Petroleum Refinery Engineering Octane number (unleaded) of reformed gasoline may be upto 70 80 90 60 70 80 90 60 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 Suppress coke formation Enhance the octane number of gasoline Increase the yield of light distillates Reduce gum content in gasoline Suppress coke formation Enhance the octane number of gasoline Increase the yield of light distillates Reduce gum content in gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Phenols are added in gasoline to Improve the octane number Reduce its viscosity Increase its pour point Act as an antioxidant Improve the octane number Reduce its viscosity Increase its pour point Act as an antioxidant ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater. Electric immersion Steam coil Pipestill None of these Electric immersion Steam coil Pipestill None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating. 15 40 5 60 15 40 5 60 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is not a sulphur compound present in petroleum ? Sulphones Mercaptans Thiophenes Pyroles Sulphones Mercaptans Thiophenes Pyroles ANSWER DOWNLOAD EXAMIANS APP
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