Petroleum Refinery Engineering Crude topping column operates at __________ pressure. 10 atm Vacuum 3 atm Atmospheric 10 atm Vacuum 3 atm Atmospheric ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which one is preferred for aircraft engine? Low viscosity index lube oil High freezing point aviation fuel None of these High viscosity index lube oil Low viscosity index lube oil High freezing point aviation fuel None of these High viscosity index lube oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has All of these High pour point and low smoke point High self-ingnition temperature Low viscosity index All of these High pour point and low smoke point High self-ingnition temperature Low viscosity index ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Catalyst used in alkylation process is Silica gel Nickel Alumina Sulphuric acid Silica gel Nickel Alumina Sulphuric acid 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
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