Discussion
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- Question
Pick out the wrong statement.
Options- A. Polymeric fibres are never produced by addition polymerisation.
- B. Property of tackiness is exhibited by uncured rubber.
- C. Sharp melting point is not observed in thermoplastic polymers.
- D. Polythene generally has an excellent resistance to ultra violet rays.
- Correct Answer
- Polymeric fibres are never produced by addition polymerisation.
- 1. Zeigler process
Options- A. produces high density polythene.
- B. uses no catalyst.
- C. produces low density polythene.
- D. employs very high pressure. Discuss
- 2. Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?
Options- A. Carbon
- B. Alkylated diphenyl amine
- C. Thiokol
- D. Magnesium Discuss
- 3. Plastic tubes & pipes are generally made by __________ moulding.
Options- A. injection
- B. transfer
- C. extrusion
- D. compression Discuss
- 4. Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?
Options- A. Phosphorous
- B. Carbon black
- C. Pine oil
- D. Rosin Discuss
- 5. __________ is a homopolymer.
Options- A. Neoprene
- B. Bakelite
- C. Nylon-66
- D. Terylene Discuss
- 6. Pick out the wrong statement.
Options- A. Polystyrene is a thermoplastic polymer.
- B. Protein is a natural polymer.
- C. Neoprene is a natural rubber.
- D. Polythene is a copolymer, while SBR is a homopolymer. Discuss
- 7. Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%)?
Options- A. Water impermeable cellophane
- B. Polythene
- C. Cellulose acetate
- D. Teflon Discuss
- 8. Maximum consumption of polymers is in
Options- A. electrical insulation
- B. toys making
- C. coating and films
- D. packaging Discuss
- 9. 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
- 10. Polycaprolactum is nothing but
Options- A. orlon
- B. nylon 6, 6
- C. nylon 6
- D. saran Discuss
Polymer Technology problems
Search Results
Correct Answer: produces high density polythene.
Correct Answer: Alkylated diphenyl amine
Correct Answer: extrusion
Correct Answer: Carbon black
Correct Answer: Neoprene
Correct Answer: Neoprene is a natural rubber.
Correct Answer: Polythene
Correct Answer: coating and films
Correct Answer: does not stick to the wound unlike cotton.
Correct Answer: nylon 6
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