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MCQs

Total Questions : 74 | Page 3 of 8 pages
Question 21. Which of the following is an example of heterochain polymers?
  1.    Polyamide
  2.    Polycarbonate
  3.    Polyethylene
  4.    Polyacrylonitrile
 Discuss Question
Answer: Option B. -> Polycarbonate
Answer: (b).Polycarbonate
Question 22. Polyethylene and polystyrene are examples of which kind of polymers?
  1.    Hydrocarbon plastics
  2.    Chlorocarbon polymers
  3.    Acrylic material
  4.    Polyamides
 Discuss Question
Answer: Option A. -> Hydrocarbon plastics
Answer: (a).Hydrocarbon plastics
Question 23. Versalon, Zytel, and Plaskon are common trade names of which thermoplastic?
  1.    Acetal
  2.    Polycarbonate
  3.    Polyamide
  4.    Polyacrylonitrile
 Discuss Question
Answer: Option C. -> Polyamide
Answer: (c).Polyamide
Question 24. Which of the following are applications of polypropylene?
  1.    Buckets, bottle crates
  2.    CD cases, food boxes
  3.    Wire insulation, piping
  4.    Valves, fittings
 Discuss Question
Answer: Option A. -> Buckets, bottle crates
Answer: (a).Buckets, bottle crates
Question 25. Thermal resistance of polyimide is ______
  1.    100°C
  2.    250°C
  3.    540°C
  4.    760°C
 Discuss Question
Answer: Option B. -> 250°C
Answer: (b).250°C
Question 26. Thermosetting plastics are formed by ________
  1.    addition polymerization
  2.    copolymerization
  3.    condensation polymerization
  4.    isomerism
 Discuss Question
Answer: Option C. -> condensation polymerization
Answer: (c).condensation polymerization
Question 27. Which of the following is a property of thermosetting plastics?
  1.    Can be molded
  2.    Soft
  3.    Recyclable
  4.    Can be used at high temperatures
 Discuss Question
Answer: Option D. -> Can be used at high temperatures
Answer: (d).Can be used at high temperatures
Question 28. Which of the following is not an example of a thermoplastic polymer?
  1.    Urethane
  2.    Melamine
  3.    Epoxide
  4.    Acetal
 Discuss Question
Answer: Option D. -> Acetal
Answer: (d).Acetal
Question 29. Which among these is an example of a commodity thermosetting plastic polymer material?
  1.    Polyethylene
  2.    Polypropylene
  3.    Polystyrene
  4.    Phenolic
 Discuss Question
Answer: Option D. -> Phenolic
Answer: (d).Phenolic
Question 30. Phenolics are otherwise commonly known as _____
  1.    Bakelite
  2.    Polyformaldehyde
  3.    Urea formaldehyde
  4.    Melamine formaldehyde
 Discuss Question
Answer: Option A. -> Bakelite
Answer: (a).Bakelite

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