Petroleum Refinery Engineering Mercaptans are added to liquefied petroleum gas (LPG) to Narrow down its explosion limit Assist in checking its leakage from cylinder Reduce its cost Increase its calorific value Narrow down its explosion limit Assist in checking its leakage from cylinder Reduce its cost Increase its calorific value ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solution used in Doctor's treatment for the removal of mercaptans is Potassium isobutyrate Sodium hydroxide Sodium plumbite Cupric chloride Potassium isobutyrate Sodium hydroxide Sodium plumbite Cupric chloride ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum Constitutes mainly of olefins Is optically active Does not contain asphalt Does not contain aromatics Constitutes mainly of olefins Is optically active Does not contain asphalt Does not contain aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Crude oil is subjected to vacuum distillation in the last stage, because None of these High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition None of these High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C. 50 140 70 90 50 140 70 90 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is a naphthene? Butene Cyclohexane Acetylene Butadiene Butene Cyclohexane Acetylene Butadiene ANSWER DOWNLOAD EXAMIANS APP
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