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  • Question
  • 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

  • Correct Answer
  • thermosetting 


  • Polymer Technology problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. __________ is a copolymer.

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

    • Options
    • A. ethyl benzene
    • B. cyclohexane
    • C. ethylene glycol
    • D. DMT
    • Discuss
    • 5. Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800?

    • Options
    • A. 50000
    • B. 51600
    • C. 49200
    • D. 50800
    • Discuss
    • 6. Softening point of high density polythene is about __________ °C.

    • Options
    • A. 85
    • B. 135
    • C. 165
    • D. 205
    • Discuss
    • 7. Collapsible tubes for tooth paste are produced by __________ extrusion.

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

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

    • Options
    • A. rosin
    • B. shellac
    • C. amber
    • D. copal
    • Discuss


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