⟩ The average boiling point of aviation turbine fuel is closest to that of A. lubricating oils B. LPG C. diesel D. Kerosene
Option D
Option D
Aniline point of the diesel is a measure of its __________ content. A. aromatic B. paraffin C. olefin D. naphthene
Petroleum A. is optically active. B. constitutes mainly of olefins. C. does not contain asphalt. D. does not contain aromatics.
Which of the following additives improves the cetane number of diesel? A. Amyl nitrate B. Ethyl mercaptan C. Napthenic acid D. Tetra ethyl lead
Both asphalt and wax are produced by __________ base crude oils. A. naphthenic B. asphalt C. paraffin D. mixed
Polymerization A. produces i-octane from cracked gases containing i-butane and butene. B. causes olefins to combine with each other. C. causes aromatics to combine with each other. D. is aimed at producing lubricating oil.
In catalytic alkylation, higher iso-butane to olefin ratio gives A. low final boiling point product B. higher yield C. both (a) and (b) D. neither (a) nor (b)
In case of liquid petrofuels, momentary combustion is observed at its A. flash point. B. preheating temperature corresponding to viscosity of 25 centistokes. C. flame temperature. D. fire point.
Which one is preferred for aircraft engine? A. High viscosity index lube oil. B. Low viscosity index lube oil. C. High freezing point aviation fuel. D. None of these.
In sweetening process, solutizer agent used with caustic alkali is A. potassium isobutyrate B. sodium plumbite C. methanol D. phenol
Petroleum coke is used mainly .in the A. discoloration of yellow glycerine. B. sugar refining. C. manufacture of carbon electrode. D. blast furnace for reduction of iron ore.