Gate Yearwise 

Textile Engineering Gate 2010 Questions with Answer

Ques 27 GATE 2010

Which of the following yarns is the finest?

A

10s Ne

B

10 tex

C

100s Ne

D

100 tex


(c) is the correct answer.

Ques 28 GATE 2010

Mature cotton fibres have average degree of cell wall thickening (θ) of about

A

0.1

B

0.2

C

0.6

D

1.0


(c) is the correct answer.

Ques 29 GATE 2010

Match the elements of Group I and Group II.

Group I Group II
P. Polypropylene 6. Excellent chemical resistance
Q. Cotton 5. Higher wet strength
R. Polyester 2. Excellent thermal resistance
S. Wool 1. Poor hydrolytic stability

A

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

B

P-2, Q-5, R-6, S-3

C

P-4, Q-5, R-1, S-2

D

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


(b) is the correct answer.

Ques 30 GATE 2010

In the context of viscose fibre production, choose the correct statement.

A

Ageing is an oxidative polymerization step

B

The coagulation bath requires acid for regeneration of cellulose

C

Ripening is carried out just before xanthation process

D

Xanthation is necessary for converting cellulose to alkali cellulose


(b) is the correct answer.

Ques 31 GATE 2010

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].
Assertion: The spinning speeds in melt spinning process are higher than that of wet spinning process.
Reason: The solidification of melt involves only heat transfer, whereas in wet spinning one way mass transfer is also involved.

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 32 GATE 2010

30 bales of 3.5 Mi and 40 bales of 4.0 Mi cotton fibres (Mi is Micronaire value of cotton fibres) are already available in the raw material inventory of the mill. What is the approximate Mi value required of another 30 bales so that the resultant mean Mi of the total 100 bales will be 4.0?

A

3.4

B

4.7

C

5.2

D

6.0


(b) is the correct answer.

Ques 33 GATE 2010

The effective length of cotton with 21 mm lower quartile length and 25% dispersion percentage is

A

15.7 mm

B

21.0 mm

C

26.2 mm

D

28.0 mm


(c) is the correct answer.

Ques 34 GATE 2010

100 kg of 67/33 polyester/cotton blended yarn with 4% moisture content is shipped. The standard moisture regain values of polyester and cotton are 0.4% and 8.5% respectively. The correct invoice weight is approximately

A

92 kg

B

96 kg

C

99 kg

D

104 kg


(d) is the correct answer.

Ques 35 GATE 2010

The following has the highest Index of Irregularity

A

Carded sliver

B

Yarn

C

Roving

D

Drawn sliver


(a) is the correct answer.

Ques 36 GATE 2010

The thinnest Classimat fault among the following is

A

D4

B

E

C

F

D

I2


(d) is the correct answer.

Ques 37 GATE 2010

The shear characteristics of fabric are measured by

A

KES-FB3

B

FAST 3

C

KES-FB2

D

FAST 2


(c) is the correct answer.

Ques 38 GATE 2010

The bending length of a fabric is 5 cm. The length of overhanging strip of the fabric specimen when the tip of it, viewed in the mirror, cuts both the index lines of fabric bending length tester is

A

2.5 cm

B

5 cm

C

7.5 cm

D

10 cm


(b) is the correct answer.

Ques 39 GATE 2010

In which of the following regions of a carding machine, the fibre alignment is disturbed to the maximum extent?

A

Cylinder to doffer transfer region

B

Licker-in to cylinder transfer region

C

Cylinder to cylinder under-casing region

D

Cylinder to flats carding region


(b) is the correct answer.

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