11.Colors are added in the solution bath as required. Synthetic fibers have very low levels of absorbency. Dear STudent, your question is incomplete, you have not provided options. Give examples which indicate that nylon fibres are very strong. 12.Crimp is applied on filament after passing spinneret : 13.Most of the fibers are hydrophilic in nature. Nylon (a) Nylon is a general term given to the synthetic polymer made from two types of monomer, diamine … Another group of man-made fibres (and by far the larger group) is the synthetic fibres. Do you agree, if yes comment how? View Answer Q2: Increasing application of synthetic fibres is actually helping in conservation of forests. Car seat belts. Choose the correct option in the following questions: Question 1. Cotton. It is a man-made product. Silk. Multiple Choice Questions (MCQs) Which of the following is not a man-made material? Cotton is used in the manufacturing of bedsheets and usually used in summers as it keeps us ventilated. Polyester synthetic fibre is durable and resistant to shrinkage and stretch. Question 14. Wool. (a) Plastic (b) Wood (c) Cement (d) Nylon. As a result, fibers are also prone to static. Raw materials for preparation of synthetic fibres are (a) coal (b) petroleum (c) natural gas (d) all of these. A synthetic fiber is shiny and silky, while natural fibers are always dull and rough. 5. Regenerated fibers are formed from natural polymer through a … The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large number of ester groups. Nylon, the first synthetic fiber in the "fully synthetic" sense of that term, [citation needed] was developed by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s. 1. Jute) and pericyclic fibres (e.g. 2. (Inme se konsa Synthetic fibre hei?) The fabric is washed easily, and dries quickly. polypropylene) or poly-condensation (e.g. Which of the following is not a synthetic fibre Share with your friends. (a) Polymers cannot form fibres (b) Polymers can be both natural and synthetic (c) Polymer is a natural substance (d) Polymer is a synthetic substance. Which of the following is synthetic fibre? (a)polyester (b)nylon (c)acrylic (d)silk 2 See answers nitya67 nitya67 Silk is not a synthetic fibre mariospartan mariospartan Answer: Silk is not a synthetic fiber. This is helpful in the manufacturing of mats or carpets that are used at home for decoration. A. During summers, synthetic fibres do not absorb sweat and a person wearing it feels uncomfortable. Question 3. The basic component of plant fibres is (a) protein (b) cellulose (c) starch (d) none of these. The natural fibres which are obtained from these animals are utilised for the production of wool. Mineral fiber (like asbestos). This means cutting a lot of trees, which leads to deforestation. (a) Nylon (b) Cotton (c) Silk (d) Wood. acrylic. Write the importance of synthetic polymers in our life. Identify the product based on the given features. Give the characteristics of synthetic fibres. That is why they are known as synthetic fibres. Chapter 3 Synthetic Fibre Objective Questions . Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. The fibre is almost pure cellulose. Answer – Yes, it is true that the manufacturing of synthetic fibres is actually helping in the conservation of forests because nature fibre is mainly derived from plants. Synthetic fibers are made of polymers that do not occur naturally, and are produced entirely in the laboratory, most generally from petroleum byproducts. answer choices . Which of the following is a bad conductor of electricity? Natural fibres may be of plant or animal origin. (ii) Synthetic fibres do not melt on heating. II. answer choices . Linen. Synthetic Fibres and Plastics - Chapter Wise CBSE Solved Question and Answer Based On NCERT. It is used for making goods like toys, combs, containers, etc. 12.It contains natural crimp. Which of the following is not a synthetic fibre? Pick the synthetic fibre out of the following? On the down side, however, along the petrochemical origin, polyester fabrics have a “plastic” handle. Fiber produced from these polymers includes nylon, polyesters, acrylics, polyurethanes, etc. Explain the difference between thermoplastic and thermosetting plastics. This list may not reflect recent changes (). 11.It grows with its natural color. Also write the false statements in their correct form. Q14. The nylon fibers are elastic, strong and water resistant. The core consists of a continuous monofilament synthetic fibre yarn. Synthetic fibres do not absorb water and as a result, they dry faster than cotton or wool. Synthetic fibers are made from different chemicals, having their own properties. Page No 32: Question 9: Fibres are made from melted plastic by passing it through fine holes in a _____ Answer: Fibres are made from melted plastic by passing it through fine holes in a spinneret. The structure of synthetic polymers depends on manufacturing processes and the character and origin of monomer. Yak, sheep, camel, goat are the common animals which produce fur on their body which can be obtained and used in the production of wool. Thus, the correct answer is option A. This fiber was created as a wool substitute and is soft, warm, resilient and great for making lightweight blankets? Nylon and terylene are produced through condensation polymerisation. Protein fibers. The following properties pertain to which fiber: high elongation,affected by sunlight, low absorbency, and high elastic recovery. A blend of wool and kevlar, the synthetic fibre widely used in body armour, was lighter, cheaper and worked better in damp conditions than kevlar alone. 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