Petroleum Refinery Engineering Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil Gives higher yield of petrol Lower octane number of petrol Higher gum forming material in petrol Higher sulphur content in the product Gives higher yield of petrol Lower octane number of petrol Higher gum forming material in petrol Higher sulphur content in the product ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Decrease their viscosity Are not soluble in them Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them Can be separated out by distillation Crystallise out at low temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Feed for reforming is generally Naphtha or straight run gasoline Atmospheric gas oil Vacuum gas oil Reduced crude Naphtha or straight run gasoline Atmospheric gas oil Vacuum gas oil Reduced crude ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In case of liquid petrofuels, momentary combustion is observed at its Fire point Preheating temperature corresponding to viscosity of 25 centistokes Flash point Flame temperature Fire point Preheating temperature corresponding to viscosity of 25 centistokes Flash point Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In sweetening process, solutizer agent used with caustic alkali is Phenol Methanol Sodium plumbite Potassium isobutyrate Phenol Methanol Sodium plumbite Potassium isobutyrate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products Decreases Remains same Unpredictable from the data Increases Decreases Remains same Unpredictable from the data Increases ANSWER DOWNLOAD EXAMIANS APP
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