Question 1: Define the term 'weaving' in the context of fabric construction. Include key elements involved in the process.

Answer: Weaving is a fabric construction technique where two sets of yarns, the warp (longitudinal) and weft (transverse), are interlaced at right angles to create fabric. The warp yarns are held taut on a loom, and the weft yarns are passed over and under the warp yarns to form the fabric.

Question 2: Describe the main difference between woven and knitted fabrics in terms of their construction and flexibility.

Answer: Woven fabrics are made by interlacing two sets of yarns at right angles, resulting in a stable and less stretchable fabric. Knitted fabrics are made by interlooping yarns in a series of connected loops, making them more elastic and flexible.

Question 3: Explain how a pile fabric differs from a plain woven fabric. Provide two examples of pile fabrics.

Answer: A pile fabric has a raised surface with loops or cut ends of yarns creating a plush or textured surface, unlike plain woven fabric which has a flat, smooth surface. Examples of pile fabrics include velvet and terry cloth.

Question 4: Sketch a simple diagram of a fabric showing the interlacing of warp and weft yarns. Label the warp and weft yarns clearly.

Answer: The sketch should show parallel vertical lines labeled as warp yarns and horizontal lines crossing them labeled as weft yarns, with interlacing points demonstrating the weaving pattern.

Question 5: Describe the construction process of non-woven fabrics and give two examples of such materials.

Answer: Non-woven fabrics are made by bonding or felting fibers together using heat, chemicals, or mechanical processes, without weaving or knitting. Examples include felt and bonded fabric used in filters or disposable products.

Question 6: Identify and explain two advantages of using knitted fabrics in clothing manufacture.

Answer: Knitted fabrics are highly elastic, providing comfort and flexibility in clothing. They also have a good drape and stretch, making them suitable for fitted garments.

Question 7: Sketch a diagram illustrating the difference between a warp and a weft yarn in a woven fabric. Include labels.

Answer: The diagram should show vertical yarns labeled as 'warp' and horizontal yarns labeled as 'weft,' crossing at right angles, with clear labels for each.

Question 8: Explain the term 'knitting' and describe one method used to produce knitted fabrics.

Answer: Knitting is a fabric construction method where yarns are interlooped to create a flexible, stretchy fabric. One method is hand knitting using needles, where loops are formed and connected to create the fabric.

Question 9: Describe the main features of a fabric that is constructed using a non-woven process. How does this impact its uses?

Answer: Non-woven fabrics are typically lightweight, flexible, and have a felted or bonded texture. They are often used in disposable products, filters, and medical applications due to their cost-effectiveness and quick production process.

Question 10: Sketch a basic pattern of a fabric showing a plain weave structure. Indicate the points where yarns interlace.

Answer: The sketch should display a grid-like pattern with horizontal and vertical lines crossing at regular intervals, with points of interlacing marked or shaded to show the plain weave structure.