Petroleum Refinery Engineering Octane number (unleaded) of gasoline produced by isomerisation of butane may be about 55 70 45 90 55 70 45 90 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Natural gasoline is produced By natural gas stripping From oil wells In oil refineries None of these By natural gas stripping From oil wells In oil refineries None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Aniline point is the temperature at which Equal weight of diesel & the aniline are completely miscible Aniline vaporises Equal weight of aniline & the test sample are completely miscible Equal volume of aniline & the test sample are completely miscible Equal weight of diesel & the aniline are completely miscible Aniline vaporises Equal weight of aniline & the test sample are completely miscible Equal volume of aniline & the test sample are completely miscible ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration More than 98% promotes cracking Neither A nor B Both A & B Less than 90% promotes polymerisation More than 98% promotes cracking Neither A nor B Both A & B Less than 90% promotes polymerisation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Both asphalt and wax are produced by __________ base crude oils. Paraffin Naphthenic Asphalt Mixed Paraffin Naphthenic Asphalt Mixed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline ANSWER DOWNLOAD EXAMIANS APP
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