This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Synthetic Fibres And Plastics > Class 8 Science Chapter 3 Synthetic Fibres And Plastics – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 6 (41 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Rajesh found that woollen blankets were expensive as it was made from natural fibre. He wanted a blanket which was similar to woollen blanket, but cheaper. He can buy a blanket made of ..... Fibre. A) Nylon. B) Cotton. C) Silk. D) Acrylic. Show Answer Correct Answer: D) Acrylic. 2. Polymer comes from A) French word. B) Greek word. C) German word. D) Latin word. Show Answer Correct Answer: B) Greek word. 3. The plastics which cannot be remoulded by heating again A) Thermoplastics. B) Thermosetting plastics. C) Both. D) None. Show Answer Correct Answer: B) Thermosetting plastics. 4. Which of the below correctly states 4 R principle. A) Reduce, Reuse, Retire and Recover. B) Reduce, Reuse, Recycle and Recover. C) Release, Reflect, Reuse and Reduce. D) Reactive, Reuse, Recycle and Recover. Show Answer Correct Answer: B) Reduce, Reuse, Recycle and Recover. 5. Which of the following synthetic fibres are used to as a substitute of glass? A) Teflon. B) Polystyrene. C) PET. D) Perspex. Show Answer Correct Answer: D) Perspex. 6. Select the correct option regarding the given Assertion and Reasoning:Assertion (A):Rayon is a synthetic fibreReason (R):It is obtained from coal, water and grass A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is not the correct explanation of A. C) A is false and R is true. D) Both A and R are false. Show Answer Correct Answer: D) Both A and R are false. 7. SYNTHETIC FIBRES: A) HAVE LUSTRE. B) NEED LOT OF IRONING. C) DO NOT GET ELECTRICALLY CHARGED. D) ABSORB MOISTURE. Show Answer Correct Answer: A) HAVE LUSTRE. 8. Cotton is a natural polymer. Whats is its chemical name? A) Wool. B) Cellulose. C) Silk. D) Natural rubber. Show Answer Correct Answer: B) Cellulose. 9. Natural Materials are more durable than Synthetic Materials A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. While preparing best fabric mixing of a natural fibre with one or more artificial fibres.This process is called as A) Polymerization. B) Blending. C) Stitching. D) None of these. Show Answer Correct Answer: B) Blending. 11. Which type of plastic is used in making an insulation cover? A) Thermosetting plastic. B) Thermoplastic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Thermoplastic. 12. This fiber's high stretch and recovery make it ideal for swimwear. A) Rayon. B) Polyester. C) Spandex. D) Nylon. Show Answer Correct Answer: C) Spandex. 13. Which fibre is also known as 'Artificial silk' A) Acrylic. B) Nylon. C) Rayon. D) Polyester. Show Answer Correct Answer: C) Rayon. 14. Which fibre is meant to be strong than a steel wire A) Nylon. B) Silk. C) Wool. D) Rayon. Show Answer Correct Answer: A) Nylon. 15. Which of the following is not a characteristic of synthetic fibers? A) Synthetic fibers are very durable. B) Synthetic fibers absorb very little water. C) Synthetic fibers are wrinkle resistant. D) Synthetic fibers are extremely thick and strong. Show Answer Correct Answer: D) Synthetic fibers are extremely thick and strong. 16. Which type of plastics become soft on heating and harden when cooled? A) Thermosetting plastics. B) Bakelite. C) Thermoplastics. D) Polyvinyl chloride. Show Answer Correct Answer: C) Thermoplastics. 17. Which country has banned the usage of plastic bags? A) Argentina. B) Iceland. C) China. D) Norway. Show Answer Correct Answer: C) China. 18. Synthetic fibres are generally: A) Hydrophilic. B) Hydrophobic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydrophobic. 19. Plastics which have cross-linked arrangement of molecules are A) Thermoelectric plastics. B) Thermoplastics. C) Thermosetting plastics. D) None of these. Show Answer Correct Answer: C) Thermosetting plastics. 20. Rayon is the different from synthetic fiber because A) It has a silk like appearance. B) It is obtained from wood pulp. C) Its fibers can also be woven like those of natural fibers. D) All the above. Show Answer Correct Answer: B) It is obtained from wood pulp. 21. Main source of raw material for producing synthetic fibre is: A) Refined oil. B) Petroleum. C) CNG. D) LPG. Show Answer Correct Answer: B) Petroleum. 