.

     0.035 mm

    B.

     0.025 mm

    C.

     0.01 mm

    D.

     0.06 mm


  15. In forehand welding, the weld is made

  16. A.

     From left to right

    B.

     From right to left

    C.

     First from left to right and then from right to left

    D.

     Either from left to right or from right to left


  17. A diamond pointed chisel is used for cutting

  18. A.

     Flat surfaces

    B.

     Grooves

    C.

     Key-ways

    D.

     V-shaped grooves


  19. Spot welding is used for welding

  20. A.

     Lap joints in plates having 0.025 mm to 1.25 mm thickness

    B.

     Lap joints in plates having thickness above 3 mm

    C.

     Butt joints in plates having 0.025 mm to 1.25 mm thickness

    D.

     Butt joints in plates having thickness above 3 mm