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 Name the endothermic reaction out of the following: Hydrocracking Catalytic cracking Dehydrogeneration of naphthene to produce aromatic Catalytic polymerisation Hydrocracking Catalytic cracking Dehydrogeneration of naphthene to produce aromatic Catalytic polymerisation 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? High freezing point aviation fuel High viscosity index lube oil None of these Low viscosity index lube oil High freezing point aviation fuel High viscosity index lube oil None of these Low viscosity index lube oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming Uses naphtha as feedstock Does not much affect the molecular weight of the feed All of these Improves the quality & yield of gasoline Uses naphtha as feedstock Does not much affect the molecular weight of the feed All of these Improves the quality & yield of gasoline ANSWER DOWNLOAD EXAMIANS APP