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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Cetane number of high speed diesel must be?

45
75
30
95

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Petroleum Refinery Engineering
H/C ratio (by weight) for the same number of carbon atoms is the highest in case of

Olefins
Aromatics
Paraffins
Naphthenes

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Petroleum Refinery Engineering
Sulphuric acid treatment of petroleum products removes the __________ materials.

Asphaltic
Color forming
All of these
Gum forming

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Petroleum Refinery Engineering
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.

Remains unchanged
Decreases
Decreases linearly
Increases

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Petroleum Refinery Engineering
Bottom product of atmospheric pressure crude oil distillation column is termed as

Asphalt
Heavy ends
Residuum
Reduced crude

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Petroleum Refinery Engineering
Waxy crudes are treated with chemical additives mainly to

Precipitate wax
Remove wax
Depress its pour point
Dissolve wax

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