Chemical Engineering MCQs

Page No. 332

Nylon-6 is a_________________?


aPolyamide

✓


bThermosetting resin

✖


cPolyester

✖


dNone of these

✖


View Answer Polyamide

Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically_________________?


aPolymethyl methacrylate (PMMA)

✓


bPolytetrafluroethylene (PTFE)

✖


cPolycarbonates

✖


dPhenolic resins

✖



Rexine (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten_______________?


aTeflon

✖


bBakelite

✖


cSBR

✖


dPVC

✓


View Answer PVC

Commercial production of polypropylene employs _____________ polymerisation?


aEmulsion

✖


bSuspension

✖


cSolution

✓


dBulk

✖


View Answer Solution

Nylon-66 is a polyamide of __________________?


aHexamethylene diamine and adipic acid

✓


bAdipic acid and methyl amine

✖


cVinyl chloride and formaldehyde

✖


dNone of these

✖



The only natural thermoplastic resin, which is a product of animal life is ____________________?


aRosin

✖


bShellac

✓


cAmber

✖


dCopal

✖


View Answer Shellac

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is __________________?


aNylon-66

✖


bTeflon

✓


cPolyester

✖


dPolyester

✖


View Answer Teflon

Gutta percha rubber is_________________?


aSoft & tacky at room temperature

✖


bAn isomer of natural rubber

✓


cA thermosetting resin

✖


dRecovered by coagulation of rubber latex

✖



Which of the following is generally not drawn into fiber ?


aPolyamide

✖


bUnsaturated polyesters

✓


cSaturated polyesters

✖


dPolyacrylonitrile

✖



Cellulose content in bamboo fibre is about ______________ percent?


a10

✖


b20

✖


c50

✓


d85

✖


View Answer 50

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