Petroleum Refinery Engineering Viscosity index of a lubricating oil Is the measure of its flash point None of these Should be low Is the measure of variation of viscosity with temperature Is the measure of its flash point None of these Should be low Is the measure of variation of viscosity with temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The pressure (kg/cm² ) and temperature (°C) maintained in electrical desalters for crude oil are respectively 1 and 200 10 and 300 10 and 120 50 and 250 1 and 200 10 and 300 10 and 120 50 and 250 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Flash point of an oil gives an idea of the Amount of low boiling fraction present All of these Nature of boiling point diagram of the system Explosion hazards Amount of low boiling fraction present All of these Nature of boiling point diagram of the system Explosion hazards ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Road grade bitumen is produced from vacuum residue by its Steam reforming Hydrogenation Aeration Pyrolysis Steam reforming Hydrogenation Aeration Pyrolysis ANSWER DOWNLOAD EXAMIANS APP
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