Textile Engineering > GATE 2013 > Spinning
Consider the following particulars for a spinning line producing 30 tex yarn from 150 militex polyester fibre.
Mass CV of card sliver: 3%
Mass CV added at draw-frame: 2%
Mass CV added at speed-frame: 3%
Mass CV added at ring-frame: 7%
Number of doubling at draw-frame: 6
Number of draw-frame passage: 1
The mass CV% of roving is approximately
Mass CV of card sliver: 3%
Mass CV added at draw-frame: 2%
Mass CV added at speed-frame: 3%
Mass CV added at ring-frame: 7%
Number of doubling at draw-frame: 6
Number of draw-frame passage: 1
The mass CV% of roving is approximately
Correct : c
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