Textile Engineering Gate 2019 Questions with Answer
Ques 27 GATE 2019
X is an online media provider. By offering unlimited and exclusive online content at attractive prices for a loyalty membership, X is almost forcing its customers towards its loyalty membership. If its loyalty membership continues to grow at its current rate, within the next eight years more households will be watching X than cable television. Which one of the following statements can be inferred from the above paragraph?
Ques 28 GATE 2019
Barium Activity Number (BAN) of a cotton fabric was found to be 150. The fabric must have undergone
Ques 29 GATE 2019
A wool fabric is to be dyed with an acid dye to a shade of 4% on the weight of fabric (owf). The material to liquor ratio is 1:40 and the exhaustion is 100%. The concentration (gpl) of the dye in the initial dye bath is __________.
Ques 30 GATE 2019
A cellulosic fabric has been treated with boric acid to impart flame retardancy. The wet expression is 100%. The molecular weight of boric acid is 62 and the atomic mass of boron is 11. Assume that no chemical reaction takes place between boric acid and the fibre. If 2.2 % boron has been added on the weight of fabric (owf), then the add-on of boric acid on fabric (% owf) (rounded off to 1 decimal place) is ________.
Ques 31 GATE 2019
The set containing oxidative bleaching agents only is
P. Sodium hydrosulphite
Q. Thiourea dioxide
R. Sodium hypochlorite
S. Hydrogen peroxide
Ques 32 GATE 2019
Determine the correctness or otherwise of the following Assertion [a] and Reason [r]
[a]: Synthetic thickeners used in pigment printing are neutralized before printing.
[r]: Without neutralization, the viscosity required for printing would not be achieved.
Ques 33 GATE 2019
Determine the correctness or otherwise of the following Assertion [a] and Reason [r]
[a]: The equilibrium dye uptake by a fibre decreases with increasing dyeing temperature.
[r]: Dyeing is an endothermic process.
Ques 34 GATE 2019
A polyester fabric is dyed with a disperse dye till equilibrium is reached. If the concentration of the dye in the spent dyebath is 0.05 gpl and the partition coefficient is 1000 ml/g, then amount of dye in the fibre (g/100 g) is
Ques 35 GATE 2019
A wet polyester fabric has an areal density of 160 g/m². The initial temperature of the wet fabric is 20°C. After it is completely dried on a cylinder dryer, its areal density drops to 100 g/m². Consider the specific heat of polyester as 2.0 J/g°C, the specific heat of water as 4.2 J/g°C, and the latent heat of evaporation of water as 2260 kJ/kg. Assuming that there is no heat loss, what is the energy (in kJ) required to dry 1 m² of the fabric (rounded off to two decimal places)?
Ques 36 GATE 2019
Acrylic fibre is made from at least 85% by weight of
Ques 37 GATE 2019
The pair of natural fibres, belonging to the category of seed fibre, is
Ques 38 GATE 2019
The gum present in the raw mulberry silk fibre is
Ques 39 GATE 2019
A blend of nylon 6 and polyester fibres when dissolved in formic acid at room temperature leaves a bone dry residue of 40% by weight. The weight fraction of polyester in the blend (rounded off to 1 decimal place) is ________.
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