BHT503 Quality Evaluation of Fibers and Yarns Syllabus
AKTU B.Tech · 5th Semester · Unit-wise syllabus (effective 2024-25)
BHT503 Quality Evaluation of Fibers and Yarns (also written as KHT503) is a subject in Semester 5 of the AKTU B.Tech programme, prescribed by Dr. A.P.J. Abdul Kalam Technical University. The syllabus is divided into 5 units: Moisture relation and testing. The complete unit-wise topic list, course outcomes and reference books are given below, taken from the official AKTU syllabus effective from 2024-25.
BHT503 Subject Details
| Subject Code | BHT503 / KHT503 |
|---|---|
| Subject Name | Quality Evaluation of Fibers and Yarns |
| University | Dr. A.P.J. Abdul Kalam Technical University (AKTU) |
| Course | B.Tech (Bachelor of Technology) |
| Year / Semester | 3rd Year · 5th Semester |
| Total Units | 5 |
| Scheme Effective From | 2024-25 |
| Last Verified | 2026-08-19 |
BHT503 Quality Evaluation of Fibers and Yarns Unit-Wise Syllabus
Official AKTU syllabus (effective 2024-25) — 5 units.
Unit 1
Scope and Objectives of testing of textile materials; concept of quality; Selection of samples for quality assessment – random and biased samples – squaring technique and zoning technique for fibre selection; yarn sampling - use of random numbers - sampling for various types of yarn tests- yarn strength, linear density, elongation, twist.
Unit 2: Moisture relation and testing
Moisture relation and testing: standard atmosphere condition, moisture regain and moisture content and measurement of atmospheric condition, Fiber testing: Fibre length and length uniformity measuring techniques; Fibre strength and its relation to yarn strength. Fiber bundle strength tests. HVI, AFIS
Unit 3
Fibre fineness – definition- comparison of various fibres – its importance in yarn manufacture; measurement techniques. Cotton fibre maturity, estimation by microscopic method - maturity ratio and index, estimation by other methods – optical, air flow, differential dyeing; its importance in spinning. Fibre trash – influence on quality; measurement – principle and estimation of micro-dust for rotor spinning. High volume instrument for total fiber quality measurement.
Unit 4
Yarn Appearance and grading, yarn mass evenness parameters – measurement –nature of irregularity: - index of irregularity; limit irregularity electronic mass evenness determination – Yarn fault classification –Yarn abrasion resistance – importance and measuring technique. Yarn hairiness – importance and assessment techniques. Twist in single and ply yarns –twist direction – twist factor – twist and yarn strength; twist measurement and breaking twist angle measurement. Analysis of data and test reports such as, Classimat.
Unit 5
Tensile characteristics – Tensile Strength Testing modes – CRT, CRE and CRL, study of strength, single yarn strength; Lea count strength product (CSP) and Corrected Count Strength Product (CCSP), elongation, work of rupture, initial modulus, work factor and yield point – determination of yield point. Stress-strain relations of natural and manmade fibres, influence of fibre structure, humidity and temperature on tensile characteristics. Time effects Study of creep phenomena. Elastic recovery and its relation to stress and strain of fibres; mechanical conditioning of fibres and its influence on elastic recovery. Load cycling and extension cycling-their effect on elastic recovery. Introduction about torsional and flexural rigidity of fibers.
BHT503 Course Outcomes
- Objective:
- 1. To make the students understand the principle and method of working of equipment’s used for
- testing of fibres and yarns.
- 2. To make the students understand the concepts related to tensile testing modes like CRT, CRE, CRL.
- 3. To make the students understand the properties of different fibers& yarn technique.
- 4. To make the students understand the concepts related to yarn evenness, twist and yarn strength.
- 5. To make the students understand the concepts related to different aspects of yarn testing.
BHT503 Reference Books
- Booth J.E., “Principle of Textile Testing”, Butterworth Publications, London, 1989
- Saville B.P., “Physical Testing of Textiles”, Textile Institute, Manchester, 1998
- Kothari V. K., “Testing and Quality Management”, Progress in Textile Technology Vol.1, IAFL
- Arindam Basu, “Textile Testing”, The South India Textile Research Association, Coimbatore.
- P.Angappan , R.Gopalakrishna, “Textile Testing”, S.S.M. Institute Of Textile Technology Staff abd
Frequently Asked Questions about BHT503
What is the syllabus of BHT503 Quality Evaluation of Fibers and Yarns?
The AKTU BHT503 Quality Evaluation of Fibers and Yarns syllabus is divided into 5 units: Moisture relation and testing. The complete topic list for each unit is published on this page, taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus effective from 2024-25.
How many units are there in BHT503?
BHT503 Quality Evaluation of Fibers and Yarns has 5 units in the AKTU syllabus.
Is BHT503 the same subject as KHT503?
Yes. AKTU renumbered its B.Tech subject codes from the 2022-23 session onwards, so the same subject appears as BHT503 and KHT503 depending on the scheme year. The syllabus content is the same.
Which semester is BHT503 taught in?
BHT503 Quality Evaluation of Fibers and Yarns is taught in Semester 5 of the 3rd year of the AKTU B.Tech programme.
Where can I download BHT503 previous year question papers?
AKTU B.Tech previous year question papers for every semester are available to download free on Ryzenstudy, with no login or registration required.
Is this the official AKTU syllabus for BHT503?
Yes. Every topic on this page is taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus document (AKTU B.Tech 3rd Year Handloom & Textile Technology Syllabus), effective from 2024-25. A direct link to the original AKTU PDF is provided at the top of this page. Last verified on 2026-08-19.
Related AKTU Syllabus
Source: Dr. A.P.J. Abdul Kalam Technical University official syllabus — AKTU B.Tech 3rd Year Handloom & Textile Technology Syllabus, effective from 2024-25. Ryzenstudy is not affiliated with AKTU. Content last verified on 2026-08-19.