Petroleum Refinery Engineering Crude oil is subjected to vacuum distillation in the last stage, because High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose None of these High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Tetra-ethyl lead is added in gasoline to Reduce the pour point Reduce gum formation Increase its smoke point Increase its octane number Reduce the pour point Reduce gum formation Increase its smoke point Increase its octane number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Aniline point is the Measure of aromatic content of oil Both A & B Neither A nor B Characteristic property of diesel & lubricating oils Measure of aromatic content of oil Both A & B Neither A nor B Characteristic property of diesel & lubricating oils ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? Paraffins Mercaptans Naphthenic acid Aromatics Paraffins Mercaptans Naphthenic acid Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. 1000-1500 250-350 2000-2500 600-750 1000-1500 250-350 2000-2500 600-750 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Isomerisation converts the __________ tot-paraffins. Paraffins Olefins None of these Naphthenes Paraffins Olefins None of these Naphthenes ANSWER DOWNLOAD EXAMIANS APP
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