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 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 aromatics decreases with increase in its molecular weight 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 hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Stabilisation of gasoline (petrol) means Removal of dissolved gases from it Improving its lead susceptibility Increasing its vapour pressure Increasing its oxidation stability Removal of dissolved gases from it Improving its lead susceptibility Increasing its vapour pressure Increasing its oxidation stability ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Products drawn from the top to bottom of the crude oil distillation column has progressively increasing C/H ratio Molecular weight Boiling points All of these C/H ratio Molecular weight Boiling points All of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Higher vapour pressure of gasoline indicates Both A & B Low flash point Neither A nor B High breathing loss Both A & B Low flash point Neither A nor B High breathing loss ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to Improve its oxidation stability Decrease the breathing loss Increase its smoke point None of these Improve its oxidation stability Decrease the breathing loss Increase its smoke point None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Carbon/hydrogen ratio (by weight) is maximum (out of following) for Gasoline Kerosene Heavy fuel oil Light gas oil Gasoline Kerosene Heavy fuel oil Light gas oil ANSWER DOWNLOAD EXAMIANS APP
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