Fabric Testing - Textile Testing - Textile Engineering & Fibre Science Previous Year Questions

1

2007 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2007

Bursting strength is normally expressed in

A

N

B

N.m

C

N. m⁻²

D

Pa

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2

2007 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2007

Percentage porosity of the plug would be approximately

A

25

B

50

C

75

D

100

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3

2008 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2008

In the context of flat fabric abrasion resistance, choose the correct statement.

A

Abrasion resistance of fabric increases with increase in yarn twist continuously

B

There is no optimum fabric set for best abrasion resistance

C

The pressure between abradant and sample can alter the ranking of a set of fabric for a particular abradant

D

Yarns made from long and short fibres do not make any difference in abrasion resistance of the corresponding fabrics

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4

2008 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2008

Pilling propensity on fabric surface increases with

A

Increase in length of fibre used in yarn

B

Increase in yarn twist

C

Decrease in inter fibre friction

D

Decrease in fibre strength

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5

2009 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2009

Consider the instruments of Kawabata Evaluation System in Group I and the properties measured in Group II and choose the correct alternatives from amongst A, B, C and D.

Group I	Group II
P. KES-FB1	1. Compression
Q. KES-FB2	2. Abrasion
R. KES-FB3	3. Hygral expansion
S. KES-FB4	4. Bending
	5. Surface friction
	6. Shear

A

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

B

P-3, Q-1, R-4, S-5

C

P-6, Q-2, R-4, S-3

D

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

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6

2010 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2010

The shear characteristics of fabric are measured by

A

KES-FB3

B

FAST 3

C

KES-FB2

D

FAST 2

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7

2010 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 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

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8

2011 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2011

Given below are the load-elongation characteristics of two monofilament yarns A and B having the same denier and the work of rupture. Consider the following assertion [a] and reason [r].
[a] Fabrics made from these two yarns, with the same weave and sett, will have the same resistance to high impact.
[r] The work of rupture of the two fabrics is the same.

A

[a] is right and [r] is wrong

B

[a] is wrong and [r] is right

C

Both [a] and [r] are right

D

Both [a] and [r] are wrong

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9

2013 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2013

The relationship between load (y) in N and elongation (x) in mm of a cotton fabric is \(y = \sqrt{x}\). If the breaking elongation of the fabric is 9 mm, the work of rupture, in N.mm, is ________.

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10

2013 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2013

The strength of 100 g/m² fabric obtained by testing 4 cm wide strip is 0.4 kN. The tenacity (cN/tex) of the fabric is ________.

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11

2013 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2013

The abrasion cycles on a flat abrasion tester increase with an increase in

A

Pressure applied during abrasion

B

Speed of abrasion

C

Area of abraded surface

D

Specimen tension during abrasion

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12

2014 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2014

In the Limiting Oxygen Index (LOI) test, the sample is kept in

A

Horizontal position and burnt from the left side

B

Inclined position and burnt from the bottom

C

Vertical position and burnt from the top

D

Vertical position and burnt from the bottom

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13

2016 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2016

A fabric specimen of original length 75 mm is stretched to a length of 120 mm and after removal of the load the length reduces to 95 mm. The elastic recovery (%) of the fabric specimen is __________

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14

2016 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2016

A sector-shaped, falling-pendulum type apparatus is suitable for measurement of

A

Elmendorf tear strength

B

Tongue tear strength

C

Trapezoidal tear strength

D

All of them

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15

2016 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2016

The flexural rigidity, expressed in 10⁻⁴ mg cm, of a fabric test specimen of 100 g/m² areal density and 0.40 mm length of overhang determined using a cantilever test with a standard angle of deflection of 41.5°, is __________

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16

2017 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2017

Shrinkage of cotton fabric during wetting is caused by

A

Extension of fibre

B

Crimping of fibre

C

Swelling of fibre

D

Compression of fibre

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17

2017 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2017

The coefficient of correlation between packing density and porosity of a set of yarns is __________

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18

2018 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2018

The constant-rate-of-extension type tensile tester is NOT used for

A

Tongue tear test

B

Wing rip tear test

C

Elmendorf tear test

D

Trapezoid tear test

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19

2018 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2018

Match the test in Group I with fabric property in Group II.

Group I
P. Cup test
Q. Heart loop test
R. Spray rating test
S. Hydrostatic head test

Group II
1. Flexural rigidity
2. Water vapour permeability
3. Resistance to water penetration
4. Resistance to surface wettability

A

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

B

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

C

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

D

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

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20

2020 · Textile Engineering & Fibre Science · Textile Testing · Fabric Testing

Textile Engineering & Fibre Science (TF) 2020

A fabric with mass per unit area of 250 g/m² has flexural rigidity of 275 μN·m. The bending length (mm) of the fabric (rounded off to 2 decimal places) is __________.

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