Chemical Engineering MCQs

Page No. 323

Contact lenses for eyes are made of Perspex, which is nothing but_______________?


apoly-methyl-methacrylate


bPolystyrene


cUnsaturated polyester


dPolypropylene



Which of the following is not a polyolefin ?


aPolystyrene


bPolypropylene


cNeoprene


dNone of these


View Answer Neoprene

Vulcanisation of raw rubber makes it__________________?


aSoft


bLess elastic


cPlastic


dTacky


View Answer Less elastic

Poly-methyl-methacrylate, which is an acrylic resin, is also called ___________________?


aThiokol


bPlexiglass or Lucite


cDacron


dTeflon


View Answer Plexiglass or Lucite

Alkyd resin cannot be used for making_________________?


aPlasticiser


bPaint & varnish


cFibers


dFilm forming materials


View Answer Fibers

Buna-N is also called__________________?


aButyl rubber


bNitrile rubber


cNeoprene


dThiokol


View Answer Nitrile rubber

Molecular weight of polymers are in the range of__________________?


a10 to 103


b102-107


c107-109


d109-1011


View Answer 102-107

Nitrile rubber is produced by the polymerisation of_________________?


aAcrylonitrile & butadiene


bAcrylonitrile & styrene


cIsobutylene & isoprene


dNone of these



Epoxy resin is____________________?


aNot used for surface coating


bA good abrasive


cAn elastomer


dA polyester


View Answer A good abrasive

Lavatory cisterns are normally made of ________________?


aExpanded polystyrene


bSaturated polyester


cPerspex


dPVC


View Answer Expanded polystyrene

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