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