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 Reduce gum content in gasoline Enhance the octane number of gasoline Suppress coke formation Increase the yield of light distillates Reduce gum content in gasoline Enhance the octane number of gasoline Suppress coke formation Increase the yield of light distillates ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Lane and Garton classification of petroleum is based on its Viscosity Optical properties Composition Specific gravity Viscosity Optical properties Composition Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used in duo-sol extraction for lube oil upgradation is a mixture of Propane & liquid sulphur dioxide Phenol & furfural Propane & phenol-cresol mixture Methyl ethyl ketone & glycol Propane & liquid sulphur dioxide Phenol & furfural Propane & phenol-cresol mixture Methyl ethyl ketone & glycol ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is not a sulphur compound present in petroleum ? Pyroles Sulphones Thiophenes Mercaptans Pyroles Sulphones Thiophenes Mercaptans ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest octane number? Aromatics I-paraffins Naphthenes Olefins Aromatics I-paraffins Naphthenes Olefins ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke volatility index is equal to smoke point plus 10 mm. approximately 0.84 x (% distilled at 204°C) 5 mm 0.42 x(% distilled at 204°C) 10 mm. approximately 0.84 x (% distilled at 204°C) 5 mm 0.42 x(% distilled at 204°C) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS