Gate Yearwise 

Textile Engineering Gate 2014 Questions with Answer

Ques 27 GATE 2014

10% of the population in a town is HIV⁺. A new diagnostic kit for HIV detection is available; this kit correctly identifies HIV⁺ individuals 95% of the time, and HIV individuals 89% of the time. A particular patient is tested using this kit and is found to be positive. The probability that the individual is actually positive is


(0.48 to 0.49) is the correct answer.

Ques 28 GATE 2014

In a sizing process, if add-on is 12.8% and paste concentration is 16%, the value of wet pick-up (%) would be

A

10

B

50

C

80

D

200


(c) is the correct answer.

Ques 29 GATE 2014

Sodium chlorite bleaching of cotton is carried out in the temperature range of

A

95-110°C

B

$80-85°C

C

$50-60°C

D

$30-40°C


(b) is the correct answer.

Ques 30 GATE 2014

K/S ratio is related to reflectance (R) as

A

K/S=(1-R2)/2R

B

K/S=(1+R2)/2R

C

K/S=(1-R)/2R

D

K/S=(1-R)2/2R


(d) is the correct answer.

Ques 31 GATE 2014

A print paste CANNOT be prepared without

A

Colourant

B

Thickener

C

Dispersing agent

D

Carrier


(b) is the correct answer.

Ques 32 GATE 2014

A fabric was dyed in acidic medium. If the dye could be stripped out in strong aqueous alkaline solution at room temperature, the dye-fibre combination is

A

Direct dye - Cotton

B

Acid dye - Wool

C

Vat dye - Cotton

D

Disperse dye - Polyester


(b) is the correct answer.

Ques 33 GATE 2014

The Barium Activity Number (BAN) was determined using the standard procedure. For this, 30 ml of 0.25N Ba(OH)₂ solution was used, in each of the three titrations, i.e. (a) blank titration, (b) back titration where mercerized fabric sample was immersed and (c) back titration where unmercerized fabric sample was immersed in Ba(OH)₂ solution. If the volume (ml) of 0.1N HCI consumed was 10, 1 and 4.5 respectively, the BAN of the mercerized sample, accurate to one decimal place, is


(163 to 164) is the correct answer.

Ques 34 GATE 2014

Scoured and bleached cotton fabric was dyed with reactive dye under the following conditions:
Temperature of dyeing: 40°C
Shade: 3%
Fixation efficiency: 65%
If the rate of hydrolysis of dye is known to be 5% more for every 10°C rise in dyeing temperature, the amount of dye fixed on cotton (g of dye/kg of fibre), if dyed at 50°C accurate to one decimal place, would be


(18.4 to 18.6) is the correct answer.

Ques 35 GATE 2014

Consider the following assertion [a] and reason [r] and choose the most appropriate answer.
[a] In a roller printing machine, the doctor blade is closely set over the printing roller
[r] This is to remove the lint collected on the roller

A

[a] is right, [r] is wrong

B

[a] is right, [r] is right

C

[a] is wrong, [r] is wrong

D

[a] is wrong, [r] is right


(a) is the correct answer.

Ques 36 GATE 2014

A cotton fabric is finished with DMDHEU. As a result, its

A

Tensile strength decreases, abrasion resistance increases, stiffness decreases

B

Tensile strength decreases, abrasion resistance decreases, stiffness decreases

C

Tensile strength decreases, abrasion resistance decreases, stiffness increases

D

Tensile strength increases, abrasion resistance increases, stiffness decreases


(c) is the correct answer.

Ques 37 GATE 2014

During burning, a flame retardant does NOT

A

Increase heat absorption

B

Reduce supply of oxygen

C

Increase char content

D

Lower glass transition temperature (Tg)


(d) is the correct answer.

Ques 38 GATE 2014

Medulla is associated with

A

Cotton

B

Silk

C

Wool

D

Nylon


(c) is the correct answer.

Ques 39 GATE 2014

A good fibre forming polymer should NOT have

A

Linear polymeric chain

B

Branched polymeric chain

C

High DP

D

High inter-molecular interaction


(b) is the correct answer.

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