Question 1: Describe the main difference between woven and knitted fabrics in terms of their construction process.

Answer: Woven fabrics are made by interlacing two sets of yarns at right angles through a weaving process, while knitted fabrics are created by looping yarns together through knitting. Wovens are generally more stable and less stretchy, whereas knits are more elastic.

Question 2: List three common construction techniques used to produce fabric surfaces and briefly explain each one.

Answer: 1. Embroidery: decorating fabric with stitched patterns or designs. 2. Pleating: folding fabric in regular, structured pleats to add texture. 3. Appliqué: sewing pieces of fabric onto a base fabric to create decorative designs.

Question 3: Explain how the process of quilting adds to the fabric's structure and functionality.

Answer: Quilting involves sewing layers of fabric and padding together, which creates a thicker, insulated material. This adds strength, durability, and warmth to the fabric.

Question 4: Sketch a simple diagram showing the construction of a plain weave fabric. Label the warp and weft yarns.

Answer: A correct sketch should show a grid pattern where the warp yarns run vertically and the weft yarns run horizontally, interlacing over and under each other in a regular pattern.

Question 5: Describe what a 'bias cut' involves and explain why it might be used in fabric construction.

Answer: A bias cut involves cutting fabric diagonally across the grain at a 45-degree angle. This allows the fabric to stretch more and create a draped, fitted effect, often used in clothing design.

Question 6: Identify and explain the function of interfacing in fabric construction.

Answer: Interfacing is a material sewn or fused to fabric to add stiffness, support, or shape. It is commonly used in collars, cuffs, or waistbands to maintain structure.

Question 7: Sketch a basic diagram of a fabric with a pile surface. Label the pile and base fabric.

Answer: A correct sketch should show a base fabric with loops or cut ends of yarns projecting from the surface, representing the pile, with the underlying fabric labeled as the base.

Question 8: List two advantages and two disadvantages of using knitted fabrics in textile products.

Answer: Advantages: 1. Highly elastic and stretchy, providing comfort. 2. Good for form-fitting garments. Disadvantages: 1. Less stable and more prone to stretching out of shape. 2. Can be more prone to snagging and pilling.

Question 9: Describe how fabric finishes can alter the construction and appearance of a fabric.

Answer: Fabric finishes, such as brushing, calendering, or coating, can improve texture, appearance, and performance. For example, a brushed finish makes the fabric softer and warmer, while a coating can make it waterproof.

Question 10: Imagine you are designing a decorative fabric with textured surface. Which construction technique would you choose and why?

Answer: A suitable technique could be embroidery or quilting, as both create textured surfaces. Embroidery adds decorative stitches and patterns, while quilting adds raised areas with stitched layers, providing texture and visual interest.