Q. Choose the correct statement regarding thermal cracking.

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Q. A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.

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Q. Which is almost absent in crude petroleum?

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Q. Naphthenic acid is a/an __________ compound.

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Q. Glycol added to petrol acts as a/an __________ agent.

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Q. Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

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Q. Which one is used to determine the colour of petroleum products ?

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Q. Pick out the wrong statement.

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Q. Feedstock for the production of biodiesel is

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Q. Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic

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Q. During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.

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Q. Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to

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Q. Operating temperature and pressure in catalytic reforming is about

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Q. With increase in density, the viscosity of petroleum products

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Q. Detergent is added as an additive in engine lubricating oil to

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Q. Removal of light fractions from crude oil is called its

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Q. Pick out the wrong statement.

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Q. In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen

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Q. The yield of straight run LPG from crude oil is about __________ weight percent.

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Q. Deoiling is the process of removal of oil from wax. It is done by the __________ process.

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