Answer. Silk is a natural carbohydrate fibre. v. Synthetic fibres are obtained from animals. I. Artificially prepared synthetic fibre which resembles silk is known as terylene. Advertisement. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. The most prevalent natural plant fiber is _____. Answer: 1 True, 2 False, 3 False, 4 True, 5 True, 6 False, 7 False It was prepared from coal water and air. Fleece of sheep. (iii) Jute is … True / False v) Viscose rayon is a protein fibre. State whether the following are true or false and correct the false statements: • (i) Fibre is the basic unit of all fabrics. View Answer. Question 9. Rayon is significantly heavier than cotton. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. It is not a natural fiber, yet it is not synthetic. Polyester is a natural fibre. True / False iv) A staple fibre is of infinite length. Fiber - B Yarn - C. Fabric A . Question 10. Any plant or tree could be used as the cellulose source – including bamboo – but the fiber that is created is rayon. A. Rayon. asbestos ... false. B. Terylene. Polyester is a natural fibre. Rayon is a man-made fiber created from the cellulose found in plants and trees and processed with a harsh chemical that releases hazardous air pollutants. C. Nylon. viii. So, what other false facts are there about rayon? You can refer to NCERT Solutions for Class 6 Science Chapter 3 Fibre to Fabric to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. (a) Nylon (b) Rayon (c) Polyester (d) All of these Answer: (d) All of these fibres are man-made. The threads or yarns are made from thin fluffy strands called fibres. Concept Notes & Videos 177. 2. Jute is the outer covering of coconut. It is an artificial/manmade fibre. 1) ___Nylon A) Natural fiber that is easy to dye and may shrink slightly in the wash 2) ___Acrylic B) Natural fiber that is strong and light, and usually dry cleaned 3) ___Rayon C) Manmade fiber that is soft and may form "pills" 4) ___Cotton D) Manmade fiber that is easy to dye and is washed at low temperatures Which of the following is a true statement? Nylon . D. Is a good conductor of electricity. Answer: a) Yarn is made from fibres: - (True) b) Spinning is a process of making fibres: - (False) c) Jute is the outer covering of coconut: - (False) d) The process of removing seed from cotton is called ginning: - (True) Which of these is a common natural fiber? Answers: 2. (ii) Which is a natural fibre? Ans: [Pollymers] 8. True or false? This fiber can be made to resemble most natural fibers in appearance and is often used in blends. State whether the following statements are True / False: i) Cotton is a man-made fibre. Whites are washed with the light colored garments. True. PLA. It is a fiber formed by regenerating natural materials into a usable form. It has the same molecular structure as cellulose. I think now that you understand the viscose rayon process you would agree it's not natural at all! Ans: Nylon 6. True. Cotton plants are grown for fibre and their seeds can be used for preparing cooking oil. Polyester is a natural fiber. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Whereas nylon or polyester, fibers are purely synthetic polymers, made entirely from chemicals. Angora wool is obtained from a species of rabbit. Answer: False, because mooga is the strongest variety of silk. A viscous solution of cellulose; A synonym of rayon; A specific term for viscose rayon — rayon made using the viscose process rayon nylon polyester silk? The assertion is true but the reason is false. Silk fibre is obtained from the stem of a plant. The national labor relations act is also called the wagner act.true or false? Rayon is a synthetic fibre made from a natural source : wood pulp. State whether the following are true or false and correct the false statements: (i) Fibre is the basic unit of all fabrics. 5. Safety pin … Answer: (D) ... Is a natural fibre. Linen. True. State whether the following statement is true or false: Polyester is a natural fibre… The national labor relations act is also called the wagner act.true or false? Cotton. Concept: Fibre. Solution: High elasticity and no wrinkling are the major advantages of nylon over rayon. D. Acrylic. Hence, though both are suitable for textile industry, nylon is more popular in making dresses and uniforms than rayon. (d) Weaving of yam makes a piece of fabric. true. Fiber to Fabric 1. Animal fibres are _____ and _____ . Viscose can mean:. ... T/F drape is one of the reasons why viscose rayon, modal, and lyocell fibers are used for women's apparel. False. Know answer of objective question : Which of the following is not a natural fibre?. How is Rayon made? (d) The process of removing seeds from cotton is called ginning. are manmade material used for making clothes. 6. ... Rayon is an example of a man-made natural fiber. This will clear students doubts about any question and improve application skills while preparing for board exams. Cotton and wool are natural polymers. Shearing is usually done in summer season-True CBSE CBSE Class 6. Rayon is different from synthetic fibre because. Identify the synthetic fibre which resembles wool. iii. State whether the following statement is true or false: Polyester is a natural fibre. D. The assertion is false but the reason is true. it has a silk like appearance. