Discussion
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- Question
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at
Options- A. 1:3
- B. 3:1
- C. 1:2
- D. 2:1
- Correct Answer
- 1:3
- 1. Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.
Options- A. nitrile
- B. silicone
- C. neoprene
- D. butyl Discuss
- 2. Dacron is a/an
Options- A. polyester
- B. unsaturated polyester
- C. polyamide
- D. inorganic polymer Discuss
- 3. Thiokol is nothing but
Options- A. polysulphide rubber
- B. polyamide fibre
- C. engineering plastic
- D. exponded polystyrene Discuss
- 4. Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
Options- A. chloroethane
- B. chlorophrene
- C. isoprene
- D. none of these Discuss
- 5. __________ tubes are good substitude for human blood vessels onrheart by-pass operation.
Options- A. PVC
- B. Polythene
- C. Teflon/dacron
- D. Polystyrene Discuss
- 6. The organic acid monomer in nylon 66 is
Options- A. sebasic acid
- B. terephthalic acid
- C. adipic acid
- D. benzoic acid Discuss
- 7. Dacron (or terylene) fibres as compared to nylon fibres have
Options- A. better heat & acid resistant properties.
- B. poorer resistance to alkalis.
- C. poorer dyeability.
- D. all (a), (b) and (c). Discuss
- 8. Neoprene is the trade name of
Options- A. polyurethane
- B. phenol formaldehyde
- C. polychlorophrene
- D. styrene butadiene rubber (SBR) Discuss
- 9. Polymethyl methacrylate (PMMA) is known as
Options- A. bakelite
- B. teflon
- C. perspex
- D. nylon-6 Discuss
- 10. __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
Options- A. Epoxy
- B. Amino
- C. Alkyd
- D. Phenolic Discuss
Polymer Technology problems
Search Results
Correct Answer: butyl
Correct Answer: polyester
Correct Answer: polysulphide rubber
Correct Answer: chlorophrene
Correct Answer: Teflon/dacron
Correct Answer: adipic acid
Correct Answer: all (a), (b) and (c).
Correct Answer: polychlorophrene
Correct Answer: perspex
Correct Answer: Amino
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