Textile Engineering Gate 2011 Questions with Answer
Ques 40 GATE 2011
The cross-section of spinneret used for producing hollow fibres is
Ques 41 GATE 2011
A filament yarn of 300 denier is being spun at a take up speed of 900 m/min. Assuming the density of the melt as 1.2 g/cm³, the throughput speed (cm³/min) at the spinneret would be
Ques 42 GATE 2011
Given below are the load-elongation characteristics of two monofilament yarns A and B having the same denier and the work of rupture. Consider the following assertion [a] and reason [r].
[r] The work of rupture of the two fabrics is the same.
Ques 43 GATE 2011
Consider the following assertion [a] and reason [r] in the case of high bulk yarn.
[a] Acrylic high bulk yarn is a commercial success but not the polypropylene high bulk yarn.
[r] Amorphous orientation can be easily frozen in acrylic fibres but not in polypropylene fibres.
Ques 44 GATE 2011
The coarsest yarn amongst the following is
Ques 45 GATE 2011
Consider the following data for a synthetic fibre. Density of amorphous region (ρa) as 1.33 g/cm³, density of crystalline region (ρc) as 1.45 g/cm³, density of fibre (ρf) as 1.36 g/cm³ and diameter of the fibre as 14 micron. Denier of the fibre is approximately
Ques 46 GATE 2011
Consider the following data for a synthetic fibre. Density of amorphous region (ρa) as 1.33 g/cm³, density of crystalline region (ρc) as 1.45 g/cm³, density of fibre (ρf) as 1.36 g/cm³ and diameter of the fibre as 14 micron.
Density of the above fibre increased by 2.2% when drawn. The corresponding change (%) in crystallinity is approximately
Ques 47 GATE 2011
If the 50% span length of a cotton fibre is 13.5 mm and the uniformity ratio is 45%, then 2.5% span length of this fibre in mm would be
Ques 48 GATE 2011
The nep setting on an evenness tester which will give the highest nep count is
Ques 49 GATE 2011
The property of fabric which influences drape the most is
Ques 50 GATE 2011
A yarn has mean strength of 10 N with a standard deviation of 1 N. The number of tests which must be conducted, so that at 95% confidence level, maximum error in the estimated mean strength is 1.96%, is
Ques 51 GATE 2011
Match the items in Group I with those in Group II.
| Group I | Group II |
|---|---|
| P. Crystallinity | 4. Differential scanning calorimeter |
| Q. Surface features | 3. Scanning electron microscope |
| R. Orientation | 1. Sonic modulus tester |
| S. Functional groups | 2. Infrared spectrophotometer |
Ques 52 GATE 2011
Two cotton fibre varieties X and Y having linear density of 3.1 and 3.9 (micrograms/25.4 mm), respectively, are tested on an airflow instrument. The highest flow rate is obtained in the case of
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