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 naphthenes decreases with its increasing molecular weight & also on addition of double bond 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 hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of aromatics decreases with increase in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Viscosity index of a lubricating oil Is the measure of variation of viscosity with temperature None of these Is the measure of its flash point Should be low Is the measure of variation of viscosity with temperature None of these Is the measure of its flash point Should be low ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater. None of these Pipestill Steam coil Electric immersion None of these Pipestill Steam coil Electric immersion ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering A good lubricant should have high None of these Volatility Pour point Viscosity index None of these Volatility Pour point Viscosity index ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel). 35 3 70 0.03 35 3 70 0.03 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pyrolysis of kerosene or natural gasoline is done to produce mainly the Lighter paraffins Stabilised gasoline Olefins and aromatics Diesel Lighter paraffins Stabilised gasoline Olefins and aromatics Diesel ANSWER DOWNLOAD EXAMIANS APP
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