GATE (TF) Textile 2003 Question Paper Solution | GATE/2003/TF/57

Question 57 (Textile Engineering & Fibre Science)

An eight head comber is running at 200 nips/min. The lap feed is 60 ktex and noil level is 20%. If the lap feed/nip is 7mm, the production is kg/hr at 90% machine efficiency will be

(A)	25
(B)	29
(C)	33
(D)	40

[Show Answer]

Option B is correct.

No.of head=8

Comber speed=200 nips/min

Count of feed lap=60ktex

Noil%=20%

Feed/nip=7mm

Efficiency=90%

Machine production(kg/hr)=?

Formula-

$Production(\frac{kg}{hr})=\frac{Heads \times \frac{nips}{min} \times \frac{gm}{meter} \times (1-noil per) \times \frac{feed}{nip} \times efficiency \times 60}{1000}$

$Production(\frac{kg}{hr})=\frac{8 \times 200 \times 60 \times (1-\frac{20}{100}) \times 7 \times 10^-3 \times \frac{90}{100} \times 60}{1000}$

$Production(\frac{kg}{hr})=\frac{96000\times (1-0.2) \times 7 \times 10^-3 \times 0.9\times 60}{1000}$

$Production(\frac{kg}{hr})=\frac{96000\times 0.8 \times 0.007 \times 0.9\times 60}{1000}$

$Production(\frac{kg}{hr})=\frac{29030.4}{1000}$

$Production(\frac{kg}{hr})=29$

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