Petroleum Refinery Engineering Waxes present in petroleum products Crystallise out at low temperature Are not soluble in them Decrease their viscosity Can be separated out by distillation Crystallise out at low temperature Are not soluble in them Decrease their viscosity Can be separated out by distillation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Highest quality bitumen is produced from the __________ crude oil. Naphthenic Paraffinic Intermediate Mixed Naphthenic Paraffinic Intermediate Mixed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Catalyst used in the catalytic polymerisation is Vanadium pentaoxide Aluminium chloride Nickel Phosphoric acid on kieselghur Vanadium pentaoxide Aluminium chloride Nickel Phosphoric acid on kieselghur 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 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 Enhance the octane number of gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene. 100 500 1 20 100 500 1 20 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used in Edeleanu process is Liquid SO₂ Furfural Phenol Propane Liquid SO₂ Furfural Phenol Propane ANSWER DOWNLOAD EXAMIANS APP
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