Discussion
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- Question
Polyvinyl chloride (PVC) is
Options- A. a thermosetting material.
- B. a condensation polymerisation product.
- C. made by employing emulsion polymerisation.
- D. none of these.
- Correct Answer
- made by employing emulsion polymerisation.
- 1. Ebonite is a/an
Options- A. highly vulcanised rubber.
- B. natural rubber.
- C. unvulcanised raw rubber.
- D. adhesive. Discuss
- 2. Polymerisation process in which two or more monomers of chemically different nature take part is called
Options- A. copolymerisation
- B. addition polymerisation
- C. chain polymerisation
- D. none of these Discuss
- 3. The conversion of caprolactum in the above case is about __________ percent.
Options- A. 25
- B. 50
- C. 70
- D. 90 Discuss
- 4. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called
Options- A. polyurethane
- B. silicone rubber
- C. teflon
- D. epoxy resin Discuss
- 5. Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its
Options- A. tensile strength
- B. chemical resistance
- C. flexibility
- D. all (a), (b) & (c) Discuss
- 6. Synthetic polymer produced by using terephthalic acid and ethylene glycol is
Options- A. terylene
- B. nylon-66
- C. PVC
- D. polyesterene Discuss
- 7. Flexible plastic pipes are made of
Options- A. high density polyethylene (HDPE).
- B. low density polyethylene (LDPE).
- C. polypropylene.
- D. unsaturated polyester. Discuss
- 8. Epoxy resin is
Options- A. not used for surface coating.
- B. a good abrasive.
- C. an elastomer.
- D. a polyester. Discuss
- 9. Which of the following polymers is used for making a non stick coating on frying pans?
Options- A. Bakelite
- B. Teflon
- C. Perspex
- D. PVC Discuss
- 10. __________ scrap can be recycled & reutilised.
Options- A. Bakelite
- B. Epoxy resin
- C. Polythene
- D. none of these Discuss
Polymer Technology problems
Search Results
Correct Answer: highly vulcanised rubber.
Correct Answer: copolymerisation
Correct Answer: 90
Correct Answer: teflon
Correct Answer: flexibility
Correct Answer: terylene
Correct Answer: low density polyethylene (LDPE).
Correct Answer: a good abrasive.
Correct Answer: Teflon
Correct Answer: Polythene
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