GATE (TF) Textile 2003 Question Paper Solution | GATE/2003/TF/63

Question 63 (Textile Engineering & Fibre Science)

A yarn of 16 Ne is spun on a 46 mm diameter rotor spinning machine at 100 m/min. The measured TM in the yarn is 4.4. Considering the loss in machine twist as 10%, the number of fibre layers within the rotor at the yarn formation point will be

(A)	100
(B)	111
(C)	120
(D)	130

[Show Answer]

Option B is correct.

Given-
Count of yarn=16s Ne

Dia of rotor(D)=46mm

Machine speed(FRD)=100m/min

TM=4.4

Loss in machine twist=10%

The number of fibre layers within the rotor at the yarn formation point=?

Wind-on speed= $\frac{FRD}{\pi \times D}$

Wind-on speed= $\frac{100}{3.14\times 46 \times 10^-3}$

Wind-on speed= $\frac{100}{0.1444}$

Wind-on speed=692.5

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