Chemical Engineering MCQs

Page No. 511

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


a6.5 kgf/Cm2 & 95°C

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b1 atm. & 110 °C

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c20 kgf/cm2 & 110°C

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d50 atm. and 150°C

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View Answer 6.5 kgf/Cm2 & 95°C

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


aDiesel

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bKerosene

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cPetrol

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dFurnace oil

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View Answer Petrol

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


aSolvent extraction

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bSweating

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cResettling

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dAll A., B. & C.

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View Answer All A., B. & C.

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


aSulphur increases

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bSulphur decreases

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cNitrogen decreases

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dNone of these

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View Answer Sulphur increases

Crude petroleum oil is a _______________ fuel?


aPrimary

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bFossil

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cBoth A. & B.

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dSecondary

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View Answer Both A. & B.

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


aDegree of refinement

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bHydrocarbon content type (aromatic or paraffinic)

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cEase of atomisation

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dSulphur content

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View Answer Sulphur content

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


aPropane & phenol-cresol mixture

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bMethyl ethyl ketone & glycol

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cPhenol & furfural

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dPropane & liquid sulphur dioxide

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Name the endothermic reaction out of the following ?


aCatalytic cracking

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bHydrocracking

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cDehydrogeneration of Naphthene to produce aromatic

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dCatalytic polymerisation

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Operating temperature and pressure in catalytic reforming is about_____________?


a1-5 Kgf/cm2 & 200°C

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b15-45 Kgf/cm2 & 450-550°C

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c50 – 75 kgf/cm2 & 600 – 800°C

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d5-10 kgf/cm2 & 150 – 250°C

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


aNaphtha

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bKerosene

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cDiesel

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dLube oil

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View Answer Naphtha

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