⟩ Increase in the specific gravity of petroleum products indicates A. decrease in paraffin content. B. increase in thermal energy per unit weight. C. increase in aromatic content. D. higher H/C ratio.
Option A
Option A
Which of the following has the highest octane number? A. Aromatics B. i-paraffins C. Naphthenes D. Olefins E. n-paraffins
Maximum use of petroleum coke is in A. adsorption refining operation. B. fuel gas manufacture. C. carbon electrode manufacture. D. iron ore reduction.
Carbon/hydrogen ratio (by weight) is maximum (out of following) for A. gasoline B. kerosene C. light gas oil D. heavy fuel oil
The catalytic cracking of heavier petroleum fraction is done to produce mainly A. gasoline B. asphalt C. diesel oil D. tar
The most commonly used feed stock for the reforming reactor is A. heavy fuel oil B. residuum C. straight run gasdine D. casing head gasoline
The doctor's solution comprises of sodium plumbite in A. alcohal B. water C. aqueous caustic soda D. soda ash
Catalyst used in the catalytic cracking is A. silica-alumina B. silica gel C. vanadium pentoxide D. nickel
Specific gravity of a petroleum product gives an indication of its A. degree of refinement. B. hydrocarbon content type (aromatic or paraffinic). C. ease of atomisation. D. sulphur content.
Pick out the wrong statement. A. Aromatics have higher specific gravity than paraffins, B. Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ρ2) where, ρ is the specific gravity of the fuel at 15.5°C. C. Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre). D. Higher specific gravity of petrofuels means higher C/H ratio.
Which is the most effective catalyst used in catalytic cracking of petroleum products? A. Iron oxide B. Nickel C. Vanadium pentoxide D. Zeolite