Petroleum Refinery Engineering Diesel index.(an alternative index for expressing the quality of diesel) is All of these Equal to cetane number plus 3 Not related to aniline point Determined by using a test engine All of these Equal to cetane number plus 3 Not related to aniline point Determined by using a test engine ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration Less than 90% promotes polymerisation Both A & B Neither A nor B More than 98% promotes cracking Less than 90% promotes polymerisation Both A & B Neither A nor B More than 98% promotes cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to Sustain the reactor pressure Hydrogenate the feed stock Obviate catalyst poisoning Maintain the reaction temperature Sustain the reactor pressure Hydrogenate the feed stock Obviate catalyst poisoning Maintain the reaction temperature 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 Increase in the specific gravity of petroleum products indicates Decrease in paraffin content Increase in thermal energy per unit weight Increase in aromatic content Higher H/C ratio Decrease in paraffin content Increase in thermal energy per unit weight Increase in aromatic content Higher H/C ratio ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Aniline point is the Characteristic property of diesel & lubricating oils Neither A nor B Measure of aromatic content of oil Both A & B Characteristic property of diesel & lubricating oils Neither A nor B Measure of aromatic content of oil Both A & B ANSWER DOWNLOAD EXAMIANS APP
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