Petroleum Refinery Engineering Mercaptans are added to liquefied petroleum gas (LPG) to Increase its calorific value Reduce its cost Narrow down its explosion limit Assist in checking its leakage from cylinder Increase its calorific value Reduce its cost Narrow down its explosion limit Assist in checking its leakage from cylinder ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The most important property for a jet fuel is its Viscosity Flash point Freezing point Calorific value Viscosity Flash point Freezing point Calorific value ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners? Light diesel oil Tar Low viscosity furnace oil PCM Light diesel oil Tar Low viscosity furnace oil PCM ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Alkylation Causes olefins to combine with iso-paraffins Converts iso-paraffin into olefin Causes olefins to combine with each other Converts olefin into paraffin Causes olefins to combine with iso-paraffins Converts iso-paraffin into olefin Causes olefins to combine with each other Converts olefin into paraffin ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to Increase its smoke point Improve its oxidation stability None of these Decrease the breathing loss Increase its smoke point Improve its oxidation stability None of these Decrease the breathing loss ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration Neither A nor B Less than 90% promotes polymerisation Both A & B More than 98% promotes cracking Neither A nor B Less than 90% promotes polymerisation Both A & B More than 98% promotes cracking ANSWER DOWNLOAD EXAMIANS APP
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