Petroleum Refinery Engineering The most widely used crude topping column in refineries is the __________ column. Bubble-cap Perforated plate Fluidised bed Packed bed Bubble-cap Perforated plate Fluidised bed Packed bed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the undesirable property for a solvent meant for dewaxing of lube oil. Both A & B Neither A nor B High solubility of wax in the solvent Complete miscibility with oil Both A & B Neither A nor B High solubility of wax in the solvent Complete miscibility with oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke point of a good burning kerosene may be around __________ mm. 0-5 100-120 60-75 20-25 0-5 100-120 60-75 20-25 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used for dewaxing of petroleum products are Propane Methyl ethyl ketone (MEK) Both B & C Furfural Propane Methyl ethyl ketone (MEK) Both B & C Furfural ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Both asphalt and wax are produced by __________ base crude oils. Mixed Naphthenic Asphalt Paraffin Mixed Naphthenic Asphalt Paraffin ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Gum formation in stored gasoline is mainly due to the Higher aromatic content Alkylation of unsaturates Oxidation & polymerisation of unsaturates Presence of sulphur Higher aromatic content Alkylation of unsaturates Oxidation & polymerisation of unsaturates Presence of sulphur ANSWER DOWNLOAD EXAMIANS APP
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