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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