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