Petroleum Refinery Engineering Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? Naphthenic acid Aromatics Mercaptans Paraffins Naphthenic acid Aromatics Mercaptans Paraffins ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which parameter is used for the grading of paraffin waxes? Specific gravity Melting point Viscosity Penetration number Specific gravity Melting point Viscosity Penetration number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Mercaptans are added to liquefied petroleum gas (LPG) to Increase its calorific value Reduce its cost Narrow down its explosion limit Assist in checking its leakage from cylinder Increase its calorific value Reduce its cost Narrow down its explosion limit Assist in checking its leakage from cylinder ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the lowest viscosity (at a given temperature) of all? Naphtha Kerosene Diesel Lube oil Naphtha Kerosene Diesel Lube oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater. Electric immersion None of these Steam coil Pipestill Electric immersion None of these Steam coil Pipestill ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Phenols are added in gasoline to Increase its pour point Improve the octane number Reduce its viscosity Act as an antioxidant Increase its pour point Improve the octane number Reduce its viscosity Act as an antioxidant ANSWER DOWNLOAD EXAMIANS APP
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