This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 3 Synthetic Fibres And Plastics – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The strongest fibre is A) Rayon. B) Nylon. C) Acrylic. D) Polyster. Show Answer Correct Answer: B) Nylon. 2. Name a natural fibre. A) Cotton. B) Polyester. C) Jute. D) Nylon. Show Answer Correct Answer: A) Cotton. 3. Which of the following are not the properties of Plastics? A) Thermal conductivity. B) Electrical conductivity. C) Flammability. D) Sonority. Show Answer Correct Answer: D) Sonority. 4. Which of the following polymers is not made by humans in an industrial process? A) Melamine. B) Bakelite. C) Nylon. D) Acrylic. E) Silk. Show Answer Correct Answer: E) Silk. 5. What was the initial raw compound used to make Chardonnet's silk? A) Nitrocellulose. B) Cuproammonium hydroxy carbonate. C) Cellulose tetraacetate. D) None of the above. Show Answer Correct Answer: A) Nitrocellulose. 6. Thermoplastics A) Melamine. B) Baketile. C) Floor tiles. D) PVC. Show Answer Correct Answer: D) PVC. 7. Which type of plastic is Bakelite? A) Thermosetting plastic. B) Thermoplastic. C) None of the above. D) None of the above. Show Answer Correct Answer: A) Thermosetting plastic. 8. Polycot is obtained by mixing ..... A) Nylon and wool. B) Polyester and wool. C) Nylon and cotton. D) Polyester and cotton. Show Answer Correct Answer: D) Polyester and cotton. 9. The plastic which cannot be recycled A) Jute. B) Rayon. C) Petrochemicals. D) Bakelite. Show Answer Correct Answer: D) Bakelite. 10. Which fibre is generally called fake fur A) Nylon. B) Polyester. C) Acrylic. D) Rayon. Show Answer Correct Answer: C) Acrylic. 11. Plastics which resists fire and can tolerate heat better than other plastics A) Bakelite. B) Melamine. C) Polythene. D) PVC. Show Answer Correct Answer: B) Melamine. 12. You must not wear synthetic fibres while working with fire because ..... A) They make you feel cold and so you may get a frost-bite. B) They are lustrous and so they shine under the flame. C) They melt on heating and stick to your body when they catch fire. D) None of the above. Show Answer Correct Answer: C) They melt on heating and stick to your body when they catch fire. 13. What are some advantages of synthetic materials? A) Cheaper to manufacture. B) Stronger than similar products made from natural material. C) Often better quality. D) All of the above. Show Answer Correct Answer: D) All of the above. 14. Fibres of ..... resemble that of silk and hence, it is popularly known as 'artificial silk'. A) Acrylic. B) Polyester. C) Rayon. D) Nylon. Show Answer Correct Answer: C) Rayon. 15. Which of the following are not in 5R' principal A) Refuse. B) Repurchase. C) Reuse. D) Recycle. Show Answer Correct Answer: B) Repurchase. 16. Synthetic fibres do not shrink A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. The 4 R Principle is A) Reduce, Reuse, Recycle, Recover. B) Remember, reduce, Recycle, Rejoice. C) Repeat, Rejoice, recycle, reduce. D) None of the above. Show Answer Correct Answer: A) Reduce, Reuse, Recycle, Recover. 18. Melamine's high nitrogen content make it ..... resistant A) Fire. B) Water. C) Weather. D) Cryogenous environment. Show Answer Correct Answer: A) Fire. 19. The raw material for making nylon is A) Cellulose. B) Wood pulp. C) Coal air water. D) None of these. Show Answer Correct Answer: C) Coal air water. 20. It is not advisable to wear clothes made of synthetic fibre while working near fire because A) They areuncomfortable in those works. B) They melt onheating and cause heavy burns. C) Theydo not absorb moisture. D) Theyare shiny and lustrous. Show Answer Correct Answer: B) They melt onheating and cause heavy burns. 21. Which synthetic fibre is known as artificial silk? A) Nylon. B) Rayon. C) Acrylic. D) None of the above. Show Answer Correct Answer: B) Rayon. 22. Which of the following is a thermosetting plastic? A) Formica. B) Polyester. C) PVC. D) Thermocol. Show Answer Correct Answer: A) Formica. 23. Type of Polyester A) Terelane. B) Nylon. C) Rayon. D) Acrylic. Show Answer Correct Answer: A) Terelane. 24. The 4R principle is A) Reduce, Reuse, Recycle, Recover. B) Remember, Reduce, Recycle, Rejoice. C) Repeat, Recycle, Rejoice, Reduce. D) None of these. Show Answer Correct Answer: A) Reduce, Reuse, Recycle, Recover. 25. Which of the following cannot be recycled? A) Toys. B) Cooker handles. C) Carry bags. D) Plastic chair. Show Answer Correct Answer: B) Cooker handles. ← PreviousNext →Related 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 5Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 6Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 8Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 9Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 10Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books