Discussion
Home ‣ Chemical Engineering ‣ Polymer Technology Comments
- Question
Dacron is a/an
Options- A. addition polymer
- B. condensation polymer
- C. polyester
- D. both (b) and (c)
- Correct Answer
- both (b) and (c)
- 1. Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding
Options- A. glycerol
- B. nitro cellulose
- C. camphor
- D. none of these Discuss
- 2. Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
Options- A. organic peroxides
- B. sulphuric acid
- C. hydroflouric acid
- D. none of these Discuss
- 3. Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
Options- A. epoxy resin
- B. polyamide
- C. alkyd resin
- D. phenolic resin Discuss
- 4. Which of the following is not present in bagasse fibre?
Options- A. Cellulose
- B. Lignin
- C. Pentogens
- D. None of these Discuss
- 5. Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.
Options- A. polyurathane
- B. polysulphone
- C. polycarbonate
- D. polyester Discuss
- 6. Bakelite is a/an
Options- A. addition polymer
- B. elastomer
- C. thermoplastic
- D. none of these Discuss
- 7. The major component of acrylic fibres is
Options- A. polyamides
- B. polyolefins
- C. polyacrylonitrile
- D. polyesters Discuss
- 8. Tyres are made by
Options- A. injection moulding
- B. extrusion
- C. rotational moulding
- D. compression moulding Discuss
- 9. Paper like thin plastic articles can be produced by
Options- A. blow moulding
- B. vacuum thermo forming
- C. injection moulding
- D. none of these Discuss
- 10. Non sulphonated hard bakelites are not used for making
Options- A. ion-exchange resins
- B. fountain pen barrels
- C. formica table tops
- D. combs Discuss
Polymer Technology problems
Search Results
Correct Answer: camphor
Correct Answer: organic peroxides
Correct Answer: alkyd resin
Correct Answer: None of these
Correct Answer: polycarbonate
Correct Answer: none of these
Correct Answer: polyacrylonitrile
Correct Answer: rotational moulding
Correct Answer: vacuum thermo forming
Correct Answer: ion-exchange resins
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.