Catalyst used in the catalytic cracking is_____________________? A. Silica-alumina B. Silica gel C. Vanadium pentoxide D. Nickel

For gasoline, the flash point (<50°C) is determined by the______________________? A. Abel apparatus B. Pensky-Marten’s apparatus C. Saybolt chromometerD. None of these

Main constituent of natural gas is___________________? A. CH4 B. C2H2 C. C2H4 D. C2H6

Crude oil is subjected to vacuum distillation in the last stage, because_________________? A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose B. Lighter/low boiling products are prone to thermal decomposition C.…

Aniline point test of an oil qualitatively indicates the ______________ content of an oil? A. Paraffin B. OlefinC. Aromatic D. Naphthene

Pour point and freezing point is equal for__________________? A. Petrol B. DieselC. Water D. Crude petroleum

Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg? A. 600-750 B. 250-350 C. 1000-1500 D.…

Solution used in Doctor’s treatment for the removal of mercaptans is_________________? A. Sodium hydroxideB. Sodium plumbite C. Cupric chloride D. Potassium isobutyrate

Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________? A. Propane B. Diethylene glycolC. Aqueous solution (10% water) of diethylene glycol D. Methyl ethyl ketone (MEK)

Straight run petrol as compared to methyl/ethyl alcohol has_________________? A. Lower calorific valueB. Lower octane number C. Higher specific gravity D. Higher ignition temperature