Chemical Engineering MCQs

Page No. 329

Rain coats are made of__________________?


aNeoprene


bPVC


cPolyurethane


dSBR


View Answer PVC

Which of the following is not a natural fiber ?


aSilk


bViscose rayon


cWool


dCotton


View Answer Viscose rayon

Rayon is a ____________ fibre?


aCellulosic


bPolyamide


cPolyester


dNatural


View Answer Cellulosic

The starting material used for the manufacture of caprolactam is________________?


aEthyl benzene


bCyclohexane


cEthylene glycol


dDMT


View Answer Cyclohexane

Size range of polymer molecules varies from __________ meter?


a10-2 to 10-5


b10-4 to 10-7


c10-1 to 10-2


d10-8 to 10-10


View Answer 10-2 to 10-5

Polyhexamethylene adipamide is also known as______________?


aBakelite


bNylon-66


cEpoxy resin


dSilicone rubber


View Answer Nylon-66

Thermoplastic materials___________________?


aDo not soften on application of heat


bAre heavily branched molecules


cAre solvent insoluble


dNone of these


View Answer None of these

Cross linked polymers are__________________?


aThermoplastic


bThermosetting


cEither A. or B.


dFibres only


View Answer Thermosetting

Nylon-66 compared to nylon-6 has __________________?


aLower melting point


bMore abrasion resistant properties


cHigher hardness


dAll A., B. and C.



Unbreakable crockeries are made from ______________ polymers?


aPolystyrene


bMelamine


cPolystyrene


dPolyurethane


View Answer Polystyrene

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