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- Question
Lavatory cisterns are normally made of
Options- A. expanded polystyrene
- B. saturated polyester
- C. perspex
- D. PVC
- Correct Answer
- expanded polystyrene
- 1. Which of the following is generally not used as eord for synthetic rubber tyre casing?
Options- A. Dacron
- B. Nylon
- C. Cellulose
- D. None of these Discuss
- 2. Nitrile rubber is produced by the polymerisation of
Options- A. acrylonitrile & butadiene.
- B. acrylonitrile & styrene.
- C. isobutylene & isoprene.
- D. none of these. Discuss
- 3. The main use of butadiene is
Options- A. as a plasticiser for unsaturated polyester.
- B. in the manufacture of synthetic rubber.
- C. as an anti-skimming agent in paint.
- D. none of these. Discuss
- 4. Which of the following polymers has the tendency of decomposing before melting?
Options- A. Polystyrene
- B. Nylon
- C. PVC
- D. None of these Discuss
- 5. Plasticisers are added to synthetic plastics to
Options- A. impart flexibility.
- B. improve workability during fabrication.
- C. develop new improved properties not present in the original resin.
- D. all (a), (b) and (c). Discuss
- 6. Zeigler - Natta catalyst (AlR3 - AlCl3) is used in the polymerisation of
Options- A. vinyl acetate
- B. vinyl chloride
- C. propylene
- D. styrene Discuss
- 7. __________ is not a polyester fibre.
Options- A. Terylene
- B. Dacron
- C. Nylon
- D. Polyacrylonitrite Discuss
- 8. Nylon-6 is manufactured from
Options- A. caprolactum.
- B. adipic acid and hexamethylene diamine.
- C. maleic anhydride and hexamethylene diamine.
- D. sebasic acid and hexamethylene diamine. Discuss
- 9. Styrene butadiene rubber (SBR) as compared to natural rubber has
Options- A. poor tensile strength.
- B. poorer resistance.
- C. greater amount of heat build up heavy loading.
- D. all (a), (b) ana (c). Discuss
- 10. Which of the following low molecular weight (<104 ), soft & waxy polymer is used in chewing gum?
Options- A. Cellulose acetate
- B. Polyvinyl acetate
- C. Thiokol
- D. PVC Discuss
Polymer Technology problems
Search Results
Correct Answer: Cellulose
Correct Answer: acrylonitrile & butadiene.
Correct Answer: in the manufacture of synthetic rubber.
Correct Answer: PVC
Correct Answer: all (a), (b) and (c).
Correct Answer: propylene
Correct Answer: Nylon
Correct Answer: caprolactum.
Correct Answer: all (a), (b) ana (c).
Correct Answer: Polyvinyl acetate
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