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Syllabus

Yarn and its Construction — Syllabus

Telangana Open School (TOSS) · Class 12 · Community Science (Home Science)

What Yarn and its Construction covers in Telangana Open School (TOSS) Class 12 Community Science: 4 topics, for the 2026-27 session.

50 questions30 flashcards5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Community Science (Home Science) · 2026-27

Topics in Yarn and its Construction

1

What is Yarn?

  • A yarn is a continuous strand of textile fibers or filaments twisted together to form a thread-like structure suitable for weaving or knitting.
  • Yarns are made through a process called spinning.
  • Natural fibers (like cotton, wool) are spun mechanically, while synthetic fibers (like polyester, nylon) are spun chemically using a spinneret.
2

Types of Yarns Based on Fiber Length

  • Yarns are classified into two main types based on fiber length: staple yarns and filament yarns.
  • Staple yarns are made from short fibers (like cotton or wool) and have a fuzzy, warm texture.
  • Filament yarns are made from long, continuous fibers (like silk or synthetic fibers) and are smooth and lustrous.
3

Types of Filament Yarns

  • Filament yarns are of two types: continuous filament and textured filament.
  • Continuous filament yarns are smooth, strong, and lustrous with no protruding ends.
  • Textured filament yarns are modified to have crimps, loops, or coils to increase bulk, absorbency, and comfort.
4

Types of Yarns Based on Construction

  • Simple yarns: Uniform in structure — include single, ply, and cord yarns.
  • Double yarns: Two or more strands used together but not twisted — used for softness and luster.
  • Novelty (fancy) yarns: Irregular in thickness, used for decorative effects in fabrics.

Key Concepts

Central concept: Yarn

SpinningFiberTypes of YarnFilament YarnsSimple YarnsNovelty YarnsYarn TwistBlends

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Frequently Asked Questions

What are the important topics in Yarn and its Construction for Telangana Open School (TOSS) Class 12 Community Science (Home Science)?
Key topics in Yarn and its Construction include What is Yarn?, Types of Yarns Based on Fiber Length, Types of Filament Yarns, Types of Yarns Based on Construction. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Yarn and its Construction for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 50 practice questions on Yarn and its Construction. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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