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Textile Engineering Gate 2009 Questions with Answer

Ques 14 GATE 2009

In fully relaxed state the loop shape factor (defined as a ratio of courses per unit length to wales per unit length) of a plain weft knitted cotton fabric will be approximately

A

0.3

B

0.8

C

1.3

D

1.8


(c) is the correct answer.

Ques 15 GATE 2009

The tear resistance of woven fabric increases with
(P) Increase in yarn to yarn friction
(Q) Increase in yarn strength
(R) Increase in thread spacing
(S) Increase in float length
Choose the correct combinations from amongst the alternatives A, B, C and D.

A

P, Q, R

B

Q, R, S

C

P, R, S

D

P, Q, S


(d) is the correct answer.

Ques 16 GATE 2009

Assume Peirce's Geometry and circular yarn of 0.5 mm diameter. A square plain woven fabric with maximum sett would have thread spacing (mm) in the fabric as

A

0.433

B

0.500

C

0.866

D

1.000


(c) is the correct answer.

Ques 17 GATE 2009

Assume Peirce's Geometry and circular yarn of 0.5 mm diameter. A square plain woven fabric with maximum sett would have ,Approximate crimp (%) in warp and weft yarns as

A

6

B

11

C

16

D

21


(c) is the correct answer.

Ques 18 GATE 2009

Size is primarily applied on warp yarns to

A

Increase yarn uniformity

B

Increase yarn elongation

C

Increase yarn modulus

D

Provide protective coating against abrasion


(d) is the correct answer.

Ques 19 GATE 2009

Desizing of a grey cotton fabric having starch based size can not be done using

A

Amylase enzyme

B

dilute HCl

C

Hydrogen peroxide

D

DMDHEU


(d) is the correct answer.

Ques 20 GATE 2009

A wool/acrylic blended fabric can be dyed to solid shade using a combination of

A

Direct and acid dyes

B

Vat and acid dyes

C

Acid and basic dyes

D

Reactive and direct dyes


(c) is the correct answer.

Ques 21 GATE 2009

The following dye will be suitable for sublimation transfer printing of polyester

A

Reactive dye

B

Vat dye

C

Acid dye

D

Disperse dye


(d) is the correct answer.

Ques 22 GATE 2009

Consider the elements in Group I and Group II and choose the correct alternative from amongst A, B, C and D.

Group I Group II
P. Resin finishing 3. DMDHEU
Q. Carrier 1. Polyester dyeing
R. Biopolishing 2. Cellulase
S. Discharge printing 6. Sodium sulphoxylate formaldehyde

A

P-3, Q-1, R-2, S-6

B

P-6, Q-1, R-4, S-3

C

P-3, Q-6, R-1, S-5

D

P-3, Q-6, R-4, S-1


(a) is the correct answer.

Ques 23 GATE 2009

Consider the following statements:
P. Presence of iron and copper ions during bleaching with sodium chlorite is desirable.
Q. Sodium silicate is used as a stabilizer in bleaching of cotton with hydrogen peroxide.
R. Oil repellent finishes are based on fluorochemicals.
S. Sodium hydrosulphite is used as a reducing agent in vat printing.
Choose the correct set of statements from amongst the alternatives A, B, C and D.

A

P, S

B

Q, S

C

P, R

D

Q, R


(d) is the correct answer.

Ques 24 GATE 2009

Saponification with sodium hydroxide is done to increase the soil release property of

A

Polyester

B

Cotton

C

Wool

D

Jute


(a) is the correct answer.

Ques 25 GATE 2009

The highest rate of production in printing is obtained on

A

Flat bed printing

B

Block printing

C

Digital printing

D

Rotary screen printing


(d) is the correct answer.

Ques 26 GATE 2009

The optimum conditions for bleaching cotton with hydrogen peroxide are

A

pH 7, 60°C

B

pH 7, boil

C

pH 10, 60°C

D

pH 10, boil


(d) is the correct answer.

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