Petroleum Refinery Engineering

1. Which of the following is not a sulphur compound present in petroleum?

1. Thiophenes
2. Mercaptans
3. Sulphones
4. Pyrroles

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2. 'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the _________ of virgin naphtha into small boiling range cuts.

1. Steam reforming
2. Distillation
3. Desulphurisation
4. None of these

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3. _________ base crude oil is also called asphaltic crude.

1. Paraffinic
2. Naphthenic
3. Mixed
4. Aromatic

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4. _________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation.

1. Magnesium
2. Potassium
3. Calcium
4. Sodium

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5. _________ converts n-paraffins to i-paraffins.

1. Alkylation
2. Polymerisation
3. Isomerisation
4. None of these

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6. _________ determination is not a very significant and important test for gasoline.

1. Gum & sulphur content
2. Viscosity
3. Octane number
4. Reid vapor pressure

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7. _________ is not an important refinery process for upgrading the quality of lubricating oil.

1. Deoiling
2. Solvent refining
3. Clay treatment
4. Hydro-treatment

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8. _________ test is done to find out the softening point of bitumen.

1. Impact
2. Ball and ring
3. Flame
4. Viscosity

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9. _________ treatment is done for appreciable improvement in viscosity index of lubricating oil.

1. Acid
2. Solvent extraction
3. Alkali
4. Clay

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10. 1 centistoke is equal to _________ Redwood I seconds.

1. 1
2. 4.08
3. 0.408
4. 40.8

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