Textile Engineering Gate 2017 Questions with Answer
Ques 40 GATE 2017
During crystallization of polyester
Ques 41 GATE 2017
Which of the following fibre(s) is (are) manufactured by melt spinning process
P. Viscose
Q. Cellulose acetate
R. Nylon-6
S. Aramid
Ques 42 GATE 2017
Shrinkage of cotton fabric during wetting is caused by
Ques 43 GATE 2017
Group I contains techniques of fibre manufacturing. Group II gives the physical phenomena associated with these techniques. Match the technique with the phenomenon
| Group I | Group II |
|---|---|
| P. Melt spinning | 3. No solvent diffusion |
| Q. Wet spinning | 2. Diffusion of both solvent and non-solvent |
| R. Dry spinning | 1. Diffusion of only solvent |
Ques 44 GATE 2017
The average molecular mass, in g/mol, of nylon-6 polymer, having average degree of polymerization of 100, is (given S=32 amu, N=14 amu, O=16 amu, C=12 amu, H=1 amu)
Ques 45 GATE 2017
Group I consists of names of fibres. Group II gives characteristic structural features of these fibres. Match the fibre from Group I to its respective feature from Group II
| Group I | Group II |
|---|---|
| P. Cotton | 2. Primary and secondary wall |
| Q. Jute | 4. Multicellular |
| R. Wool | 1. Para- and ortho-cortex |
| S. Silk | 3. Fibroin β-sheets |
Ques 46 GATE 2017
Wool gives warmth because it has
P. A helical structure which can entrap air
Q. High heat of sorption
R. Low crystallinity
S. High extensibility
Ques 47 GATE 2017
To obtain high molecular weight nylon-66, if 11.6 g of hexamethylene diamine (molecular weight 116 g/mol) is used, then the required amount of adipic acid (molecular weight 146 g/mol), in gram, accurate to one decimal place, is
Ques 48 GATE 2017
If the distance between two adjacent fibres of circular cross-section in a hexagonally packed yarn is equal to the radius of the fibre, then the packing density of yarn, accurate to three decimal places, is
Ques 49 GATE 2017
A T-shirt is produced from cotton fiber of 1520 kg/m³ density, 1.4 dtex fineness, and 30 mm length. How many total fibers are in a 0.15 kg T-shirt (expressed as a number × 10⁶)?
Ques 50 GATE 2017
Pilling resistance of
Ques 51 GATE 2017
At 65% relative humidity and 20°C temperature, the moisture regain of the fibres
(P) Wool
(Q) Nylon 6
(R) Cotton
(S) Polyester
follows the order
Ques 52 GATE 2017
The cut squaring technique of sampling of fibres is NOT applicable to
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