Petroleum Refinery Engineering During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water. Decreases Remains unchanged Decreases linearly Increases Decreases Remains unchanged Decreases linearly Increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute). 43961 30-80 350-400 150-250 43961 30-80 350-400 150-250 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The average boiling point of aviation turbine fuel is closest to that of Diesel Lubricating oils Kerosene LPG Diesel Lubricating oils Kerosene LPG ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In case of liquid petrofuels, momentary combustion is observed at its Flash point Flame temperature Preheating temperature corresponding to viscosity of 25 centistokes Fire point Flash point Flame temperature Preheating temperature corresponding to viscosity of 25 centistokes Fire point ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Asphalts are Readily oxidisable and form carbonaceous sludge All of these . Low molecular weight & low boiling point compounds present in petroleum Desirable in catalytic cracking feedstock, because they produce coke Readily oxidisable and form carbonaceous sludge All of these . Low molecular weight & low boiling point compounds present in petroleum Desirable in catalytic cracking feedstock, because they produce coke ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. 1 to 5 30 to 80 250 to 350 450 to 500 1 to 5 30 to 80 250 to 350 450 to 500 ANSWER DOWNLOAD EXAMIANS APP
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