Chemical Engineering MCQs

Page No. 693

Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?


aBleaching powder

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bSlaked lime

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cAlum

✓


dCopper sulphate

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View Answer Alum

The major constituent of black liquor generated during paper manufacture is sodium___________________?


aSulphate

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bCarbonate

✓


cHydroxide

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dBi-carbonate

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View Answer Carbonate

Paper grade bamboo contains about _______________ percent cellulose ?


a5

✓


b20

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c40

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d60

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View Answer 5

Cement setting under water employs a/an _______________ process ?


aHydration

✓


bDecomposition

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cOxidation

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dReduction

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View Answer Hydration

Hydrogenation of vegetable oils is a/an _______________ reaction ?


aEndothermic

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bAutocatalytic

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cExothermic

✓


dHomogenous

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View Answer Exothermic

Oxygen is produced by fractionation of air using _____________ process?


aLinde’s

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bClaude’s

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cEither A. or B.

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dNone of these

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View Answer Either A. or B.

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the _____________ process?


aMechanical

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bSulphate/Kraft

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cSulphite

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dNeutral sulphite semi-chemical

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Synthetic glycerine is produced from___________________?


aToluene

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bPhenol

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cPropylene

✓


dNaphthalene

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View Answer Propylene

Oil produced by solvent extraction________________?


aHas low free fatty acid content

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bIs odourless

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cBoth A. & B.

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dNeither A. nor B.

✓


View Answer Neither A. nor B.

‘Hollander beater’ machine used in the paper manufacturing plant does not accomplish the task of____________________?


aFinal rolling out of paper

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bCutting of fibres

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cHydration of fibres

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dFibrillation of fibre

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