gate.iitm.ac.in Textile & Fiber Science GATE Exam Question Paper Model : Indian Institute of Technology Madras
Name of the Organisation : Indian Institute of Technology Madras
name of the Exam : GATE
Document Type : Model Question Paper
Name of the Subject : Textile Engineering And Fiber Science
Website : gate.iitm.ac.in
Download Sample Question Paper : https://www.pdfquestion.in/uploads/7699-gate.pdf
GATE Textile Engineering And Fiber Science Sample Questions :
Read the following instructions carefully.
1. The computer allotted to you at the examination center runs a specialized software that permits only one answer to be selected for multiple choice questions using a mouse. Your answers shall be updated and saved on a server periodically and at the end of the examination.
Related : IITR GATE Exam Textile Engineering & Fibre Science Question Paper 2016 : www.pdfquestion.in/8694.html
2. To login, enter your Registration Number and password provided in the envelope. Go through the symbols used in the test and understand the meaning before you start the examination. You can view all questions by clicking on the View All Questions button in the screen after the start of the examination.
3. To answer a question, select the question using the selection panel on the screen and choose the correct answer by clicking on the radio button next to the answer. To change the answer, just click on another option. If you wish to leave a previously answered question unanswered, click on the button next to the selected option.
4. The examination will automatically stop at the end of 3 hours
Section I : Q. 1 – Q. 25 carry one mark each.
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