Visbreaking Produces fuel oil of lower viscosity Produces gasoline only Is carried out at atmospheric pressure Uses natural gas as feed TRUE ANSWER : ? YOUR ANSWER : ?
A good lubricant should have high Viscosity index Volatility Pour point None of these TRUE ANSWER : ? YOUR ANSWER : ?
Clay treatment of petroleum products Adsorb arsenic from feedstock to catalytic reforming Desulphurise straight run gasoline & kerosene Decolorises & stabilises cracked gasoline All of these TRUE ANSWER : ? YOUR ANSWER : ?
Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C. 140 50 70 90 TRUE ANSWER : ? YOUR ANSWER : ?
Aromatics are desired constituents of Petrol Lubricating oil Kerosene Diesel TRUE ANSWER : ? YOUR ANSWER : ?
Pick out the undesirable property for a solvent meant for dewaxing of lube oil. High solubility of wax in the solvent Complete miscibility with oil Both A & B Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?
Aniline point test of an oil qualitatively indicates the __________ content of an oil. Olefin Aromatic Paraffin Naphthene TRUE ANSWER : ? YOUR ANSWER : ?
Crude oil is subjected to vacuum distillation in the last stage, because None of these Lighter/low boiling products are prone to thermal decomposition High purity products can be obtained thereby High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fractions of petroleum contains maximum sulphur? Atmospheric residue Diesel Gasoline Naphtha TRUE ANSWER : ? YOUR ANSWER : ?