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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about

3.5
1
0.1
2.5

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Petroleum Refinery Engineering
Higher viscosity of lubricating oil usually signifies

Higher flash point and fire point
Higher acid number
Lower flash point and fire point
Lower Reid vapour pressure

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Petroleum Refinery Engineering
Which is almost absent in crude petroleum?

Mercaptans
Cycloparaffins
Olefins
Naphthenes

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Petroleum Refinery Engineering
In case of liquid petrofuels, momentary combustion is observed at its

Flame temperature
Flash point
Preheating temperature corresponding to viscosity of 25 centistokes
Fire point

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Petroleum Refinery Engineering
Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely mis-cible. It means that the aniline point of the diesel is __________ the room temperature.

Less than
More than
Either more or less; depends on the room temperature
Same as

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Petroleum Refinery Engineering
True vapour pressure of a petroleum fraction __________ Reid vapour pressure.

Is more than
Is less than
Is same as
May be either more or less than

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