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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