# Gujarat PGCET Syllabus for Textile Engineering (TE) 2021

0
519

Gujarat PGCET Textile Engineering syllabus 2021 – Gujarat PGCET stands for Gujarat post graduate common entrance test.  This entrance test Is to be held on a state level entrance examination. This entrance examination is going to be conducted by the admission community of professional course (ACPC). After clearing Gujarat PGCET 2021 entrance exam applicants may be able to sit in the first year of professional postgraduate courses. There are various professional graduate courses included in this entrance examination these are M.Tech/M.E.

## Gujarat PGCET 2021 Textile Engineering Syllabus

In this section, we are going to discuss Gujarat PGCET 2021 Textile Engineering syllabus in detail. But before that, All applicants must be aware of the Gujarat PGCET 2021 exam pattern. Gujarat PGCET exam is the complete offline or pen- paper-based exam. The total duration of the exam is 1 hour 30 minutes (90  minutes). The question to be asked by the question paper is a multiple choice question and there are a total hundred questions to be asked. The question paper will be released in English medium. The marking scheme of the Gujarat PGCET 2021 exam is that every correct answer applicant will be awarded one mark and there will be no negative marking for any wrong answer.

### Gujarat PGCET 2021 Syllabus for Textile Engineering

Topics covered under Textile Engineering Syllabus is given below:

#### Engineering Mathematics

Linear Algebra: Matrix algebra, Systems of linear equations, Eigenvalues and eigenvectors.

Calculus: Functions of a single variable, Limit, continuity and differentiability, Mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.

Differential equations: First order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one-dimensional heat and wave equations and Laplace equation.

Complex variables: Analytic functions, Cauchy’s integral theorem, Taylor and Laurent series.

Probability and Statistics: Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson, Normal and Binomial distributions.

Numerical Methods: Numerical solutions of linear and non-linear algebraic equations Integration by trapezoidal and Simpson’s rule, single and multi-step methods for differential equations.

#### Textile Technology/Engineering Topics

Textile Fibres: Classification of textile fibres; Essential requirements of fibre forming polymers; Gross and fine structure of natural fibres like cotton, wool and silk. Introduction to important best fibres; properties and uses of natural and man-made fibres. Molecular architecture, amorphous and crystalline phases, glass transition, plasticization, crystallisation, melting, factors affecting Tg and Tm. Polymerization of nylon-6, nylon-66, poly (ethylene terephthalate), polyacrylonitrile and polypropylene; Melt Spinning processes, characteristic features of PET, polyamide and polypropylene spinning; wet and dry spinning of viscose and acrylic fibres; post spinning operations such as drawing, heat setting, tow-to-top conversion and different texturing methods. Methods of investigating fibre structure e.g., Density, X-ray diffraction, birefringence, optical and electron microscopy, I.R. absorption, thermal methods (DSC, DMA/TMA, TGA); structure and morphology of man-made fibres, mechanical properties of fibres, moisture sorption in fibres; fibre structure and property correlation.

Yarn manufacture and yarn structure & properties: Principles of opening, cleaning and mixing/blending of fibrous materials, working principle of modern opening and cleaning equipment’s; the technology of carding, carding of cotton and synthetic fibres; Drafting operation, roller and apron drafting principle, causes of mass irregularity introduced by drafting; roller arrangements in drafting systems; principles of cotton combing, combing cycle, mechanism and function, combine efficiency, lap preparation; recent developments in Comber; Roving production, mechanism of bobbin building, roving twist; Principle of ring spinning, forces acting on yarn and traveller; modification in-ring & traveller designs; mechanism of crop formation, causes of end breakages; working principle of ring double and two for one twister, single and folded yarn twist, properties of double yarns, production of core-spun yarn, compact spinning, the principle of non-conventional methods of yarn production such as rotor spinning, air-jet spinning, wrap spinning, twist less spinning and friction spinning. Yarn contraction, yarn diameter, specific volume & packing coefficient; twist strength relationship in spun yarns; fibre configuration and orientation in yarn; cause of fibre migration and its estimation, irregularity index, properties of the ring, rotor and air-jet yarns.

Fabric manufacture and Fabric Structure: Principles of cheese and cone winding processes and machines; random and precision winding; package faults and their remedies; yarn clearers and tensioners; different systems of yarn splicing; features of modern cone winding machines; different types of warping creels; features of the modern beam and sectional warping machines; different sizing systems, sizing of spun and filament yarns, modern sizing machines, different sizing ingredients; principles of pirn winding processes and machines; primary and secondary motions of a loom, the effect of their settings and timings on fabric formation, fabric appearance and weaving performance; dobby and jacquard shedding; mechanics of weft insertion with shuttle; warp and weft stop motions, warp protection, weft replenishment; functional principles of weft insertion systems of shuttleless weaving machines, principles of multiphase and circular looms.

Principles of weft and warp knitting: Basic weft and warp knitted structures. Basic woven fabric constructions and their derivatives; crepe, cord, terry, gauze, leno and double cloth constructions. Peirce’s equations for fabric geometry; elastic model of plain woven fabrics; thickness, cover and maximum set of woven fabrics.

Textile Testing: Sampling techniques, sample size and sampling errors. Measurement of fibre length, fineness, crimp, strength and reflectance; measurement of cotton fibre maturity and trash content; HVI and AFIS for fibre testing. Measurement of yarn count, twist and hairiness; tensile testing of fibres, yarns and fabrics; evenness testing of slivers, rovings and yarns; testing equipment for measurement test methods of fabric properties like thickness, compressibility, air permeability, drape, crease recovery, tear strength, bursting strength and abrasion resistance. Statistical data analysis of experimental results. Correlation analysis, significance tests and analysis of variance; frequency distributions and control charts.

Preparatory Processes: Chemistry and practise of preparatory processes for cotton. Mercerization of cotton. Preparatory processes for nylon, polyester and acrylic and polyester/cotton blends.

Dyeing: Classification of dyes. Dyeing of cotton and polyester with appropriate dye classes. Dyeing polyester/cotton blends. Batch wise and continuous dyeing machines. Dyeing of cotton knitted fabrics and machines used. Methods for determination of wash, light and rubbing fastness. Evaluation of fastness properties with the help of greyscale.

Printing: Styles of printing. Printing thickeners including synthetic thickeners. Printing Auxiliaries. Printing of cotton with reactive dyes. Printing of polyester with disperse dyes. Methods of dye fixation after printing. Resist and discharge printing of cotton and polyester. Printing of polyester/cotton blends with disperse/reactive combination. Transfer printing of polyester. Developments in inkjet printing.

Finishing: Mechanical finishing of cotton. Stiff. Soft, wrinkle-resistant, water repellent, flame retardant and enzyme (bio-polishing) finishing of cotton. Milling, detailing and shrink resistant finishing of wool. Ant stat finishing of synthetic fibre fabrics. Heat setting of polyester.

Energy Conservation: the Energy Crisis, Energy conservation in spinning, weaving, processing, humidification and lighting.

Pollution: Treatment of textile effluents. Air pollution, Water pollution, Noise pollution, Dust pollution, Management of solid hazardous wastes, ISO-14001.