Polymer Technology problems
- 1. Nylon 6 as compared to nylon 6, 6 has lower
Options- A. abrasion resistance.
- B. thermal stability.
- C. adhesion to rubber.
- D. hardness. Discuss
Correct Answer: abrasion resistance.
- 2. Which of the following is not a polymer of two monomers?
Options- A. Teflon
- B. Bakelite
- C. SBR
- D. None of these Discuss
Correct Answer: Teflon
- 3. Which of the following is not a polyolefin?
Options- A. Polystyrene
- B. Polypropylene
- C. Neoprene
- D. None of these Discuss
Correct Answer: Neoprene
- 4. __________ is a homopolymer.
Options- A. Neoprene
- B. Bakelite
- C. Nylon-66
- D. Terylene Discuss
Correct Answer: Neoprene
- 5. Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?
Options- A. Phosphorous
- B. Carbon black
- C. Pine oil
- D. Rosin Discuss
Correct Answer: Carbon black
- 6. Plastic tubes & pipes are generally made by __________ moulding.
Options- A. injection
- B. transfer
- C. extrusion
- D. compression Discuss
Correct Answer: extrusion
- 7. Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?
Options- A. Carbon
- B. Alkylated diphenyl amine
- C. Thiokol
- D. Magnesium Discuss
Correct Answer: Alkylated diphenyl amine
- 8. Zeigler process
Options- A. produces high density polythene.
- B. uses no catalyst.
- C. produces low density polythene.
- D. employs very high pressure. Discuss
Correct Answer: produces high density polythene.
- 9. Pick out the wrong statement.
Options- A. Polymeric fibres are never produced by addition polymerisation.
- B. Property of tackiness is exhibited by uncured rubber.
- C. Sharp melting point is not observed in thermoplastic polymers.
- D. Polythene generally has an excellent resistance to ultra violet rays. Discuss
Correct Answer: Polymeric fibres are never produced by addition polymerisation.
- 10. Pick out the wrong statement.
Options- A. Polystyrene is a thermoplastic polymer.
- B. Protein is a natural polymer.
- C. Neoprene is a natural rubber.
- D. Polythene is a copolymer, while SBR is a homopolymer. Discuss
Correct Answer: Neoprene is a natural rubber.
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