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 1 to 5 30 to 80 450 to 500 250 to 350 1 to 5 30 to 80 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process. 200-300 100 10 1000-10000 200-300 100 10 1000-10000 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering __________ is not an important refinery process for upgrading the quality of lubricating oil. Clay treatment Solvent refinning Deoiling Hydrotreatment Clay treatment Solvent refinning Deoiling Hydrotreatment ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Detergent is added as an additive in engine lubricating oil to Reduce deposit formation Increase oxidation stability Keep contaminants in suspension Prevent rusting Reduce deposit formation Increase oxidation stability Keep contaminants in suspension Prevent rusting ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pyrolysis of kerosene or natural gasoline is done to produce mainly the Lighter paraffins Diesel Olefins and aromatics Stabilised gasoline Lighter paraffins Diesel Olefins and aromatics Stabilised gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pour point of a petrofuel is None of these Multiple of 5°F Multiple of 3°F 5°C below the temperature at which oil ceases to flow None of these Multiple of 5°F Multiple of 3°F 5°C below the temperature at which oil ceases to flow ANSWER DOWNLOAD EXAMIANS APP
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