Option B
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
Choose the correct statement. A. Octane number of i-octane is zero. B. Octane number of paraffins increases with increasing number of carbon atoms. C. Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms. D. The aromatics have lower octane number than naphthenes with same number of carbon atoms.
Petroleum is believed to have originated from __________ sources. A. vegetable B. animal C. both (a) and (b) D. neither (a) nor (b)
Which of the following has the lowest flash point of all? A. Diesel B. Kerosene C. Petrol D. Furnace oil
Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of A. propane & butane B. butane & ethane C. methane & ethane D. methane & carbon monoxide
Straight run petrol as compared to methyl/ethyl alcohol has A. lower calorific value. B. lower octane number. C. higher specific gravity. D. higher ignition temperature.
Detergent is added as an additive in engine lubricating oil to A. reduce deposit formation. B. keep contaminants in suspension. C. increase oxidation stability. D. prevent rusting.
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. high purity products can be obtained thereby. D. none of these.
Removal of light fractions from crude oil is called its A. sweetening B. dehydration C. stabilisation D. visbreaking
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