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Which of the following thread packages are not suitable for use on industrial machines ?

I. Spools
II. Cops
III. Vicones
IV. Cones

  • A.I and IV are correct
  • B.III and IV are correct
  • C.I and II are correct
  • D.II and III are correct

Answer: C

Spools and cops are the packages that are unsuitable for industrial machines: spools are small, used for domestic sewing, and cops are the conical bobbins taken off the spinning frame, meant for weaving shuttles and not for industrial sewing. Cones and vicones, wound on tapered tubes, run off fast and in large lengths, and so suit industrial sewing machines. The answer is I and II (spools and cops).

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