Petroleum Refinery Engineering The order of preference for feedstock to a catalytic reformer is Virgin naphtha - coking naphtha - catalytic naphtha Catalytic naphtha - coking naphtha - virgin naphtha Coking naphtha - virgin naphtha - catalytic naphtha Virgin naphtha - catalytic naphtha - coking naphtha Virgin naphtha - coking naphtha - catalytic naphtha Catalytic naphtha - coking naphtha - virgin naphtha Coking naphtha - virgin naphtha - catalytic naphtha Virgin naphtha - catalytic naphtha - coking naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has Low viscosity index High pour point and low smoke point All of these High self-ingnition temperature Low viscosity index High pour point and low smoke point All of these High self-ingnition temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ? Kerosene Heavy fuel oil Petrol Naphtha Kerosene Heavy fuel oil Petrol Naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Flash point of motor gasoline may be around __________ °C. 150 100 45 10 150 100 45 10 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent used in duo-sol extraction for lube oil upgradation is a mixture of Methyl ethyl ketone & glycol Propane & liquid sulphur dioxide Propane & phenol-cresol mixture Phenol & furfural Methyl ethyl ketone & glycol Propane & liquid sulphur dioxide Propane & phenol-cresol mixture Phenol & furfural ANSWER DOWNLOAD EXAMIANS APP
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