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 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following fiber threads is actually stronger than a steel wire of similar thickness? A) Cotton. B) Silk. C) Wool. D) Nylon. Show Answer Correct Answer: D) Nylon. 2. This synthetic fibre is more stronger than Steel A) Nylon. B) Cotton. C) Wool. D) Rayon. Show Answer Correct Answer: A) Nylon. 3. Polycot is made by mixing two types of fibres namely A) Silk+cotton. B) Wool+cotton. C) Polyethylene+Cotton. D) Polyester+Cotton. Show Answer Correct Answer: D) Polyester+Cotton. 4. Which of the following is a natural material? A) Wood. B) Nylon. C) Bakelite. D) Polyester. Show Answer Correct Answer: A) Wood. 5. One of the advantages of nylon over rayon is that nylon: A) Has low elasticity. B) Is a good conductor of electricity. C) Is a natural fibre. D) Is wrinkle free. Show Answer Correct Answer: D) Is wrinkle free. 6. Which of the following is called artificial silk? A) Acrylic. B) Polyester. C) Nylon. D) Rayon. Show Answer Correct Answer: D) Rayon. 7. Which of the following is not true for synthetic fibres A) Long lasting lustre. B) Do not wrinkle. C) More expensive than natural fibres. D) Easy to clean. Show Answer Correct Answer: C) More expensive than natural fibres. 8. Terylene is a popular A) Rayon. B) Wool. C) Acrylic. D) Polyester. Show Answer Correct Answer: D) Polyester. 9. Why do we wear cotton clothes in summer? A) Cotton absorbs more heat as it is synthetic fibre. B) Cotton radiates less heat. C) Cotton is a natural fibre and absorbs sweat easily. D) Cotton is black in colour. Show Answer Correct Answer: C) Cotton is a natural fibre and absorbs sweat easily. 10. Which of the following is not true about Terylene A) Absorbs water. B) Used for making rain coats. C) Moth resistant. D) Wrinkle resistant. Show Answer Correct Answer: A) Absorbs water. 11. Carpets are made from? A) Rayon and Cotton. B) Cotton and Wool. C) Rayon and Wool. D) Wool. Show Answer Correct Answer: C) Rayon and Wool. 12. How are synthetic fibres made A) By using plastics. B) By using humans. C) By using petrochemicals. D) By using plants. Show Answer Correct Answer: C) By using petrochemicals. 13. Electric switches and plugs are made of ..... A) PVC. B) Melamine. C) Nylon. D) Bakelite. Show Answer Correct Answer: D) Bakelite. 14. Polyethylene terephthalate belongs to which class of synthetic polymer? A) Plastic. B) Polyester. C) Nylon. D) Polyolefin. Show Answer Correct Answer: B) Polyester. 15. First fully synthetic fibres is A) Nylon. B) Acrylic. C) Polyester. D) Rayon. Show Answer Correct Answer: A) Nylon. 16. Which synthetic fibre is used as a substitute for wool? A) Rayon. B) Acrylic. C) Polyester. D) Nylon. Show Answer Correct Answer: B) Acrylic. 17. Identify the product based on the given features.I. It is a man-made product.II. It has a cross link arrangement of monomer units.III. It is used for making goods like wire coverings, switch boards, laptops, etc. A) Lycra. B) Thermosetting plastics. C) Rayon. D) Thermoplastics. Show Answer Correct Answer: B) Thermosetting plastics. 18. Identify A and B:-A-I am a fibre which you wear in summer.B-I am the monomer used to make this fibre. A) A-RayonB-Wood Pulp. B) A-CottonB-Petrochemicals. C) A-RayonB-Petrochemicals. D) A-CottonB-Cellulose. Show Answer Correct Answer: D) A-CottonB-Cellulose. 19. Why plastic is used in aircraft and spaceship. A) Plastics are lighter compared to metals. B) Plastics are cheaper. C) Plastics are easy to handle. D) Plastic can be recycled. Show Answer Correct Answer: A) Plastics are lighter compared to metals. 20. The long-chained polymers made by linking several ester units is called A) Polystyrene. B) Polyester. C) Polypropene. D) Polythene. Show Answer Correct Answer: B) Polyester. 