Discussion
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- Question
Which of the following is a copolymer?
Options- A. Polystyrene
- B. SBR
- C. P.T.F.E.
- D. Polypropylene
- Correct Answer
- SBR
- 1. Which of the following is not the commercial name of polymethylmethacrylate (PMMA)?
Options- A. Perspex
- B. Lucite
- C. Plexiglass
- D. Teflon Discuss
- 2. Nylon-66 compared to nylon-6 has
Options- A. lower melting point.
- B. more abrasion resistant properties.
- C. higher hardness.
- D. all (a), (b) and (c). Discuss
- 3. Silicone resins, which are highly water repellant and has good heat resistance can not be used
Options- A. as room temperature adhesive.
- B. as grease & lubricant.
- C. hydraulic fluid for heat transfer.
- D. resin for lamination. Discuss
- 4. In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
Options- A. PTFE
- B. Buna-S
- C. PMMA
- D. Polycaprolactum Discuss
- 5. Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.
Options- A. -20 to 25
- B. 50 to 75
- C. 100 to 150
- D. 250-280 Discuss
- 6. Which of the following rubbers has the widest service temperature range (-75 to 275°C)?
Options- A. Butyl rubber
- B. Silicon rubber
- C. Nitrile rubber
- D. Silicone rubber Discuss
- 7. Elastomers are
Options- A. thermosetting material.
- B. exemplified by protein derivatives.
- C. having high flexural strength.
- D. having very high tensile strength and heat resistance. Discuss
- 8. All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic
Options- A. filaments
- B. pipes
- C. buckets
- D. tubings Discuss
- 9. Epoxy resins (i.e., epoxide polymers)
Options- A. are made by addition polymerisation reaction only.
- B. contain an epoxy group (
) at the ends of the polymer. - C. are cross-linked polymers only.
- D. use emulsion polymerisation methods. Discuss
- 10. Which of the following polymers does not belong to the class of polyacrylate polymer?
Options- A. PMMA
- B. Polyacrylonitrile
- C. Polyethyl acrylate
- D. None of these Discuss
Polymer Technology problems
Search Results
Correct Answer: Teflon
Correct Answer: higher hardness.
Correct Answer: as room temperature adhesive.
Correct Answer: Buna-S
Correct Answer: 250-280
Correct Answer: Silicone rubber
Correct Answer: having high flexural strength.
Correct Answer: buckets
Correct Answer: contain an epoxy group (
) at the ends of the polymer. Correct Answer: None of these
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