Petroleum Refinery Engineering Waxes present in petroleum products Are not soluble in them Decrease their viscosity Crystallise out at low temperature Can be separated out by distillation Are not soluble in them Decrease their viscosity Crystallise out at low temperature Can be separated out by distillation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrofining is the most recent and effective method for the Reduction of breathing loss Improvement of smoke point Removal of sulphur Improvement of viscosity index Reduction of breathing loss Improvement of smoke point Removal of sulphur Improvement of viscosity index ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. 600-750 2000-2500 1000-1500 250-350 600-750 2000-2500 1000-1500 250-350 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Carbon percentage (by weight) in crude petroleum may be about 95 85 65 75 95 85 65 75 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones. Sulphur increases Nitrogen decreases None of these Sulphur decreases Sulphur increases Nitrogen decreases None of these Sulphur decreases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering 'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts. Distillation Desulphurisation Steam reforming None of these Distillation Desulphurisation Steam reforming None of these ANSWER DOWNLOAD EXAMIANS APP
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