⟩ Testing of the knocking characteristics of petrofuels is done in a __________ engine. A. Carnot B. CFR (Co-operative fuel research) C. Stirling D. diesel
Option B
Option B
A petroleum well is called 'dry', if it contains A. very little oil. B. no natural gas. C. only natural gas. D. all (a), (b) and (c).
Pick out the wrong statement. A. Lower boiling paraffins have higher octane number than higher paraffins. B. Dehydrogenation of naphthenes to aromatics is a desirable reaction in reforming process. C. The most ideal feedstock for thermal reforming is dearomatised kerosene. D. Catalyst used in catalytic reforming is platinum on silica-alumina base.
95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C. A. 2 B. -40 C. 30 D. 55
Aniline point is the A. characteristic property of diesel & lubricating oils. B. measure of aromatic content of oil. C. both (a) and (b). D. neither (a) nor (b).
Choose the correct statement. A. Coking tendency increases with increasing molecular weight. B. Coking tendency decreases with increasing molecular weight. C. Higher pressure enhances coke formation. D. Coking is an exothermic reaction.
In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process. A. 100 B. 200-300 C. 1000-10000 D. 10
Presence of sulphur in gasoline A. leads to corrosion. B. increases lead susceptibility. C. decreases gum formation. D. helps during stabilisation.
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