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- Question
Most of the plastics are safe to be used upto a maximum temperature of __________ °C.
Options- A. 100
- B. 150
- C. 350
- D. 450
- Correct Answer
- 150
- 1. Most commonly used rubber vulcanisation agent is
Options- A. sulphur
- B. bromine
- C. platinum
- D. alumina Discuss
- 2. Which of the following is a natural polyamide fibre.
Options- A. Wool
- B. Silk
- C. Cotton
- D. None of these Discuss
- 3. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Options- A. teflon
- B. bakelite
- C. polyester
- D. nylon-66 Discuss
- 4. Polycaprolactum is nothing but
Options- A. orlon
- B. nylon 6, 6
- C. nylon 6
- D. saran Discuss
- 5. Rayon is superior to cotton in making gauge for wound treatment, because rayon
Options- A. is a synthetic polymer.
- B. does not stick to the wound unlike cotton.
- C. can absorb over 90% of its own weight of water.
- D. both (b) and (c). Discuss
- 6. __________ is a thermosetting plastic.
Options- A. PVC
- B. Polythene
- C. Bakelite
- D. polystyrene Discuss
- 7. Buna-N is also called
Options- A. butyl rubber
- B. nitrile rubber
- C. neoprene
- D. thiokol Discuss
- 8. __________ is a natural fibre.
Options- A. Cellulose
- B. Dacron
- C. Nylon-6
- D. none of these Discuss
- 9. Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
Options- A. Ni
- B. V2O5
- C. Fe
- D. aluminium triethyl combined with titanium tetrachloride Discuss
- 10. Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as
Options- A. hardeners
- B. anti-shrinkage agents
- C. plasticisers
- D. transparency improver Discuss
Polymer Technology problems
Search Results
Correct Answer: sulphur
Correct Answer: Wool
Correct Answer: bakelite
Correct Answer: nylon 6
Correct Answer: does not stick to the wound unlike cotton.
Correct Answer: Bakelite
Correct Answer: nitrile rubber
Correct Answer: Cellulose
Correct Answer: aluminium triethyl combined with titanium tetrachloride
Correct Answer: plasticisers
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