logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Polymer Technology Comments

  • Question
  • Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its


  • Options
  • A. elasticity
  • B. strength
  • C. plasticity
  • D. weathering characteristics

  • Correct Answer
  • weathering characteristics 


  • Polymer Technology problems


    Search Results


    • 1. Caprolactum, a raw material for the manufacture of nylon-6, is produced from

    • Options
    • A. phenol
    • B. naphthalene
    • C. benzene
    • D. pyridine
    • Discuss
    • 2. Trade name of __________ is neoprene.

    • Options
    • A. polychloroprene
    • B. polyisoprene
    • C. polytetraflouroethylene
    • D. poly vinyl acetate
    • Discuss
    • 3. Mastication of rubber means

    • Options
    • A. its softening.
    • B. a treatment to retard its deterioration due to oxidation.
    • C. improving its curing rate.
    • D. depression of its freezing point.
    • Discuss
    • 4. Cellulose is the main contituent of most __________ fibres.

    • Options
    • A. acrylic
    • B. spandex
    • C. synthetic
    • D. natural
    • Discuss
    • 5. Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.

    • Options
    • A. solid
    • B. liquid
    • C. combination of solid & liquid
    • D. neither solid nor liquid
    • Discuss
    • 6. __________ tubes are good substitude for human blood vessels onrheart by-pass operation.

    • Options
    • A. PVC
    • B. Polythene
    • C. Teflon/dacron
    • D. Polystyrene
    • Discuss
    • 7. Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is

    • Options
    • A. chloroethane
    • B. chlorophrene
    • C. isoprene
    • D. none of these
    • Discuss
    • 8. Thiokol is nothing but

    • Options
    • A. polysulphide rubber
    • B. polyamide fibre
    • C. engineering plastic
    • D. exponded polystyrene
    • Discuss
    • 9. Dacron is a/an

    • Options
    • A. polyester
    • B. unsaturated polyester
    • C. polyamide
    • D. inorganic polymer
    • Discuss
    • 10. Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.

    • Options
    • A. nitrile
    • B. silicone
    • C. neoprene
    • D. butyl
    • Discuss


    Comments

    There are no comments.

Enter a new Comment