3.5.2 Properties of Polyester: Shape : Controlled by Manufacturers. Luster : Controlled from semibright to dull. Elastic Recovery : Varies Elongation : Varies by type Resiliency : excellent Density : 1.38 g/cm Moisture absorption : very low Dimensional stability : Excellent Resistance to acids : Strong acids destroy fiber, weak acids have little or no effect.

2. Explain about any 5 parts of sewing machine. 3. Write about winding of bobbin. 4. How will you clamp the needle? PART � IV Answer in detail: 1. Explain in detail on parts of sewing machine. 2. What are the defects of sewing machine and how will you rectify it? 3. How will you maintain a sewing machine? Answers for objective questions: 1. (d) 2. (c) 3. (b) 4. (c) 5. (a) 9. BODY MEASUREMENT 9.1 INTRODUCTION: Garment fitting is based on taking body measurements. So it is very important for a dress maker to know how to take accurate measurements. The following points will be very useful, for this purpose.