Petroleum Refinery Engineering Which of the following additives improves the cetane number of diesel? Tetra ethyl lead Napthenic acid Amyl nitrate Ethyl mercaptan Tetra ethyl lead Napthenic acid Amyl nitrate Ethyl mercaptan ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the minimum °API gravity of all? Petrol Furnace oil Kerosene Diesel Petrol Furnace oil Kerosene Diesel 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 wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of aromatics decreases with increase in its molecular weight 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 naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of paraffins increases with decrease in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The most widely used crude topping column in refineries is the __________ column. Fluidised bed Packed bed Bubble-cap Perforated plate Fluidised bed Packed bed Bubble-cap Perforated plate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering __________ treatment is done for appreciable improvement in viscosity index of lubricating oil. Clay Alkali Acid Solvent extraction Clay Alkali Acid Solvent extraction ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS