Chemical Engineering MCQs

Page No. 321

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


aAbradability

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bReactivity

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cAgglutinating (binding) properties

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dPorosity

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Buna-S is also called____________________?


aPolyurethane

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bSBR

✓


cTeflon

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dBakelite

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View Answer SBR

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


aTeflon

✓


bBakelite

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cSBR

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dNone of these

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View Answer Teflon

Thermocol (expanded polystyrene) is not used for __________________?


aLow temperature thermal insulation as in refrigerator and air conditioners

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bAcoustic control and ceiling for building

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cHigh temperature thermal insulation in furnaces

✓


dPacking of delicate electronic gadgets

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Most commonly used rubber vulcanisation agent is __________________?


aSulphur

✓


bBromine

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cPlatinum

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dAlumina

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View Answer Sulphur

Liners of bags are usually made of ____________________?


aPolythene

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bPVC

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cPolypropylene

✓


dPolyesters

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View Answer Polypropylene

______________ is an addition polymer ?


aNylon

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bBakelite

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cPolythene

✓


dNone of these

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View Answer Polythene

Which of the following is an elastomer ?


aThiokol

✓


bPhenol formaldehyde

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cUrea formaldehyde

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dPolystyrene

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View Answer Thiokol

Plastic tubes & pipes are generally made by ______________ moulding?


aInjection

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bTransfer

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cExtrusion

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dCompression

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View Answer Extrusion

Diphenylamine is added to rubber to_________________?


aVulcanise it

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bProtect it from deterioration on exposure to air

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cMake it non-inflammable

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dMake it thermosetting

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