GATE Textile and Fibre Science Solved papers

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Here I am giving you question paper for GATE Textile and Fibre Science examination in a PDF file attached with it so you can get it easily

Q.1 The fibre which has a mineral origin is
(A) Asbestos (B) Silk (C) Flax (D) Acrylic

Q.2 The chemical that is used to convert soda cellulose to sodium cellulose xanthate in the manufacture
of viscose rayon is
(A) Carbon disulphide (B) Sodium xanthate
(C) Sodium sulphide (D) Sodium hydroxide
Q.3 The fibre that will float on water is
(A) Nylon (B) Polyester (C) Acrylic (D) Polypropylene

Q.4 The range of spinning speed (m/min) used in the manufacture of partially oriented polyester yarn is
(A) 1000 − 1200 (B) 2000 − 2500
(C) 2800 − 3500 (D) 4000 − 6000
Q.5 Drawing of synthetic filament does not lead to an increase in
(A) Crystallinity (B) Tenacity
(C) Tensile modulus (D) Elongation at break
Q.6 In a card, the wire point density is maximum on
(A) Cylinder (B) Flat (C) Doffer (D) Licker-in

Q.7 The spinning system that does not generate false twist during spinning is
(A) Ring spinning (B) DREF 3 (C) Rotor spinning (D) Air jet spinning
Q.8 Most of the seed coat particles are removed in
(A) Blow room (B) Card (C) Comber (D) Draw frame

Q.9 An eccentric top roller in a drafting system leads to
(A) Change in draft with oscillation of nip line
(B) Change in draft without oscillation of nip line
(C) Neither change in draft nor oscillation of nip line
(D) Oscillation of nip line only

Q.10 The increase in traveller weight leads to an increase in
(A) Yarn twist
(B) Traveller lag
(C) Balloon diameter
(D) Yarn tension

Q.11 Dog knot is preferred to weaver's knot during creeling because it is
(A) Easier to make
(B) Stronger
(C) Smaller in size
(D) Less prone to slippage

Q.12 Size add-on does not depend on
(A) Roller hardness
(B) Drying cylinder temperature
(C) Size paste concentration
(D) Machine speed
Q.13 Ball warping is mainly used in the manufacture of
(A) Terry towel
(B) Narrow fabric
(C) Denim
(D) 3D fabric
Q.14 The factor that does not influence the propelling force for moving the weft yarn on air jet loom is
(A) Coefficient of friction between air and yarn
(B) Air velocity
(C) Yarn strength
(D) Yarn diameter
Q.15 In the context of thermal bonding of nonwoven web, the statement which is not true is
(A) A thermoplastic component has to be present in the web
(B) Heat is applied until the thermoplastic component melts
(C) The polymer flows by surface tension and capillary action to fibre cross over points
(D) Chemical reaction takes place
Q.16 A 51 mm long fibre has 6 % crimp. The crimped length of the fibre in mm is approximately
(A) 44 (B) 46 (C) 48 (D) 50
Q.17 On a mass based evenness tester, thin place in a yarn at −40 % setting is counted if mass per unit
length is
(A) 40 % of the mean mass per unit length
(B) 60 % of the mean mass per unit length
(C) 40 % of the mean mass per unit length or less
(D) 60 % of the mean mass per unit length or less
Q.18 Ratio of grab strength to strip strength is the highest when fabric extension (%) is
(A) 0 (B) 5 (C) 10 (D) 15
Q.19 Bursting strength of a woven fabric with the same warp and weft yarns is the highest when the ratio
of ends/cm and picks/cm is
(A) 1.1 (B) 1.0 (C) 0.9 (D) 0.8
Q.20 Fabric abrasion resistance cannot be assessed by the loss in
(A) Strength (B) Thickness (C) Weight (D) Air permeability
Q.21 Bleached cotton fabric was sent to a laboratory for determination of Copper Number, which is an
estimate of the presence of
(A) Hydroxyl groups (B) Carboxyl groups
(C) Reducing groups (D) Oxidizing groups

Q.22 Malachite Green is an important dyestuff. The typical green colour is obtained when the dye
molecule is
(A) Nonionic
(B) Cationic
(C) Anionic
(D) Made up of phenyl groups
Q.23 A typical curve between equilibrium dye uptake and dyeing temperature goes through a maximum.
After the maximum, the dye uptake decreases because
(A) Kinetic energy increases rapidly
(B) Pressure in the dye bath increases
(C) Saturation value is reached
(D) Dyeing is an exothermic process
Q.24 The efficacy of the wash-n-wear treatment can be estimated by measuring its
(A) Bending length
(B) Tensile strength
(C) Dye uptake
(D) Crease recovery
Q.25 Softener reduces the bending rigidity of fabrics by decreasing
(A) Inter-fibre and inter-yarn friction
(B) Modulus of the fibres
(C) Glass transition temperature of the fibres
(D) Packing coefficient of yarns
Q. 26 to Q. 55 carry two marks each.
Questions Q.26 to Q.30 are numerical answer type. The answer to each of these questions is
either a positive whole number, or a positive real number with maximum of 2 decimal places.
Q.26 The density of a given polyester filament sample is 1.38 g/cm3. Consider the density of fully
crystalline polyester as 1.455 g/cm3 and that of fully amorphous polyester as 1.335 g/cm3. The
percent crystallinity of the sample is ________.
Q.27 Cleaning efficiency of the opening roller in a rotor spinning machine, having 56 mm diameter rotor,
is 80 %. The yarn breaks when the trash deposition within the rotor groove crosses the threshold of
1 mg/mm. If a sliver with 0.4 % trash is fed at 7.5 g/min, the number of end breaks in 1 hr (to the
nearest whole number) is ________.
Q.28 In a projectile weaving machine the projectile travels a total distance of 250 cm at an average
velocity of 25 m/s. If the time period during which it is in motion occupies half of the loom cycle,
the maximum loom speed in picks per minute is ________.
Q.29 A 225 denier viscose yarn has a breaking strength of 7.5 N. The yarn tenacity in cN/dtex is
________.

I want to appear in GATE Textile Engineering And Fiber Science entrance exam. Will you please provide the GATE Textile Engineering And Fiber Science exam question paper for an idea ?

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Time Allowed: 3 hrs

Maximum Marks :100 marks

Number Of Questions –60

GATE Textile Engineering And Fiber Science entrance exam question paper





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