Petroleum Refinery Engineering MCQs

Chemical Engineering Objective Questions

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246. Platforming is a __________ process.

B. Fluidised bed

C. Non-regenerative & fixed bed

D. Regenerative

247. Octane number of gasoline is a measure of its

A. Resistance to knock

B. Ignition delay

C. Ignition temperature

248. Choose the correct statement regarding thermal cracking.

A. Moderate changes in operating temperature does not change the depth of cracking

B. Increased residence time results in the decreased severity of cracking

C. At low pressure, the yield of lighter hydrocarbons are more

D. Greater depth of cracking gives lower octane number gasoline

249. High aniline point of a petrofuel (say diesel) indicates that

A. It is highly aromatic in nature

B. It is highly paraffinic in nature

C. It has a very low diesel index

D. Its ignition quality is very poor

250. __________ determination is not a very significant and important test for gasoline.

A. Gum & sulphur content

C. Octane number

D. Reid vapor pressure

251. Cracking is

A. An exothermic reaction

B. An endothermic reaction

C. Favoured at very low temperature

D. None of these

252. Pyrolysis of kerosene or natural gasoline is done to produce mainly the

A. Olefins and aromatics

B. Lighter paraffins

C. Stabilised gasoline

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