Discussion
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- Question
Flexible plastic pipes are made of
Options- A. high density polyethylene (HDPE).
- B. low density polyethylene (LDPE).
- C. polypropylene.
- D. unsaturated polyester.
- Correct Answer
- low density polyethylene (LDPE).
- 1. Synthetic polymer produced by using terephthalic acid and ethylene glycol is
Options- A. terylene
- B. nylon-66
- C. PVC
- D. polyesterene Discuss
- 2. Polyvinyl chloride (PVC) is
Options- A. a thermosetting material.
- B. a condensation polymerisation product.
- C. made by employing emulsion polymerisation.
- D. none of these. Discuss
- 3. Ebonite is a/an
Options- A. highly vulcanised rubber.
- B. natural rubber.
- C. unvulcanised raw rubber.
- D. adhesive. Discuss
- 4. 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
- 5. The conversion of caprolactum in the above case is about __________ percent.
Options- A. 25
- B. 50
- C. 70
- D. 90 Discuss
- 6. Epoxy resin is
Options- A. not used for surface coating.
- B. a good abrasive.
- C. an elastomer.
- D. a polyester. Discuss
- 7. 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
- 8. __________ scrap can be recycled & reutilised.
Options- A. Bakelite
- B. Epoxy resin
- C. Polythene
- D. none of these Discuss
- 9. Main constituent of natural rubber is
Options- A. polystyrene
- B. polyisoprene
- C. polybutadiene
- D. poly chloroprene Discuss
- 10. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Options- A. hexamethylene diamine and the ring.
- B. hexamethylene diamine and the adipic acid.
- C. adipic acid and the ring.
- D. none of these. Discuss
Polymer Technology problems
Search Results
Correct Answer: terylene
Correct Answer: made by employing emulsion polymerisation.
Correct Answer: highly vulcanised rubber.
Correct Answer: copolymerisation
Correct Answer: 90
Correct Answer: a good abrasive.
Correct Answer: Teflon
Correct Answer: Polythene
Correct Answer: polyisoprene
Correct Answer: hexamethylene diamine and the adipic acid.
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