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