Chemical Engineering MCQs

Page No. 336

Vulcanisation of rubber does not increase its__________________?


aSoftness


bOxidation resistance


cWeight & strength


dElasticity & water solubility


View Answer Softness

Phenol formaldehyde is produced by condensation polymerisation. It is also known as_________________?


aTeflon


bBakelite


cPolyester


dNylon-66


View Answer Bakelite

Vulcanisation of rubber does not increase its_________________?


aElasticity


bPlasticity


cDuctility


dNone of these


View Answer Plasticity

_____________ is a thermosetting plastic ?


aPVC


bPolythene


cBakelite


dPolystyrene


View Answer Bakelite

Which of the following is a polymer of Hexamethylene diamine and adipic acid ?


aNylon-6


bNylon-66


cNylon-6, 10


dEpoxy resin


View Answer Nylon-66

Which of the following polymers shows the highest anti-tacking properties ?


aMelamine formaldehyde resin


bPhenolic resin


cEpoxy resin


dAlkyd resin



Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser ?


aEthylene glycol


bStearic acid estors


cTricresyl phosphate


dEsters of phthalic acid


View Answer Ethylene glycol

Polycaprolactam is nothing but __________________?


aOrlon


bNylon-66


cNylon-6


dSaran


View Answer Nylon-6

Poly Vinyl chloride (PVC) is a ________________ material?


aThermoplastic


bThermosetting


cFibrous


dChemically active


View Answer Thermoplastic

_____________ moulding is used for shaping of thermosetting plastics exclusively?


aCompression


bInjection


cTransfer


dExtrusion


View Answer Transfer

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