Q. Mercaptans are

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Q. Paraffin base crude oil as compared to asphalt base crude gives

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Q. True boiling point apparatus is used for the

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Q. In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.

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Q. Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.

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Q. Solvent used in the deasphalting process is

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Q. A good lubricant should have high

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Q. Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.

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Q. The main use of heavy gas oil produced by the vacuum distillation unit is as a

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Q. Stabilisation of gasoline (petrol) means

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Q. Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.

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Q. __________ is not an important refinery process for upgrading the quality of lubricating oil.

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Q. Pick out the undesirable property for a solvent meant for dewaxing of lube oil.

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Q. Which of the following is used as a catalyst in fluidised bed catalytic cracking ?

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Q. Casing head gasoline is the liquid

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Q. Flash point of an oil gives an idea of the

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Q. Furfural solvent extraction is used for upgrading (by dissolving aromatics)

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Q. Illuminating characteristics of kerosene is expressed by its

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Q. Which of the following constituents present in petroleum is responsible for ash formation?

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Q. The coking process normally mostly used in Indian oil refineries is the __________ coking process.

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