Petroleum Refinery Engineering MCQs

Question 1

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

Accepted Answer

Reduced crude

Answer

Heavy ends

Answer

Asphalt

Answer

Residuum

Question 2

True vapour pressure of a petroleum fraction __________ Reid vapour pressure.

Accepted Answer

May be either more or less than

Answer

Is less than

Answer

Is more than

Answer

Is same as

Question 3

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.

Accepted Answer

Same as

Answer

More than

Answer

Less than

Answer

Either more or less; depends on the room temperature

Question 4

Which of the following processes consumes hydrogen?

Accepted Answer

Fluid catalytic cracking

Answer

Visbreaking

Answer

Propane deasphalting

Answer

None of these

Question 5

Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.

Accepted Answer

5

Answer

1

Answer

15

Answer

25

Question 6

Pick out the wrong statement.

Accepted Answer

High viscosity index means a large change in viscosity with change in temperature

Answer

Multigrade lubricating oils have high viscosity index

Answer

Paraffinic oil has very high viscosity index

Answer

Naphthenic oil has very low viscosity index

Question 7

The solvent used in Barisol dewaxing process is

Accepted Answer

Benzol and ethylene dichloride

Answer

Hexane

Answer

Furfural

Answer

Methyl ethyl ketone (MEK)

Question 8

Higher pressure in the reforming reactor

Accepted Answer

None of these

Answer

Increases coke formation

Answer

Increases the rate of reaction

Answer

Produces high octane number gasoline

Question 9

Which of the following processes is used for the production of petroleum coke?

Accepted Answer

Cracking

Answer

Stabilisation

Answer

Visbreaking

Answer

Reforming