Chemical Engineering MCQs

Page No. 321

Caking index of a coal is a measure of its _______________________?


aAbradability


bReactivity


cAgglutinating (binding) properties


dPorosity



Buna-S is also called____________________?


aPolyurethane


bSBR


cTeflon


dBakelite


View Answer SBR

Which of the following is not a polymer of two monomers ?


aTeflon


bBakelite


cSBR


dNone of these


View Answer Teflon

Thermocol (expanded polystyrene) is not used for __________________?


aLow temperature thermal insulation as in refrigerator and air conditioners


bAcoustic control and ceiling for building


cHigh temperature thermal insulation in furnaces


dPacking of delicate electronic gadgets



Most commonly used rubber vulcanisation agent is __________________?


aSulphur


bBromine


cPlatinum


dAlumina


View Answer Sulphur

Liners of bags are usually made of ____________________?


aPolythene


bPVC


cPolypropylene


dPolyesters


View Answer Polypropylene

______________ is an addition polymer ?


aNylon


bBakelite


cPolythene


dNone of these


View Answer Polythene

Which of the following is an elastomer ?


aThiokol


bPhenol formaldehyde


cUrea formaldehyde


dPolystyrene


View Answer Thiokol

Plastic tubes & pipes are generally made by ______________ moulding?


aInjection


bTransfer


cExtrusion


dCompression


View Answer Extrusion

Diphenylamine is added to rubber to_________________?


aVulcanise it


bProtect it from deterioration on exposure to air


cMake it non-inflammable


dMake it thermosetting



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