[The existing syllabi for the subjects under Paper-I now (previously Paper -I and Paper –II)
have been clubbed together and constituted as a single syllabus]
PAPER-I Code No: 114
FIBRE PRODUCTION :- Classification of textile fibres. Principles of polymerization, Manufacturing
details of viscose rayon, Poly ethylene terephthalate, nylon 6 and 6,6, poly-acrylonitrile, poly
propylene, polyaramides carbon and glass fibres. Texturization of fibres.
FIBRE COMPOSITES :- Resins, additives to resins. Types and characteristics of the re-inforcing
fibres, Different textile structure used for re-inforcements.
SPINNING PREPARATORY PROCESSES :- Sequence of processes used to prepare the staple
fibres (cotton, jute, wool and man-made fibres) for yarn spinning. Process optimization.
CONVENTIONAL YARN SPINNING :- Yarn formation using ring spinning method. Spinning
limitations. Doubling of yarns.
NEW METHODS OF YARN SPINNING:- Yarn production by open end, friction and air-jett spinning
methods. Techno - economic comparison with convetional method.
PREPARATORY PROCESSES FOR FABRIC FORMATION:- Sequence of processes used to
prepare the yarn for fabric formation in looms and kaitting machines. Process optimization.
WEAVING MACHINES:- Fabric formation in conventional and high speed looms. Process
optimization. Economic viability of high speed looms.
KNITTING MACHINES:- Fabric production in weft knitting machines. Comparison of woven and
knitted fabrics, Principles of warp knitting. Production of garments from woven and knitted fabrics.
CHEMICAL PROCESSING:- Preparation of material for coluration and finishing, principles involved
in dyeing and printing. Physical and chemical finishing operation.
QUALITY ASSESSMENT:- Sampling method, Determination of sample size. Testing of fibres yarns
and fabrics for various qualities. Statistical Significance Test.
STRUCTURAL MECHANICS OF YARN :- Yarn geometry, Fibre migration and its characterization,
Prodiction of filament and spun yarn tensile behavious under different conditions.
STRUCTURAL MECHANICS OF FABRICS :- Fabric geometry, Prediction of deformation behaviour
of woven, knitted and non - woven fabrics.
TEXTILE MACHINE DESIGN :- Design of Cams, gear trains, clutches and brakes for application in
textile machines. Kinematics of comber and loom operations.
MACHINING OPERATIONS :- Material Selection, Different machining operations. Surface
treatments, Tolerance Limits.
PNEUMATICS:- Application of free air and compressed air in textile machinery. Air pressure
measurements and its control.
WORK STUDY:- Work and time measurement. Motion time analysis. Resources allocation and
PRODUCTION PLANNING:- Balancing of textile machines in different departments to produce
required quantity of and products taking into account various process parameters.
MACHINERY MAINTENANCE:- Break-down and preventive maintenance for textile machines.
Types and Selection of Lubricants, Lubrication devices, Depreciation and replacement studies.
SELECTION OF MOTORS:- Selection of electric motors for various textile machines. Application of
variators and invertors. Smooth starting of machines. Microprocessor applications. Power
ENVIRONMENTAL CONDITIONS IN TEXTILE MILLS:- Plant lay-out, Material handling. Lighting
and humidification, Safety devices]
Paper 2 - TNPSC Combined Engineering Services Exam General Studies Syllabus