Gate Yearwise 

Textile Engineering Gate 2010 Questions with Answer

Ques 14 GATE 2010

In bleaching with H2O2, the active oxidizing species is

A

Water

B

Perhydroxyl ion

C

Hydrogen

D

Hydroxyl ion


(b) is the correct answer.

Ques 15 GATE 2010

A textile dye should have in its structure at least

A

One azo and one reactive group

B

Two chromophores

C

One chromophore and one auxochrome

D

One solubilising and one reactive group


(c) is the correct answer.

Ques 16 GATE 2010

Compounds based on combination of nitrogen and phosphorus are used as

A

Water proofing agents

B

Antimicrobial agents

C

Flame retardants

D

Antistatic agents


(c) is the correct answer.

Ques 17 GATE 2010

Jet dyeing machines are built to be used with material to liquor ratio of

A

1:1

B

1:50

C

1:30

D

1:8


(d) is the correct answer.

Ques 18 GATE 2010

Match the elements of Group I and Group II.

Group I Group II
P. Acid dye 3. Electrovalent bonds
Q. Mordant dye 4. Co-ordinate bonds
R. Reactive dye 2. Covalent bonds
S. Direct dye 5. Van der Waals forces

A

P-3, Q-2, R-1, S-5

B

P-3, Q-4, R-2, S-5

C

P-5, Q-4, R-2, S-6

D

P-5, Q-2, R-1, S-6


(b) is the correct answer.

Ques 19 GATE 2010

Match the elements of Group I and Group II.

Group I Group II
P. Thickener for printing with reactive dye 2. Sodium alginate
Q. Fixation of pigment on cotton 1. Saturated steam
R. Swelling agent in nylon printing 3. Thiourea
S. Thickener for pigment printing 6. Oil in water emulsion

A

P-2, Q-3, R-1, S-4

B

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

C

P-5, Q-1, R-6, S-4

D

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


(c) is the correct answer.

Ques 20 GATE 2010

In a sizing machine, 100 m length of warp sheet was processed. The warp was stretched by 3%, 2% and 1% at unwinding zone, wet zone and drying zone respectively. The length of warp sheet on weaver's beam will be

A

106.00 m

B

106.11 m

C

103.11 m

D

100.06 m


(b) is the correct answer.

Ques 21 GATE 2010

Match the elements of Group I and Group II.

Group I: Technology Group II: Product
P. Rope dyeing 4. Denim
Q. Electronic jacquard 3. Furnishing fabric
R. Warp knitting 1. Spacer fabric
S. Nonwoven 6. Tea bag

A

P-3, Q-2, R-1, S-5

B

P-4, Q-1, R-5, S-6

C

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

D

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


(d) is the correct answer.

Ques 22 GATE 2010

Determine the correctness or otherwise of the following Assertion (a) and the Reason [r].
Assertion: In effluent treatment, flocculation is used to precipitate out the organic impurities.
Reason: Flocculation involves use of moderately charged polyelectrolytes.

A

Both [a] and [r] are false

B

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

C

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

D

[a] is false but [r] is true


(d) is the correct answer.

Ques 23 GATE 2010

Amongst the following, the only naturally extruded fibre is

A

Wool

B

Cotton

C

Hemp

D

Silk


(d) is the correct answer.

Ques 24 GATE 2010

The acrylonitrile content in the modacrylic fibre forming polymer is

A

85-95%

B

40-80%

C

10-30%

D

25-85%


(b) is the correct answer.

Ques 25 GATE 2010

For poly(ethylene terephthalate), which of the following will have the highest crystallinity?

A

Amorphous chips

B

LOY

C

POY

D

FDY


(b) is the correct answer.

Ques 26 GATE 2010

A 5 cm long filament is drawn to 20 cm. The draw ratio is

A

2

B

3

C

4

D

5


(c) is the correct answer.

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