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