logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Polymer Technology Comments

  • Question
  • Which of the following is not a natural fibre?


  • Options
  • A. Silk
  • B. Viscose rayon
  • C. Wool
  • D. Cotton

  • Correct Answer
  • Viscose rayon 


  • Polymer Technology problems


    Search Results


    • 1. Styrene butadiene rubber (SBR) is

    • Options
    • A. a natural rubber.
    • B. another name of silicone rubber.
    • C. a synthetic polymer.
    • D. a synthetic monomer.
    • Discuss
    • 2. Dacron is a

    • Options
    • A. condensation polymerisation product of hexamethylene diamine and adipic acid.
    • B. condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol.
    • C. thermosetting material.
    • D. none of these.
    • Discuss
    • 3. __________ is not a condensation polymer.

    • Options
    • A. Teflon
    • B. Nylon-66
    • C. Dacron
    • D. Polystyrene
    • Discuss
    • 4. Acrylonitrile is mainly used in the __________ industry.

    • Options
    • A. polymer
    • B. printing
    • C. dyeing
    • D. photographic
    • Discuss
    • 5. __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

    • Options
    • A. Percent elongation
    • B. Resilience
    • C. Freezing point
    • D. Strength
    • Discuss
    • 6. Nylon-66 is a polyamide of

    • Options
    • A. hexamethylene diamine and adipic acid.
    • B. adipic acid and methyl amine.
    • C. vinyl chloride and formaldeyde.
    • D. none of these.
    • Discuss
    • 7. Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their

    • Options
    • A. molecular sizes.
    • B. magnitude of intermolecular forces.
    • C. resistance to heat.
    • D. polymerisation mechanism.
    • Discuss
    • 8. Thermosetting plastic materials

    • Options
    • A. can be repeatedly melted.
    • B. is useful for melt casting.
    • C. can not be melted after forming.
    • D. is useful for spinning.
    • Discuss
    • 9. Polycaprolactum is

    • Options
    • A. nylon-6
    • B. nylon-66
    • C. dacron
    • D. rayon
    • Discuss
    • 10. Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically

    • Options
    • A. polymethyl methacrylate (PMMA).
    • B. Polytetraflouroethylene(PTFE).
    • C. polycarbonates.
    • D. phenolic resins.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment