Discussion
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- Question
A copolymer is formed by the combination of two or more monomer molecules
Options- A. in a chain without the elimination of water.
- B. with the elimination of small amount of water.
- C. of the same monomer by elimination of small molecules of water.
- D. none of these.
- Correct Answer
- in a chain without the elimination of water.
- 1. Polystyrene is a light, transparent, thermoplastic material used for making
Options- A. toys and combs
- B. packaging bags
- C. non-sticking utensils
- D. electrical insulation Discuss
- 2. Linear polymers are normally
Options- A. thermosetting.
- B. thermosplastic.
- C. elastometric.
- D. having extremely high softening point. Discuss
- 3. The monomer for the production of neoprene rubber is
Options- A. acetylene
- B. chloroprene
- C. isoprene
- D. none of these Discuss
- 4. Which of the following is not a thermoplastic material?
Options- A. Epoxy polymer
- B. PVC
- C. Polystyrene
- D. Polythene Discuss
- 5. Hot drink (e.g, tea) cups are usually made of
Options- A. polystyrene
- B. polythene
- C. polypropylene
- D. PVC Discuss
- 6. Bristles of tooth brushes are made of
Options- A. nylon-6
- B. nylon-66
- C. polystyrene
- D. PVC Discuss
- 7. Polystyrene is a __________ plastic at room temperature.
Options- A. ductile
- B. brittle
- C. malleable
- D. none of these Discuss
- 8. Alkyd resin can not be used for making
Options- A. plasticiser
- B. paint & varnish
- C. fibres
- D. film forming materials Discuss
- 9. Valcunisation of rubber decreases its
Options- A. tensile strength.
- B. resistance to organic solvents.
- C. tackiness.
- D. working temperature range. Discuss
- 10. Plastic articles are normally produced by __________ moulding.
Options- A. green sand
- B. injection
- C. shell
- D. dry sand Discuss
Polymer Technology problems
Search Results
Correct Answer: toys and combs
Correct Answer: thermosplastic.
Correct Answer: chloroprene
Correct Answer: Epoxy polymer
Correct Answer: polystyrene
Correct Answer: nylon-66
Correct Answer: brittle
Correct Answer: fibres
Correct Answer: tackiness.
Correct Answer: injection
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