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Textile Engineering Gate 2026 Questions with Answer

Ques 40 GATE 2026

Amongst the following factors, the one which decreases the glass transition temperature (Tg) of a polymer is _________.

A

presence of bulky side groups

B

aromatic groups in polymer backbone

C

aliphatic linear polymer backbone

D

presence of polar groups


(c) is the correct answer.

Ques 41 GATE 2026

Which one of the following is the correct combination of monomers used for the synthesis of nylon 66 polymer?

A

NH2-(CH2)2-NH2 and HOOC-(CH2)4-COOH

B

NH2-(CH2)6-NH2 and HOOC-(CH2)6-COOH

C

NH2-(CH2)6-NH2 and HOOC-(CH2)4-COOH

D

NH2-(CH2)6-NH2 and HOOC-(CH2)2-COOH


(c) is the correct answer.

Ques 42 GATE 2026

Yarn diameter (D) is related to yarn linear density (T) as per the following equation.
D = K√T
where K is a coefficient which depends on fibre density (ρ) and yarn packing density (μ). The value of K increases with ___________.

A

increase in ρ and increase in μ

B

increase in ρ and decrease in μ

C

decrease in ρ and increase in μ

D

decrease in ρ and decrease in μ


(d) is the correct answer.

Ques 43 GATE 2026

Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
Assertion: The yarn from a cop can be unwound smoothly at high speeds.
Reason: The cross windings on the cop prevent sloughing off.

A

Both [a] and [r] are true and [r] is the correct reason for [a]

B

Both [a] and [r] are true but [r] is not the correct reason for [a]

C

Both [a] and [r] are false

D

[a] is true but [r] is false


(a) is the correct answer.

Ques 44 GATE 2026

The following figure shows the position of a needle at its lowest position during needlepunching operation. If P, Q and R are barbs on the needle, then which is the correct order of barbs in terms of workload?

A

Q > P > R

B

P > R > Q

C

P > Q > R

D

R > P > Q


(b) is the correct answer.

Ques 45 GATE 2026

During air-jet weft insertion, a pick is uniformly accelerated till the middle of reed width and then its velocity remains constant. If the reed width is 2 m and the uniform acceleration of the pick is 18 m/s2, then the average pick velocity in the entire duration of weft insertion is _________ m/s.

A

3

B

4

C

6

D

8


(b) is the correct answer.

Ques 46 GATE 2026

Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
Assertion: Reactive dyes containing dichlorotriazine (DCT) group are considered homo-bifunctional reactive dyes.
Reason: Both the chlorine atoms of DCT group react simultaneously with cotton at the room temperature.

A

Both [a] and [r] are true and [r] is the correct reason for [a]

B

Both [a] and [r] are true but [r] is not the correct reason for [a]

C

Both [a] and [r] are false

D

[a] is true but [r] is false


(d) is the correct answer.

Ques 47 GATE 2026

Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
Assertion: 1,2,3,4-butanetetracarboxylic acid (BTCA) along with sodium hypophosphite is used for anti-crease finishing of cotton fabric.
Reason: Sodium hypophosphite as a catalyst facilitates fast reaction of BTCA with cotton at the room temperature.

A

Both [a] and [r] are true and [r] is the correct reason for [a]

B

Both [a] and [r] are true but [r] is not the correct reason for [a]

C

Both [a] and [r] are false

D

[a] is true but [r] is false


(d) is the correct answer.

Ques 48 GATE 2026

Which of the following features is/are related to a wool fibre?

A

Cuticle

B

Amide linkages

C

Cortex

D

Ester linkages


(a,b,c) is the correct answer.

Ques 49 GATE 2026

As per the noil theory of Gégauff, which one or more of the following options will reduce the noil percent in combing process?

A

Wider detachment setting in forward feed

B

Narrower detachment setting in backward feed

C

Higher feed length per combing cycle in forward feed

D

Lower feed length per combing cycle in backward feed


(a,d) is the correct answer.

Ques 50 GATE 2026

Which is/are the characteristic(s) of multiphase weaving?

A

Limited choice of weaves

B

Low beat-up force

C

Low productivity

D

High weft tension


(a,b) is the correct answer.

Ques 51 GATE 2026

With reference to the guarded hotplate method for measuring the thermal transmission characteristics of fabrics, which of the following statements is/are correct?

A

The temperatures of test plate, guard ring and bottom plate are kept same

B

The temperatures of test plate, guard ring and bottom plate are kept different

C

The heat flow only from the test plate is taken into consideration

D

The heat flow only from the guard ring is taken into consideration


(a,c) is the correct answer.

Ques 52 GATE 2026

In the context of spectrogram, which of the following statements is/are correct?

A

It helps in identifying imperfections in yarns

B

It helps in identifying periodic variations in yarns

C

It helps in identifying random variations in yarns

D

It helps in locating faulty machine parts in a staple yarn manufacturing line


(b,d) is the correct answer.

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