Petroleum Refinery Engineering Waxes present in petroleum products Are not soluble in them Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Viscosity index of a lubricating oil Should be low Is the measure of its flash point None of these Is the measure of variation of viscosity with temperature Should be low Is the measure of its flash point None of these Is the measure of variation of viscosity with temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrofining is the most recent and effective method for the Removal of sulphur Improvement of viscosity index Reduction of breathing loss Improvement of smoke point Removal of sulphur Improvement of viscosity index Reduction of breathing loss Improvement of smoke point ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones. Sulphur decreases Nitrogen decreases None of these Sulphur increases Sulphur decreases Nitrogen decreases None of these Sulphur increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is Diethylene glycol Aqueous solution (10% water) of diethylene glycol Propane Methyl ethyl ketone (MEK) Diethylene glycol Aqueous solution (10% water) of diethylene glycol Propane Methyl ethyl ketone (MEK) ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Percentage of straight run gasoline in a typical crude oil may be around 18 52 38 6 18 52 38 6 ANSWER DOWNLOAD EXAMIANS APP
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