21. Which of the following is not a blended fibre? A) Polycotton. B) Terywool. C) Terrycot. D) Terrylene. Show Answer Correct Answer: D) Terrylene. 22. The coating on modern non-stick cookware and electric iron is of A) Teflon. B) Nylon. C) Rayon. D) Terrycot. Show Answer Correct Answer: A) Teflon. 23. Poly + Cot = ..... A) Polycot. B) Shelf. C) Polycotton. D) Terrycot. Show Answer Correct Answer: A) Polycot. 24. What all are mainly used in lycra synthesis? A) (OH) group compounds and acetate compounds. B) Diamino acids and DIisocynate. C) Nitrogen and magnesium stearate. D) All of the above. Show Answer Correct Answer: D) All of the above. 25. Formaldehyde and phenol makes ..... A) Epoxy. B) Melamine. C) Bakelite. D) PVC. Show Answer Correct Answer: C) Bakelite. 26. Which of the following is an example of animal fibre? A) Silk. B) Cotton. C) Jute. D) Nylon. Show Answer Correct Answer: A) Silk. 27. In word polymer ..... poly means A) Many. B) Few. C) One. D) None. Show Answer Correct Answer: A) Many. 28. Identify the product based on the given features.I. It is a man-made product.II. It has a linear arrangement of monomer units.III. It is used for making goods like toys, combs, containers, etc. A) Thermoplastics. B) Lycra. C) Rayon. D) Thermosets. Show Answer Correct Answer: A) Thermoplastics. 29. The uniforms of firemen are coated with ..... as it is flame resistant. A) Melamine. B) Nylon. C) Teflon. D) None of these. Show Answer Correct Answer: A) Melamine. 30. What is the coating of pans made up of? A) Teflon. B) Bakelite. C) Rayon. D) Polywool. Show Answer Correct Answer: A) Teflon. 31. ..... synthetic fibre absorbs moisture. A) Polyester. B) Rayon. C) Lycra. D) Spandex. Show Answer Correct Answer: B) Rayon. 32. Name the plastic used for making water pipes A) Acrylic. B) Polythene. C) PVC. D) Bakelite. Show Answer Correct Answer: C) PVC. 33. Nylon is not used for making A) Ropes for climbing. B) Parachutes. C) Seat belts in cars. D) Blankets. Show Answer Correct Answer: D) Blankets. 34. Special cookwares are used in microwave ovens for cooking because A) They have non-stick coating. B) The heat cooks the food but does not affect the plastic vessel. C) They are fire resistant. D) None of the above. Show Answer Correct Answer: B) The heat cooks the food but does not affect the plastic vessel. 35. Which of the following statements are / is incorrect about synthetic fibers? A) They dry quickly. B) Less expensive. C) They are light, easy to wash. D) They are weak and elastic. Show Answer Correct Answer: D) They are weak and elastic. 36. In plastic the arrangement of individual units may be ..... A) Linear or cross linked. B) Linear or straight linked. C) All the above. D) None of the above. Show Answer Correct Answer: A) Linear or cross linked. 37. What is the full form of PET? A) Poly ethene terephthalate. B) Poly ethylene phthalate. C) Poly ethene terethalate. D) Poly ethylene terephthalate. Show Answer Correct Answer: D) Poly ethylene terephthalate. 38. Which is the best material for making switchboards A) Melamine. B) Bakelite. C) PVC. D) None of the above. Show Answer Correct Answer: B) Bakelite. 39. Which synthetic fibre has high tensile strength? A) Spandex. B) Celluloid. C) Nylon. D) Jute. Show Answer Correct Answer: C) Nylon. 40. Which of the following fabrics is made bymixing two types of fibres? A) Cotton. B) Polywool. C) Rayon. D) Nylon. Show Answer Correct Answer: B) Polywool. 41. Which of the following groups contain all synthetic substances? A) Acrylic, Silk, Wool. B) PVC, Polythene, Bakelite. C) Nylon, Terylene, Wool. D) Cotton, Polycot, Rayon. Show Answer Correct Answer: B) PVC, Polythene, Bakelite. 42. Scientists have developed synthetic fibres to A) Earn money. B) To meet ever increasing demand. C) Perform various experiments. D) None of these. Show Answer Correct Answer: B) To meet ever increasing demand. 