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Textile Engineering Gate 2025 Questions with Answer

Ques 14 GATE 2025

In a projectile weaving machine, the projectile travels through the shed at an average speed of 24 m/s taking 2/3rd of the loom cycle. If the efficiency of the weaving machine is 90%, the weft insertion rate (m/min) is (answer in integer)


(864) is the correct answer.

Ques 15 GATE 2025

Profile reed is used in

A

Projectile loom

B

Rapier loom

C

Shuttle loom

D

Air-jet loom


(d) is the correct answer.

Ques 16 GATE 2025

Amongst the following, the component which is NOT a part of single-bed warp knitting machine, is

A

Guide bar

B

Needle bar

C

Sinker

D

Heald shaft


(d) is the correct answer.

Ques 17 GATE 2025

Amongst the following, the correct reason(s) for high pilling tendency in a woven fabric is/are

A

high twist level in the yarn

B

low twist level in the yarn

C

finer and stronger fibres in the yarn

D

weak and brittle fibres in the yarn


(b) is the correct answer.

Ques 18 GATE 2025

High drape coefficient of fabric indicates

A

soft fabric

B

flexible fabric

C

stiff fabric

D

low strength fabric


(c) is the correct answer.

Ques 19 GATE 2025

In the first heating cycle of a differential scanning calorimetry (DSC) experiment, an as-spun Nylon 6 fibre showed an enthalpy change of 40 J/g during cold crystallization and an enthalpy change of 150 J/g during melting. If the heat of fusion of 100% crystalline Nylon 6 is 240 J/g, the percentage degree of crystallinity of as-spun Nylon 6 fibre (rounded off to 1 decimal place) is


(45.8) is the correct answer.

Ques 20 GATE 2025

Determine the correctness or otherwise of the following Assertion [p] and Reason [r].
[p]: The melting temperature of polyester (PET) fibres is higher than that of Nylon 6 fibres
[r]: The hydrogen bonding in PET is stronger than that in Nylon 6

A

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

B

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

C

Both [p] and [r] are false

D

[p] is true but [r] is false


(b) is the correct answer.

Ques 21 GATE 2025

Determine the correctness or otherwise of the following Assertion [p] and Reason [r].
[p]: The tenacity of a polymeric fibre depends on the strain rate
[r]: Under mechanical deformation polymeric fibre exhibits both elastic as well as viscous response

A

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

B

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

C

Both [p] and [r] are false

D

[p] is true but [r] is false


(a) is the correct answer.

Ques 22 GATE 2025

If melting, pyrolysis and combustion temperatures of polyester fibre are denoted by Tm, Tp and Tc respectively, then the correct order of temperatures is

A

Tm<Tc<Tp

B

Tm<Tp<Tc

C

Tp<Tc<Tm

D

Tp<Tm<Tc


(b) is the correct answer.

Ques 23 GATE 2025

Amongst the following, the correct statement(s) for regenerated cellulosic fibres is/are

A

Degree of polymerization of Lyocell is higher than that of viscose

B

Degree of crystallinity of Lyocell is lower than that of viscose

C

Spinning dope of Lyocell is an aqueous solution

D

Wet strength of Lyocell is lower than that of viscose


(a) is the correct answer.

Ques 24 GATE 2025

A circular hollow polyester fibre with a tenacity of 0.02 N/tex breaks at 0.2 N. If the density of polyester is 1.38 g/cm3 and the inner diameter of the fibre is 40μm, the outer diameter (μm) of the fibre (rounded off to 1 decimal place) is


(50.3) is the correct answer.

Ques 25 GATE 2025

A spun yarn made of circular polyester fibres of 10μm diameter is cut normal to the yarn axis. If the helix angle of a fibre is 40° then the area (μm2) of that fibre projected on the cut-section of the yarn (rounded off to 1 decimal place) is


(60.3) is the correct answer.

Ques 26 GATE 2025

The fibre which does NOT contain 1,4-glycosidic bonds is

A

Polynosic

B

Ramie

C

Flax

D

Rayon


(a) is the correct answer.

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