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. Other than that – both solutions are quite common. True False 0 points QUESTION 6 Rayon is a synthetic fiber, because it is manufactured from manufactured resources like cellulose present in wood pulp. It can be dyed in a wide variety of colors. Classify the following fibres as man-made and natural: (i) Nylon (ii) Wool (iii) Cotton (iv) Silk (v) Polyester (vi) Rayon (vii) Acrylic (viii) Jute 3. Shearing is usually done in summer season-True. ... Cotton and wool are natural polymers. Synthetic fibres are costlier than natural fibres. are obtained from natural sources plants or materials. Spinning is a process of making fibre. (D) The process of removing seeds from cotton is called ginning. In the acid bath, the solution is regenerated (that's where that greenwashed term comes from) back into cellulose fiber aka rayon. Health, 21.06.2019 16:30. Natural fiber that draws heat from the body. Answer: True; False; False; True; True; False; False; Question: Fill in the blanks: Plant fibres are obtained from _____ and _____ . … Which synthetic fibre is also called artificial silk? False. Mooga is the strongest variety of wool. Rayon is mixed with cotton to make bedsheets or mixed with wool to make carpets. true. Silk fiber is obtained from the stem of a plant. Answer: cotton plants, jute plants; wool, silk EASY. True / False vi) Silk is a natural fibre. • Classify the following fibres as man-made and natural: • (i) Nylon (ii) Wool (iii) Cotton (iv) Silk (v) Polyester (vi) Rayon(vii) Acrylic (viii) Jute 8. true or false. vii. Generic name of a man-made fiber. Fibre to Fabric Class 6 MCQs Questions with Answers. Fibers: All cloth materials are made up of long, narrow, thin structures called fibers.Fibers are obtained from natural as well as manmade sources. true or false. rayon false facts. Nylon is a synthetic fibre. Rayon is a natural fibre- False. Ans: Rayon 4. Answer: False, silk fibre is made up of a protein. False; True; False; True; True; True; Question 4. Is a natural fibre. False… Ans: Rayon 7. True False 0 points QUESTION 7 Please match the following: - A. That's a lot of science, chemicals, and steps. They get affected by bacterium Anthrax which causes a fatal blood disease called sorter's disease. D. Is a good conductor of electricity. Rayon is a cellulose fiber that was first produced to be a substitute for silk. Natural sources: Cotton, jute, silk, wool etc. It was the first fully synthetic fibre. This material, however, is less natural in comparison to cotton as the process that’s used to segment it is quite chemical-heavy. Q.2. Rayon is probably the most misunderstood of all fibers. 3. True / False ii) Viscose rayon was the first truly man-made fibre. g) Polyester is a natural fibre. Rayon is not considered as a synthetic fibre as it is regenerated from cellulose. its fibres can also be woven like those of natural fibres The truth is that the process of manufacturing rayon fabric is rather challenging to comprehend. (B) Spinning is a process of making fibres. (c) Jute is the outer covering of coconut. True / False iii) Coir is a cellulosic fibre. It's made of regenerated cellulose. II. Rayon is a regenerated cellulose fiber that is made from natural sources of cellulose, such as wood and related agricultural products. The quality of wool fibres is assessed based on several characteristics including fibre length, fineness, colour, cleanliness, damage and surface scales. Synthetics wrinkle easily. 2. • … true. Syllabus. ____ is a natural fiber that is not used due to health reasons. False. Question Bank Solutions 4944. Which artificial fibre is made from wood pulp? Which synthetic fibre is commonly used to make strong ropes? Weaving of yarn makes a piece of fabric. it is obtained from wood pulp. Question 8. True or false? (e) Silk fibre is obtained from the stem of a plant. iv. Read the following statement and mark the correct answer. As an inexpensive fiber, rayon has often been used in low-end,poorly constructed … Wool is a kind of animal fibre taken from hair of sheep and goats. The process of removing seed from cotton is called ginning. Textbook Solutions 4993. vi. It is a man-made fibre obtained from a natural source wood pulp. State whether the following statements are true or false. (ii) Filament are short fibres. True. T/F triexta is a generic name that is approved by the ftc. All plastics are made of long chain molecules called -----. Silkworm feeds on oak leaves. NCERT solutions for Science Class 6 CBSE chapter 3 (Fibre to Fabric) include all questions with solution and detail explanation. (F) Silk fibre is obtained from the stem of a plant. (E) Weaving of yarn makes a piece of fabric. Answer: (A) Is wrinkle free. Man made sources:Polyester, nylon, rayon etc. Choose the correct option in the following questions: (i) Which one of the following is a synthetic fibre? State whether the following statements are ‘true’ or false’: (a) Yam is made from fibres. f) Silk fibre is obtained from the stem of a plant. Rayon or Artificial Silk. (b) Spinning is a process of making fibres. You can call it a synthetic fibre or a man made natural fibre. (C) Jute is the outer covering of coconut. (A) Yarn is made from fibres. Answer: False, because silkworms feed on mulberry leaves. False. Answer this multiple choice objective question and get explanation and result.It is provided by OnlineTyari in English True. Natural polymers are the products of raw materials found in nature that can be extracted. True. Rayon is a regenerating natural fiber (cellulose fiber), which is made from the wood pulp. Explanation: Workers in wool industry generally suffer from sorter's disease-True. 3. 8. 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