Chemical Engineering MCQs

Page No. 511

Operating condition in the electrical dehydrators for crude oil is about____________________?


a6.5 kgf/Cm2 & 95°C


b1 atm. & 110 °C


c20 kgf/cm2 & 110°C


d50 atm. and 150°C


View Answer 6.5 kgf/Cm2 & 95°C

Which of the following has the maximum °API gravity of all ?


aDiesel


bKerosene


cPetrol


dFurnace oil


View Answer Petrol

Deoiling is the process of removal of oil from wax. It is done by the _______________ process?


aSolvent extraction


bSweating


cResettling


dAll A., B. & C.


View Answer All A., B. & C.

In the atmospheric pressure crude distillation, the content of _____________ from lighter fraction to heavier ones?


aSulphur increases


bSulphur decreases


cNitrogen decreases


dNone of these


View Answer Sulphur increases

Crude petroleum oil is a _______________ fuel?


aPrimary


bFossil


cBoth A. & B.


dSecondary


View Answer Both A. & B.

Specific gravity of a petroleum product gives an indication of its _________________?


aDegree of refinement


bHydrocarbon content type (aromatic or paraffinic)


cEase of atomisation


dSulphur content


View Answer Sulphur content

Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?


aPropane & phenol-cresol mixture


bMethyl ethyl ketone & glycol


cPhenol & furfural


dPropane & liquid sulphur dioxide



Name the endothermic reaction out of the following ?


aCatalytic cracking


bHydrocracking


cDehydrogeneration of Naphthene to produce aromatic


dCatalytic polymerisation



Operating temperature and pressure in catalytic reforming is about_____________?


a1-5 Kgf/cm2 & 200°C


b15-45 Kgf/cm2 & 450-550°C


c50 – 75 kgf/cm2 & 600 – 800°C


d5-10 kgf/cm2 & 150 – 250°C



Which of the following has the lowest viscosity (at a given temperature) of all ?


aNaphtha


bKerosene


cDiesel


dLube oil


View Answer Naphtha

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