Petroleum Refinery Engineering Pick out the undesirable property for a solvent meant for dewaxing of lube oil. Neither A nor B Complete miscibility with oil Both A & B High solubility of wax in the solvent Neither A nor B Complete miscibility with oil Both A & B High solubility of wax in the solvent 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 Discoloration Gum formation Coking Thermal cracking Discoloration Gum formation Coking Thermal cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming All of these Uses naphtha as feedstock Improves the quality & yield of gasoline Does not much affect the molecular weight of the feed All of these Uses naphtha as feedstock Improves the quality & yield of gasoline Does not much affect the molecular weight of the feed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its Neither A nor B Aromatics content Both A & B Molecular weight Neither A nor B Aromatics content Both A & B Molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following additives improves the cetane number of diesel? Ethyl mercaptan Tetra ethyl lead Napthenic acid Amyl nitrate Ethyl mercaptan Tetra ethyl lead Napthenic acid Amyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is almost absent in crude petroleum? Olefins Cycloparaffins Naphthenes Mercaptans Olefins Cycloparaffins Naphthenes Mercaptans ANSWER DOWNLOAD EXAMIANS APP
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