Chemical Engineering MCQs

Page No. 326

The major component of acrylic fibers is__________________?


aPolyamides

✖


bPolyolefins

✖


cPolyacrylonitrile

✓


dPolyesters

✖


View Answer Polyacrylonitrile

Zeigler – Natta catalyst (AlR3 – AlCl3) is used in the polymerisation of_________________?


aVinyl acetate

✖


bVinyl chloride

✖


cPropylene

✓


dStyrene

✖


View Answer Propylene

______________ fibres are made of polyamides?


aDacron

✖


bNylon

✓


cNylon

✖


dOrion

✖


View Answer Nylon

________________ is produced by polymerisation of chloroprene?


aThiokol (a polysulphide rubber)

✖


bButyl rubber

✖


cNeoprene

✓


dPolyurethane rubber

✖


View Answer Neoprene

Thiokol is nothing but____________________?


aPolysulphide rubber

✓


bPolyamide fibre

✖


cEngineering plastic

✖


dExpanded polystyrene

✖


View Answer Polysulphide rubber

Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?


aGlycerol

✖


bNitro cellulose

✖


cCamphor

✓


dNone of these

✖


View Answer Camphor

Neoprene is a___________________?


aMonomer

✖


bSynthetic rubber

✓


cPolyester

✖


dNone of these

✖


View Answer Synthetic rubber

Polymerisation of poly functional monomers produces polymers having_________________?


aGood mechanical strength

✓


bLow viscosity

✖


cLow melting point

✖


dNone of these

✖



β – glucose is the monomer of__________________?


aCellulose

✓


bStarch

✖


cProtein

✖


dNone of these

✖


View Answer Cellulose

____________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR?


aPercent elongation

✖


bResilience

✓


cFreezing point

✖


dStrength

✖


View Answer Resilience

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