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  • Question

  • Which of the following is not the commercial name of polymethylmethacrylate (PMMA)?


  • Options
  • A. Perspex
  • B. Lucite
  • C. Plexiglass
  • D. Teflon

  • Correct Answer
  • Teflon 

    • Polymer Technology problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. 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
    • 4. 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
    • 5. Unbreakable crockeries are made from __________ polymers.

    • Options
    • A. polystyrene
    • B. melamine
    • C. polystyrene
    • D. polyurathane
      • Discuss
    • 6. Which of the following is a copolymer?

    • Options
    • A. Polystyrene
    • B. SBR
    • C. P.T.F.E.
    • D. Polypropylene
      • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. 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

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