Chemical Engineering MCQs

Page No. 519

Fuel oil is subjected to visbreaking to reduce its_______________?


aPour point


bViscosity


cPressure drop on pumping


dAll A., B. and C.


View Answer All A., B. and C.

Both asphalt and wax are produced by ______________ base crude oils?


aNaphthenic


bAsphalt


cParaffin


dMixed


View Answer Mixed

______________ converts n-paraffins to i-paraffins ?


aAlkylation


bPolymerisation


cIsomerisation


dNone of these


View Answer Isomerisation

A petroleum well is called ‘dry’, if it contains ____________________?


aVery little oil


bNo natural gas


cOnly natural gas


dAll A., B. and C.


View Answer Only natural gas

In solutizer sweetening process, solutizer solution used is_______________?


aMethanol in Unisol process


bNaphthenic acid in Mercapsol process


cBoth A. and B.


dNeither A. nor B.


View Answer Both A. and B.

Solvent used in the deasphalting process is ______________________?


aFurfural


bPhenol


cPropane


dHexane


View Answer Propane

Cetane number of high speed diesel must be ≥_________________?


a30


b45


c75


d95


View Answer 45

Boiling range of motor gasoline is an indication of the ___________________?


aCase of starting


bRate of acceleration


cVapour locking tendency


dAll A., B. and C.


View Answer Rate of acceleration

Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?


aNaphtha


bLubricating oils


cWax


dCracking feedstock


View Answer Lubricating oils

Which of the following has the highest octane number ?


aAromatics


bi-paraffins


cNaphthenes


dOlefins


View Answer Aromatics

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