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 aromatics decreases with increase in its molecular weight Smoking tendency of paraffins increases with decrease 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 aromatics decreases with increase in its molecular weight Smoking tendency of paraffins increases with decrease in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Name the endothermic reaction out of the following: Dehydrogeneration of naphthene to produce aromatic Catalytic polymerisation Hydrocracking Catalytic cracking Dehydrogeneration of naphthene to produce aromatic Catalytic polymerisation Hydrocracking Catalytic cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Clay treatment of petroleum products Desulphurise straight run gasoline & kerosene Adsorb arsenic from feedstock to catalytic reforming All of these Decolorises & stabilises cracked gasoline Desulphurise straight run gasoline & kerosene Adsorb arsenic from feedstock to catalytic reforming All of these Decolorises & stabilises cracked gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which one is preferred for aircraft engine? Low viscosity index lube oil None of these High viscosity index lube oil High freezing point aviation fuel Low viscosity index lube oil None of these High viscosity index lube oil High freezing point aviation fuel ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming Does not much affect the molecular weight of the feed Improves the quality & yield of gasoline All of these Uses naphtha as feedstock Does not much affect the molecular weight of the feed Improves the quality & yield of gasoline All of these Uses naphtha as feedstock ANSWER DOWNLOAD EXAMIANS APP
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