logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Polymer Technology Comments

  • Question
  • Polymethyl methacrylate, which is an acrylic resin, is also called


  • Options
  • A. thiokol
  • B. plexiglass or lucite
  • C. dacron
  • D. teflon

  • Correct Answer
  • plexiglass or lucite 


  • Polymer Technology problems


    Search Results


    • 1. __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.

    • Options
    • A. Fibrous
    • B. Leathery
    • C. Rubbery
    • D. Hard
    • Discuss
    • 2. Ion exchange resins are made of

    • Options
    • A. lucite
    • B. sulphonated bakelite
    • C. polystyrene
    • D. teflon
    • Discuss
    • 3. Chromite refractories are used in

    • Options
    • A. bottom of soaking pits.
    • B. between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other.
    • C. both (a) & (b)
    • D. neither (a) and (b)
    • Discuss
    • 4. Fireclay bricks are used in the

    • Options
    • A. furnaces allowed to cool frequently
    • B. flues
    • C. chimney linings
    • D. all (a), (b) and (c)
    • Discuss
    • 5. Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory

    • Options
    • A. mortars
    • B. cements
    • C. castables
    • D. none of these
    • Discuss
    • 6. Perspex can be used as a substitute of glass. Its monomer is

    • Options
    • A. methyl methacrylate
    • B. DMT
    • C. butadiene
    • D. tetrafluroethylene
    • Discuss
    • 7. Low density polythene as compared to high density polythene is

    • Options
    • A. harder
    • B. tougher
    • C. chemically inert
    • D. more flexible
    • Discuss
    • 8. Which of the following is stretched into fibres?

    • Options
    • A. Saturated polyester
    • B. Unsaturated polyester
    • C. Isoprene
    • D. Bakelite
    • Discuss
    • 9. 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
    • 10. 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.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment