Petroleum Refinery Engineering Which of the following constituents present in petroleum is responsible for ash formation? Oxygen compounds Sulphur compounds Nitrogen compounds Organometallic compounds Oxygen compounds Sulphur compounds Nitrogen compounds Organometallic compounds ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Electrical desalting of crude oil removes the __________ impurities. Both A & B Neither A nor B Oleophilic Oleophobic Both A & B Neither A nor B Oleophilic Oleophobic ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Visbreaking Is carried out at atmospheric pressure Uses natural gas as feed Produces fuel oil of lower viscosity Produces gasoline only Is carried out at atmospheric pressure Uses natural gas as feed Produces fuel oil of lower viscosity Produces gasoline only ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest viscosity of all (at a given temperature)? Petrol Light diesel oil Naphtha Fuel oil Petrol Light diesel oil Naphtha Fuel oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm. 25 5 100 10 25 5 100 10 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 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 Suppress coke formation ANSWER DOWNLOAD EXAMIANS APP
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