Option A
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
With increase in density, the viscosity of petroleum products A. increases B. decreases C. remains same D. either (a) or (b)
Operating temperature and pressure in catalytic reforming is about A. 1-5 Kgf/cm2 & 200°C. B. 15-45 Kgf/cm2 & 450-550°C. C. 50 - 75 kgf/cm2 & 600 - 800°C. D. 5-10 kgf/cm2 & 150 - 250°C.
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).
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