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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Fuel oil is subjected to visbreaking to reduce its

Viscosity
Pressure drop on pumping
Pour point
All of these

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Petroleum Refinery Engineering
Straight run petrol as compared to methyl/ethyl alcohol has

Lower calorific value
Higher ignition temperature
Higher specific gravity
Lower octane number

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Petroleum Refinery Engineering
Electrical desalting of crude oil removes the __________ impurities.

Oleophobic
Neither A nor B
Both A & B
Oleophilic

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Petroleum Refinery Engineering
Molecular weight of petrol may be about

350-400
100-130
40-60
250-300

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Petroleum Refinery Engineering
Which of the following has the highest octane number?

Olefins
Naphthenes
Aromatics
I-paraffins

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Petroleum Refinery Engineering
Which of the following is desirable in petrol (gasoline) but undesirable in kerosene?

Mercaptans
Aromatics
Naphthenic acid
Paraffins

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