43. Polyvinyl Chloride is an example of A) Thermosetting plastics. B) Thermoplastics. C) None of these. D) None of the above. Show Answer Correct Answer: B) Thermoplastics. 44. To a recycling of plastic garbage two types of beams are made available by the municipality. what are they A) Green bin and blue bin. B) Red and green bin. C) Blue and red bin. D) None of the above. Show Answer Correct Answer: A) Green bin and blue bin. 45. Melamine is used for making A) Kitchenware. B) Floor tiles. C) Fire-resistant fabrics. D) All of them. Show Answer Correct Answer: D) All of them. 46. The fibre that burns with the smell of burning paper is A) Wool. B) Acrylic. C) Nylon. D) Cotton. Show Answer Correct Answer: D) Cotton. 47. Tents are made from A) Rayon. B) Nylon. C) Plastic. D) Polyester. Show Answer Correct Answer: B) Nylon. 48. Which of the following properties of plasticmakes it most convenient for use? A) It is easily remouldable. B) It is light, strong and durable. C) It is non-reactive. D) All of the above. Show Answer Correct Answer: D) All of the above. 49. Which of the following will soak less water? A) Silk. B) Wool. C) Cotton. D) Nylon. Show Answer Correct Answer: D) Nylon. 50. In which year was nylon fibre made A) 1921. B) 1957. C) 1942. D) 1931. Show Answer Correct Answer: D) 1931. 51. Rayon was obtained by chemical treatment of ..... ? A) Leaves. B) Wood pulp. C) Flex. D) Paper. E) Silk worm. Show Answer Correct Answer: B) Wood pulp. 52. Which of the following is called regenerated fibre? A) Silk. B) Rayon. C) Nylon. D) Plastic. Show Answer Correct Answer: B) Rayon. 53. Which of the following is not the characteristic of synthetic plastics? A) Lustrous and colourful. B) Low tensile strength. C) Non-biodegradeable. D) Non-conductors. Show Answer Correct Answer: B) Low tensile strength. 54. Which of the following is not a common property of plastics? A) Non-reactive. B) Good conductor of electricity. C) Light in weight. D) Durable. Show Answer Correct Answer: B) Good conductor of electricity. 55. The full form of PET is ..... A) Polyethylene Terephthalate. B) Polyethylene Terephtalate. C) PET has no full form. D) PolyTerephthalate. Show Answer Correct Answer: A) Polyethylene Terephthalate. 56. The plastics which do not remould again on heating are called: A) Thermosetting plastics. B) Thermoplastics. C) Both of these. D) None of these. Show Answer Correct Answer: A) Thermosetting plastics. 57. Sneha has classified a few materials as shown in the table.S. No. Material Type/Nature 1. Nylon Synthetic and non biodegradable 2. Jute Natural and non-biodegradable 3. Coir Synthetic and biodegradable 4. Wool Natural and biodegradable 5. Acrylic Blended and biodegradable 6. Polyester Synthetic and non-biodegradableThe materials which are classified incorrectly are A) 1, 3 and 4 only. B) 2, 4 and 5 only. C) 2, 3 and 5 only. D) 1, 3 and 6 only. Show Answer Correct Answer: C) 2, 3 and 5 only. 58. What is the correct meaning of Recover in 5R principle? A) Recovering the landfill areas. B) Recovering the garbage. C) Recovering the energy used in manufacture of plastic items. D) None of the above. Show Answer Correct Answer: C) Recovering the energy used in manufacture of plastic items. 59. Nylon was made in ..... without using any natural raw material. A) Water. B) 1931. C) 2001. D) None of these. Show Answer Correct Answer: B) 1931. 60. Which of the following is not yhe common property of a plastic A) Non-reactive. B) Good conductor of electricity. C) Durable. D) Light in weight. Show Answer Correct Answer: B) Good conductor of electricity. ← PreviousNext →Related 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 5Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books