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  • Question
  • 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

  • Correct Answer
  • Silicone rubber 


  • Polymer Technology problems


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    • 1. Which of the following is a copolymer?

    • Options
    • A. Polystyrene
    • B. SBR
    • C. P.T.F.E.
    • D. Polypropylene
    • Discuss
    • 2. Which of the following is not the commercial name of polymethylmethacrylate (PMMA)?

    • Options
    • A. Perspex
    • B. Lucite
    • C. Plexiglass
    • D. Teflon
    • Discuss
    • 3. 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
    • 4. 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
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. Catalyst used in the production of high density polythene by low pressure Ziegler process is

    • Options
    • A. aluminium triethyl activated with TiCl4
    • B. platinum
    • C. molybdenum
    • D. Nickel
    • Discuss


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