Petroleum Refinery Engineering Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is More than 100 Less than 25 Between 50 and 100 Round about 100 More than 100 Less than 25 Between 50 and 100 Round about 100 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Removal of light fractions from crude oil is called its Visbreaking Sweetening Stabilisation Dehydration Visbreaking Sweetening Stabilisation Dehydration ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Isomerisation converts the __________ tot-paraffins. Paraffins Naphthenes None of these Olefins Paraffins Naphthenes None of these Olefins ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering __________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation. Sodium Calcium Magnesium Potassium Sodium Calcium Magnesium Potassium ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Gum formation in stored gasoline is mainly due to the Higher aromatic content Oxidation & polymerisation of unsaturates Presence of sulphur Alkylation of unsaturates Higher aromatic content Oxidation & polymerisation of unsaturates Presence of sulphur Alkylation of unsaturates ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. 450 to 500 250 to 350 30 to 80 1 to 5 450 to 500 250 to 350 30 to 80 1 to 5 ANSWER DOWNLOAD EXAMIANS APP
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