Petroleum Refinery Engineering Paraffin base crude oil as compared to asphalt base crude gives Higher octane number gasoline Higher yield of straight run gasoline Lower viscosity index lube oil Poorer yield of lube oil Higher octane number gasoline Higher yield of straight run gasoline Lower viscosity index lube oil Poorer yield of lube oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Crystallise out at low temperature Decrease their viscosity Can be separated out by distillation Are not soluble in them Crystallise out at low temperature Decrease their viscosity Can be separated out by distillation Are not soluble in them ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the correct statement pertaining to catalytic cracking. Percentage conversion increases with increase in the catalyst to oil ratio All of these With increase in the reactor temperature, gasoline yield decreases for a given conversion With increase in the reactor pressure, octane number of gasoline decreases Percentage conversion increases with increase in the catalyst to oil ratio All of these With increase in the reactor temperature, gasoline yield decreases for a given conversion With increase in the reactor pressure, octane number of gasoline decreases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering 95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C. 2 55 30 -40 2 55 30 -40 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is not a sulphur compound present in petroleum ? Thiophenes Sulphones Mercaptans Pyroles Thiophenes Sulphones Mercaptans Pyroles ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Alkylation Converts iso-paraffin into olefin Converts olefin into paraffin Causes olefins to combine with iso-paraffins Causes olefins to combine with each other Converts iso-paraffin into olefin Converts olefin into paraffin Causes olefins to combine with iso-paraffins Causes olefins to combine with each other ANSWER DOWNLOAD EXAMIANS APP
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