Chemical Engineering MCQs

Page No. 693

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


aBleaching powder


bSlaked lime


cAlum


dCopper sulphate


View Answer Alum

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


aSulphate


bCarbonate


cHydroxide


dBi-carbonate


View Answer Carbonate

Paper grade bamboo contains about _______________ percent cellulose ?


a5


b20


c40


d60


View Answer 5

Cement setting under water employs a/an _______________ process ?


aHydration


bDecomposition


cOxidation


dReduction


View Answer Hydration

Hydrogenation of vegetable oils is a/an _______________ reaction ?


aEndothermic


bAutocatalytic


cExothermic


dHomogenous


View Answer Exothermic

Oxygen is produced by fractionation of air using _____________ process?


aLinde’s


bClaude’s


cEither A. or B.


dNone of these


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


bSulphate/Kraft


cSulphite


dNeutral sulphite semi-chemical



Synthetic glycerine is produced from___________________?


aToluene


bPhenol


cPropylene


dNaphthalene


View Answer Propylene

Oil produced by solvent extraction________________?


aHas low free fatty acid content


bIs odourless


cBoth A. & B.


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


bCutting of fibres


cHydration of fibres


dFibrillation of fibre



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