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  • Question
  • Viscosity of a polymer solution or melt


  • Options
  • A. decreases with increase in molecular weight.
  • B. decreases with increase in temperature.
  • C. increases with increase in temperature.
  • D. does not vary with temperature rise.

  • Correct Answer
  • increases with increase in temperature. 


  • Polymer Technology problems


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    • 1. Pick out the correct statement.

    • Options
    • A. Plastics are good conductors of heat and electricity.
    • B. All the polymers are highly crystalline in nature
    • C. Polymers can be vaporised by heating to a very high temperature.
    • D. The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation.
    • Discuss
    • 2. Which of the following is stretched into fibres?

    • Options
    • A. Saturated polyester
    • B. Unsaturated polyester
    • C. Isoprene
    • D. Bakelite
    • Discuss
    • 3. Low density polythene as compared to high density polythene is

    • Options
    • A. harder
    • B. tougher
    • C. chemically inert
    • D. more flexible
    • Discuss
    • 4. Perspex can be used as a substitute of glass. Its monomer is

    • Options
    • A. methyl methacrylate
    • B. DMT
    • C. butadiene
    • D. tetrafluroethylene
    • Discuss
    • 5. Polymethyl methacrylate, which is an acrylic resin, is also called

    • Options
    • A. thiokol
    • B. plexiglass or lucite
    • C. dacron
    • D. teflon
    • Discuss
    • 6. __________ is an addition polymer

    • Options
    • A. Nylon
    • B. Bakelite
    • C. Polythene
    • D. none of these
    • Discuss
    • 7. Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are

    • Options
    • A. 5°C and 1 kgf/cm2.
    • B. - 20°C and 1 kgf/cm2.
    • C. 0°C and 1 kgf/cm2.
    • D. 0°C and 3 kgf/cm2.
    • Discuss
    • 8. Nylon 6 as compared to nylon 6, 6 has lower

    • Options
    • A. abrasion resistance.
    • B. thermal stability.
    • C. adhesion to rubber.
    • D. hardness.
    • Discuss
    • 9. Which of the following is not a polymer of two monomers?

    • Options
    • A. Teflon
    • B. Bakelite
    • C. SBR
    • D. None of these
    • Discuss
    • 10. Which of the following is not a polyolefin?

    • Options
    • A. Polystyrene
    • B. Polypropylene
    • C. Neoprene
    • D. None of these
    • Discuss


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