⟩ Pick out the undesirable property for a solvent meant for dewaxing of lube oil. A. Complete miscibility with oil. B. High solubility of wax in the solvent. C. Both (a) and (b). D. Neither (a) nor (b).
Option C
Option C
Feed for reforming is generally A. naphtha or straight run gasoline. B. reduced crude. C. vacuum gas oil. D. atmospheric gas oil.
1 centistoke is equal to __________ Redwood I seconds. A. 1 B. 4.08 C. 0.408 D. 40.8
Which of the following gasolines (unleaded) has the least octane number? A. Catalytically cracked gasoline B. Straight run gasoline C. Catalytically reformed gasoline D. Polymer gasoline
Which of the following is the most important property for a jet fuel? A. Cloud point B. Pour point C. Colour D. Freezing point
Which parameter is used for the grading of paraffin waxes? A. Specific gravity B. Melting point C. Viscosity D. Penetration number
Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight. A. 85 B. 65 C. 50 D. 98
Which of the following has the minimum °API gravity of all? A. Diesel B. Kerosene C. Petrol D. Furnace oil
Higher pressure in the reforming reactor A. increases coke formation. B. increases the rate of reaction. C. produces high octane number gasoline. D. none of these.
The main reaction in reforming is the A. dehydrogenation of naphthenes. B. hydrogenation of naphthenes. C. hydrocracking of paraffins. D. saturation of olefins.
Carbon percentage (by weight) in crude petroleum may be about A. 65 B. 75 C. 85 D. 95