22. Polyster is made up of A) Easter. B) Cotton. C) Nylon. D) Rayon. Show Answer Correct Answer: A) Easter. 23. Silk fibre is obtained from silk worm whereas artificial silk is obtained by the chemical treatment of ..... A) Paper pulp. B) Rayon. C) Coal, air and water. D) Wood pulp. Show Answer Correct Answer: D) Wood pulp. 24. Cotton is made of ..... as its polymer unit A) Cellulose. B) Plants. C) Animals. D) Wood pulp. Show Answer Correct Answer: A) Cellulose. 25. ..... is the first fully synthetic fibre. A) Nylon. B) Polyester. C) Rayon. D) Acrylic. Show Answer Correct Answer: A) Nylon. 26. What is the term for the non-biodegradable substance that cannot be decomposed by natural processes? A) Plastic. B) Thermoplastic. C) Thermosetting plastic. D) Polymer. Show Answer Correct Answer: A) Plastic. 27. What is correct about Synthetic Fibres? A) They are made by humans in labs and industries using petrochemicals. B) They cannot be obtained from Plants or Animals. C) The examples of synthetic fibres are Rayon, Nylon, Acrylic and Polyester. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 28. Read the given statements and mark the appropriate answer.Statement 1:Fabric made from polyester does not get wrinkled easily.Statement 2:Polyester is a natural fibre. A) Both statements 1 and 2 are true andstatement 2 is the correct explanationof statement 1. B) Both statements 1 and 2 are truebut statement 2 is not the correctexplanation of statement 1. C) Both statements 1 and 2 are false. D) Statement 1 is true and statement 2is false. Show Answer Correct Answer: D) Statement 1 is true and statement 2is false. 29. WHICH OF THE FOLLOWING STATEMENTS ABOUT PLASTICS ARE TRUE?1. ALL PLASTICS DO NOT HAVE THE SAME ARRANGEMENT OF MONOMER UNITS.2. MELAMINE RESISTS FIRE AND AND CAN TOLERATE HEAT BETTER THAN OTHER PLASTICS.3. PLASTICS WITH CROSS-LINKED MONOMERS ARE ALSO KNOWN.4. PLASTICS HAVE LIMITED APPLICATIONS. A) 1 AND 3 ONLY. B) 3 AND 4 ONLY. C) 1, 2 AND 3 ONLY. D) 1, 3 AND 4 ONLY. Show Answer Correct Answer: C) 1, 2 AND 3 ONLY. 30. What is the type of arrangement of polymers in Thermosetting Plastic? A) Linear arrangement of polymers. B) Random arrangement of polymers. C) Cross-linked arrangement of polymers. D) None of the above. Show Answer Correct Answer: C) Cross-linked arrangement of polymers. 31. ..... plastics can be reheated and remolded. A) Thermo. B) Thermosetting. C) Semi. D) None of the above. Show Answer Correct Answer: A) Thermo. 32. Which natural fibre does acrylic resemble? A) Wool. B) Silk. C) Cotton. D) None. Show Answer Correct Answer: A) Wool. 33. Which term is used for polymers made up of a large number of glucose units? A) Protein. B) Fructose. C) Cellulose. D) Polyester. Show Answer Correct Answer: C) Cellulose. 34. ..... is one of the 4Rs. A) Recover. B) Regenerate. C) Rescue. D) None of these. Show Answer Correct Answer: A) Recover. 35. A natural fibre obtained from plants A) (a) Cotton. B) (d) Ketone. C) (b) Wool. D) (pencil. Show Answer Correct Answer: A) (a) Cotton. 36. Polyester is repeating units of ..... A) Ester. B) Ether. C) Carbon. D) Beads. Show Answer Correct Answer: A) Ester. 37. Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of: A) Rayon. B) Nylon. C) Cotton. D) Polyester. Show Answer Correct Answer: B) Nylon. 38. The raw materials used in making nylon are A) Wood pulp. B) Cellulose. C) Coal, water and air. D) All of these. Show Answer Correct Answer: C) Coal, water and air. 39. Polythene And PVC are A) Thermoplastic. B) Thermosetting Plastic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Thermoplastic. 40. Which of the following is not a thermoplastic? A) Teflon. B) Melamine. C) Polyester. D) PVC. Show Answer Correct Answer: B) Melamine. 41. Which of the following can choke the digestive tract of animals and can cause their death? A) Fodder. B) Polythene bags. C) Dry grass. D) Green leaves. Show Answer Correct Answer: B) Polythene bags. ← PreviousRelated QuizzesScience QuizzesClass 8 QuizzesClass 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 1Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 2Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 3Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 4Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books