logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Polymer Technology Comments

  • Question
  • __________ practically possess no elasticity.


  • Options
  • A. Vulcanite or ebonite
  • B. Spandex fibre
  • C. Polysulphide rubber
  • D. Epoxy resin

  • Correct Answer
  • Vulcanite or ebonite 


  • Polymer Technology problems


    Search Results


    • 1. Polyurathane can not be used to make

    • Options
    • A. automobile cushion
    • B. thermal insulation in refrigerator
    • C. coating and adhesive
    • D. fibre reinforced plastic (FRP)
    • Discuss
    • 2. Branched chain polymers compared to linear polymers have higher

    • Options
    • A. density.
    • B. tensile strength.
    • C. melting point.
    • D. degree of irregularity in atomic packing.
    • Discuss
    • 3. Polymerisation of poly functional monomers produces polymers having

    • Options
    • A. good machanical strength
    • B. low viscosity
    • C. low melting point
    • D. none of these
    • Discuss
    • 4. Which of the following is the lowest cost plastic commercially available?

    • Options
    • A. Polythene
    • B. Teflon
    • C. Bakelite
    • D. PVC
    • Discuss
    • 5. Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.

    • Options
    • A. nylon
    • B. polyacrylonitrile
    • C. polypropylene
    • D. polyester
    • Discuss
    • 6. Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten

    • Options
    • A. teflon
    • B. bakelite
    • C. SBR
    • D. PVC
    • Discuss
    • 7. Which of the following is not an elastomer?

    • Options
    • A. Polyisoprene
    • B. Neoprene
    • C. Nitrile-butadiene
    • D. None of these
    • Discuss
    • 8. Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?

    • Options
    • A. PVC
    • B. Bakelite
    • C. PTFE
    • D. Epoxy resin
    • Discuss
    • 9. Bakelite (phenol-formaldehyde) resin can not be used as

    • Options
    • A. decorative paint.
    • B. decorative laminates.
    • C. electrical insulation.
    • D. glass reinforced plastics.
    • Discuss
    • 10. Styrene which is a monomer for the production of polystyrene, is commercially produced by the

    • Options
    • A. catalytic dehydrogenation of ethyl benzene.
    • B. dehydration of ethyl alcohol followed by hydrogenation.
    • C. reacting ethylene oxide with acetal-dehyde.
    • D. fermentation of starch.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment