Petroleum Refinery Engineering Detergent is added as an additive in engine lubricating oil to Prevent rusting Reduce deposit formation Increase oxidation stability Keep contaminants in suspension Prevent rusting Reduce deposit formation Increase oxidation stability Keep contaminants in suspension ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering A good lubricant should have high Volatility Pour point Viscosity index None of these Volatility Pour point Viscosity index None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Percentage of straight run gasoline in a typical crude oil may be around 38 18 52 6 38 18 52 6 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Isomerisation converts the __________ tot-paraffins. Naphthenes None of these Paraffins Olefins Naphthenes None of these Paraffins Olefins ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum coke is commercially produced by the __________ process. Visbreaking Delayed coking Hydrocracking Fluid catalytic cracking Visbreaking Delayed coking Hydrocracking Fluid catalytic cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Crystallise out at low temperature Can be separated out by distillation Are not soluble in them Decrease their viscosity Crystallise out at low temperature Can be separated out by distillation Are not soluble in them Decrease their viscosity ANSWER DOWNLOAD EXAMIANS APP
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