Petroleum Refinery Engineering Detergent is added as an additive in engine lubricating oil to Reduce deposit formation Keep contaminants in suspension Increase oxidation stability Prevent rusting Reduce deposit formation Keep contaminants in suspension Increase oxidation stability Prevent rusting ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is the most desirable component of a good quality kerosene? I-paraffins N-paraffins Aromatics Naphthenes I-paraffins N-paraffins Aromatics Naphthenes ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Tetra-ethyl lead is added in gasoline to Reduce gum formation Reduce the pour point Increase its smoke point Increase its octane number Reduce gum formation Reduce the pour point Increase its smoke point Increase its octane number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Both asphalt and wax are produced by __________ base crude oils. Naphthenic Paraffin Asphalt Mixed Naphthenic Paraffin Asphalt Mixed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In sweetening process, solutizer agent used with caustic alkali is Methanol Sodium plumbite Phenol Potassium isobutyrate Methanol Sodium plumbite Phenol Potassium isobutyrate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pour point of a petrofuel is 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 None of these ANSWER DOWNLOAD EXAMIANS APP
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