logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Polymer Technology Comments

  • Question
  • Softening point of high density polythene is about __________ °C.


  • Options
  • A. 85
  • B. 135
  • C. 165
  • D. 205

  • Correct Answer
  • 135 


  • Polymer Technology problems


    Search Results


    • 1. Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.

    • Options
    • A. thermoplastic
    • B. thermosetting
    • C. linear
    • D. glass like transparent
    • Discuss
    • 2. Polyesters are manufactured by the polycondensation reaction of

    • Options
    • A. dibasic acid with dihydric alcohol.
    • B. a single monomer.
    • C. carboxylic acid with ethylene.
    • D. inorganic acid with ethylene glycol.
    • Discuss
    • 3. Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten

    • Options
    • A. saturated polyester
    • B. polyurathane
    • C. polystyrene
    • D. either (b) or (c)
    • Discuss
    • 4. __________ is a copolymer.

    • Options
    • A. styrene butadiene rubber (SBR)
    • B. Neoprene
    • C. PVC
    • D. None of these
    • Discuss
    • 5. The starting material used for the manufacture of caprolactum is

    • Options
    • A. ethyl benzene
    • B. cyclohexane
    • C. ethylene glycol
    • D. DMT
    • Discuss
    • 6. Collapsible tubes for tooth paste are produced by __________ extrusion.

    • Options
    • A. direct
    • B. indirect
    • C. impact
    • D. none of these
    • Discuss
    • 7. Rayon is a __________ fibre.

    • Options
    • A. cellulosic
    • B. polyamide
    • C. polyester
    • D. natural
    • Discuss
    • 8. Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an

    • Options
    • A. polyester
    • B. polyamide
    • C. polyisoprene
    • D. polystyrene
    • Discuss
    • 9. The only natural thermoplastic resin, which is a product of animal life is

    • Options
    • A. rosin
    • B. shellac
    • C. amber
    • D. copal
    • Discuss
    • 10. Rain coats are made of

    • Options
    • A. neoprene
    • B. PVC
    • C. polyurathane
    • D. SBR
    • Discuss


    Comments

    There are no comments.

Enter a new Comment