Petroleum Refinery Engineering Crude oil is subjected to vacuum distillation in the last stage, because High purity products can be obtained thereby None of these High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose Lighter/low boiling products are prone to thermal decomposition High purity products can be obtained thereby None of these High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose Lighter/low boiling products are prone to thermal decomposition ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Crude oil is transported inland from oil field to refineries, mainly by the Road tankers Rail tankers Underground pipelines None of these Road tankers Rail tankers Underground pipelines None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Good quality kerosene should have Low paraffins content Low smoke point High smoke point High aromatics content Low paraffins content Low smoke point High smoke point High aromatics content ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Paraffin base crude oil as compared to asphalt base crude gives Poorer yield of lube oil Higher octane number gasoline Lower viscosity index lube oil Higher yield of straight run gasoline Poorer yield of lube oil Higher octane number gasoline Lower viscosity index lube oil Higher yield of straight run gasoline 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 Obviate catalyst poisoning Hydrogenate the feed stock Maintain the reaction temperature Sustain the reactor pressure Obviate catalyst poisoning Hydrogenate the feed stock Maintain the reaction temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The general formula of naphthenes is CnH2n + 2 CnH2n - 6 (where, n ≥ 6) Same as that for olefins i.e. CnH2n CnHn - 4 CnH2n + 2 CnH2n - 6 (where, n ≥ 6) Same as that for olefins i.e. CnH2n CnHn - 4 ANSWER DOWNLOAD EXAMIANS APP
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