Textile Engineering Gate 2024 Questions with Answer

Ques 27 GATE 2024


Consider the following diagram where an oil droplet is formed on a fabric immersed in water. At equilibrium, the balance of various interfacial forces acting on the droplet is given by the following equation
γFW = γFO + γOWcosθ
When a surfactant is added to water, assuming that γOW and γFO remain unchanged, the following happens _______.

A

γFW decreases and the oil droplet tends to become rounder

B

γFW decreases and the oil droplet tends to become flatter

C

γFW increases and the oil droplet tends to become rounder

D

γFW increases and the oil droplet tends to become flatter


(a) is the correct answer.

Ques 28 GATE 2024


Amongst the given options, the condition(s) which will increase the equilibrium wicking height of water in a yarn is/are _______.

A

Higher contact angle between fibre and water

B

Lower contact angle between fibre and water

C

Higher capillary diameter

D

Lower capillary diameter


(b,d) is the correct answer.

Ques 29 GATE 2024


Consider the following equation C = C₁ + C₂ - C₁C₂ where C stands for fractional cover of a fabric, C₁ denotes the fractional cover of warp and C₂ refers to the fractional cover of weft. Amongst the given options, the fabric structure(s) in which the aforesaid equation is valid is/are _______.

A

Plain woven fabric

B

Double cloth

C

Terry fabric

D

Leno fabric


(a,d) is the correct answer.

Ques 30 GATE 2024


A plain woven fabric with square construction, prepared from yarns of 0.2 mm diameter, has a fractional cover of 0.7. The distance (mm) between the two adjacent ends (rounded off to 2 decimal places) is _______.


(0.29) is the correct answer.

Ques 31 GATE 2024


With reference to Shirley stiffness tester, the relationship between the fabric bending length (C) and the overhanging length (L) at the standard angle of deflection of 41.5o is approximately _______.

A

C = 0.25 L

B

C = 0.5 L

C

C = L

D

C = 2 L


(b) is the correct answer.

Ques 32 GATE 2024


With reference to the KES FB-1 system, the correct statement(s) amongst the following is/are _______.

A

Tensile strain is measured by angle of drum rotation

B

Tensile strain is measured by crosshead movement

C

Tensile force is measured by tensile load cell

D

Tensile force is measured by torque sensor


(a,c) is the correct answer.

Ques 33 GATE 2024


A ballistic type impact tester is shown below. The test specimen is connected to the bob of the pendulum of 10 N weight. The pendulum is released from a height of 1 m from the base, and this results in rupture of test specimen. Considering no frictional losses and neglecting the weight of the connecting rod, if the work of rupture of the specimen is 10 N-m, then the total swing angle (degree) that the pendulum makes during its travel (in integer) is _______.


(180) is the correct answer.

Ques 34 GATE 2024


Amongst the following, the nitrogen containing fibre(s) is/are _______.

A

Nylon 6

B

Acrylic

C

Polyester

D

Viscose


(a,b) is the correct answer.

Ques 35 GATE 2024


With reference to cotton fibre testing systems, the correct statement(s) amongst the following is/are _______.

A

Image processing principle is used to measure nep count in HVI

B

Image processing principle is used to measure trash count in HVI

C

Air flow principle is used to measure fibre fineness in HVI

D

Air flow principle is used to measure fibre fineness in AFIS


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

Ques 36 GATE 2024


A knitted fabric is prepared from a yarn of 15 tex count. The fabric has 16 courses/cm, 17 wales/cm and 2.6 mm loop length. The areal density (g/m²) of the fabric (rounded off to the nearest integer) is _______.


(338) is the correct answer.

Ques 37 GATE 2024


Determine the correctness or otherwise of the following Assertion [a] and Reason [r]:
[a]: Nylon 6 should be thoroughly dried before melt spinning
[r]: The glass transition temperature of Nylon 6 decreases in presence of moisture

A

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

B

Both [a] and [r] are true and [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 38 GATE 2024


Determine the correctness or otherwise of the following Assertion [a] and Reason [r]:
[a]: Cotton does not melt when exposed to flame
[r]: Cotton has a tendency to exhibit melting behaviour

A

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

B

Both [a] and [r] are true and [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 39 GATE 2024


A 200 m long bone-dry Nylon fibre with circular cross-section and density of 1.2 g/cm³, absorbs 0.003 g moisture. If the moisture content of the fibre becomes 4% after moisture absorption, then the diameter (µm) of bone-dry Nylon fibre (rounded off to 1 decimal place) is _______.


(12.6) is the correct answer.

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