Petroleum Refinery Engineering Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. 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 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 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Increase in the specific gravity of petroleum products indicates Increase in aromatic content Higher H/C ratio Increase in thermal energy per unit weight Decrease in paraffin content Increase in aromatic content Higher H/C ratio Increase in thermal energy per unit weight Decrease in paraffin content ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke volatility index is equal to smoke point plus 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) 10 mm. approximately 0.84 x (% distilled at 204°C) 5 mm ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering A petroleum well is called 'dry', if it contains Very little oil All of these No natural gas Only natural gas Very little oil All of these No natural gas Only natural gas ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Crude topping column operates at __________ pressure. 3 atm 10 atm Atmospheric Vacuum 3 atm 10 atm Atmospheric Vacuum ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following gasolines (unleaded) has the least octane number? Polymer gasoline Catalytically reformed gasoline Catalytically cracked gasoline Straight run gasoline Polymer gasoline Catalytically reformed gasoline Catalytically cracked gasoline Straight run gasoline ANSWER DOWNLOAD EXAMIANS APP