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 Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of Coking Thermal cracking Discoloration Gum formation Coking Thermal cracking Discoloration Gum formation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The catalytic cracking of heavier petroleum fraction is done to produce mainly Asphalt Gasoline Tar Diesel oil Asphalt Gasoline Tar Diesel oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke point of kerosene expresses its Lamp wick wetting characteristics Aromatic content directly Luminosity characteristics Burning characteristics Lamp wick wetting characteristics Aromatic content directly Luminosity characteristics Burning characteristics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Carbon percentage (by weight) in crude petroleum may be about 95 85 65 75 95 85 65 75 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Name the endothermic reaction out of the following: Dehydrogeneration of naphthene to produce aromatic Catalytic cracking Catalytic polymerisation Hydrocracking Dehydrogeneration of naphthene to produce aromatic Catalytic cracking Catalytic polymerisation Hydrocracking ANSWER DOWNLOAD EXAMIANS APP
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