Q. Naphtha yield in straight run distillation of crude oil may be about __________ percent.

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Q. Mercapsol and Unisol processes are meant for the

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Q. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is

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Q. Which of the following is the most suitable feed for platforming process (reforming) ?

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Q. In sweetening process, solutizer agent used with caustic alkali is

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Q. Sulphuric acid treatment of petroleum products removes the __________ materials.

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Q. 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.

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Q. Which of the following processes consumes hydrogen ?

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Q. Petroleum deposits are detected by the.

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Q. In catalytic alkylation, higher iso-butane to olefin ratio gives

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Q. In case of liquid petrofuels, momentary combustion is observed at its

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Q. Polymerisation

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Q. Both asphalt and wax are produced by __________ base crude oils.

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Q. Which one is preferred for aircraft engine ?

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Q. Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm.

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Q. Petroleum coke is commercially produced by the __________ process.

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Q. Crude oil produced by Indian oil fields are predominantly __________ in nature.

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Q. In solutizer sweetening process, solutizer solution used is

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Q. Which of the following contains maximum sulphur ?

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Q. Alkylation

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