Petroleum Refinery Engineering Solvent used in duo-sol extraction for lube oil upgradation is a mixture of Propane & phenol-cresol mixture Methyl ethyl ketone & glycol Propane & liquid sulphur dioxide Phenol & furfural Propane & phenol-cresol mixture Methyl ethyl ketone & glycol Propane & liquid sulphur dioxide Phenol & furfural ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to None of these Improve its oxidation stability Decrease the breathing loss Increase its smoke point None of these Improve its oxidation stability Decrease the breathing loss Increase its smoke point ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is not an important property of fuel oil/furnace oil? Viscosity Flash point Aniline point Sulphur content Viscosity Flash point Aniline point Sulphur content ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen Neither A nor B Enhances the desulphurisation process Both A & B Minimises coke formation Neither A nor B Enhances the desulphurisation process Both A & B Minimises coke formation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Electrical desalting of crude oil removes the __________ impurities. Neither A nor B Both A & B Oleophobic Oleophilic Neither A nor B Both A & B Oleophobic Oleophilic ANSWER DOWNLOAD EXAMIANS APP
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