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 Reduce gum content in gasoline Suppress coke formation Increase the yield of light distillates Enhance the octane number of gasoline Reduce gum content in gasoline Suppress coke formation Increase the yield of light distillates ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. Activated clay Fuller's earth Bauxite All of these Activated clay Fuller's earth Bauxite All of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Furfural solvent extraction is used for upgrading (by dissolving aromatics) Wax Lubricating oils Cracking feedstock Naphtha Wax Lubricating oils Cracking feedstock Naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solution used in Doctor's treatment for the removal of mercaptans is Potassium isobutyrate Sodium hydroxide Sodium plumbite Cupric chloride Potassium isobutyrate Sodium hydroxide Sodium plumbite Cupric chloride ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Diesel used in naval applications has a minimum cetane number of 25 35 65 45 25 35 65 45 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Good quality kerosene should have High aromatics content Low paraffins content Low smoke point High smoke point High aromatics content Low paraffins content Low smoke point High smoke point ANSWER DOWNLOAD EXAMIANS APP
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