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- Question
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
Options- A. polyvinyl alcohol
- B. polyvinyl acetale
- C. polyvinyl butyral
- D. PVC
- Correct Answer
- polyvinyl butyral
- 1. Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
Options- A. nylon-66
- B. teflon
- C. polyester
- D. bakelite Discuss
- 2. Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser?
Options- A. Ethylene glycol
- B. Stearic acid estors
- C. Tricresyl phosphate
- D. Esters of phthalic acid Discuss
- 3. In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.
Options- A. viscose rayon
- B. acrylic
- C. polyvinyl acetate
- D. saturated polyester Discuss
- 4. Density of low density polythene is about __________ gm/c.c.
Options- A. 0.38
- B. 0.56
- C. 0.81
- D. 0.91 Discuss
- 5. Polyvinyl acetate is never used for making
Options- A. moulded articles
- B. fibres
- C. adhesives
- D. all (a), (b) & (c) Discuss
- 6. Styrene butadiene rubber (SBR) is never used for making
Options- A. coated fabrics
- B. front wheel tyres of aeroplanes (i.e., heavy duty tyres)
- C. gaskets
- D. soles of shoes Discuss
- 7. Which of the following is generally not drawn into fibre?
Options- A. Polyamide
- B. Unsaturated polyesters
- C. Saturated polyesters
- D. Polyacrylonitrile Discuss
- 8. Polycondensation reaction of polymerisation
Options- A. does not produce linear polymers.
- B. produces only thermoplastic material.
- C. produces epoxy polymers.
- D. does not need any catalyst. Discuss
- 9. In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
Options- A. terylene
- B. polybutadiene
- C. PVC
- D. polypropylene Discuss
- 10. __________ is normally used for the manufacture of refrigerator components and transistor parts.
Options- A. Polyproylene
- B. Polystyrene
- C. Polyester
- D. Polyurathene Discuss
Polymer Technology problems
Search Results
Correct Answer: teflon
Correct Answer: Ethylene glycol
Correct Answer: saturated polyester
Correct Answer: 0.91
Correct Answer: moulded articles
Correct Answer: front wheel tyres of aeroplanes (i.e., heavy duty tyres)
Correct Answer: Unsaturated polyesters
Correct Answer: produces epoxy polymers.
Correct Answer: terylene
Correct Answer: Polystyrene
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