⟩ Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm. A. n-paraffins B. olefins C. aromatics D. none of these
Option C
Option C
Paraffins are desirable in lubricating oil, as it has got high A. viscosity B. viscosity index C. smoke point D. pour point
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? A. Naphtha B. Vacuum residue C. Light gas oil D. Diesel
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.