Petroleum Refinery Engineering During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water. Remains unchanged Decreases Increases Decreases linearly Remains unchanged Decreases Increases Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones. Nitrogen decreases Sulphur decreases None of these Sulphur increases Nitrogen decreases Sulphur decreases None of these Sulphur increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Detergent is added as an additive in engine lubricating oil to Prevent rusting Increase oxidation stability Keep contaminants in suspension Reduce deposit formation Prevent rusting Increase oxidation stability Keep contaminants in suspension Reduce deposit formation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum Does not contain aromatics Constitutes mainly of olefins Does not contain asphalt Is optically active Does not contain aromatics Constitutes mainly of olefins Does not contain asphalt Is optically active ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process. 1000-10000 100 200-300 10 1000-10000 100 200-300 10 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Higher vapour pressure of gasoline indicates Low flash point Both A & B High breathing loss Neither A nor B Low flash point Both A & B High breathing loss Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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