Petroleum Refinery Engineering Phenols are added in gasoline to Increase its pour point Reduce its viscosity Improve the octane number Act as an antioxidant Increase its pour point Reduce its viscosity Improve the octane number Act as an antioxidant 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. 600-750 1000-1500 250-350 2000-2500 600-750 1000-1500 250-350 2000-2500 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest gum forming tendency in gosoline? Aromatics Diolefins Paraffins Naphthenes Aromatics Diolefins Paraffins Naphthenes ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm² is maintained during cracking mainly to Increase the yield of light distillates Suppress coke formation Enhance the octane number of gasoline Reduce gum content in gasoline Increase the yield of light distillates Suppress coke formation Enhance the octane number of gasoline Reduce gum content in gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum coke is used mainly in the Manufacture of carbon electrode Blast furnace for reduction of iron ore Sugar refining Discoloration of yellow glycerine Manufacture of carbon electrode Blast furnace for reduction of iron ore Sugar refining Discoloration of yellow glycerine ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Molecular weight of crude oil is in the range of 100-120 600-850 450-550 230-250 100-120 600-850 450-550 230-250 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS