Petroleum Refinery Engineering MCQs

Question 1

Which of the following has the maximum °API gravity of all?

Accepted Answer

Petrol

Answer

Diesel

Answer

Kerosene

Answer

Furnace oil

Question 2

In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction

Accepted Answer

Heavy distillates

Answer

Intermediate distillates

Answer

Light ends

Answer

Residues

Question 3

Illuminating characteristics of kerosene is expressed by its

Accepted Answer

Luminosity number

Answer

Smoke point

Answer

Aniline point

Answer

Aromatic content

Question 4

Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has

Accepted Answer

All of the above

Answer

High pour point and low smoke point

Answer

Low viscosity index

Answer

High self-ingnition temperature

Question 5

Presence of sulphur in gasoline

Accepted Answer

Leads to corrosion

Answer

Increases lead susceptibility

Answer

Decreases gum formation

Answer

Helps during stabilisation

Question 6

Feedstock for polymerisation is

Accepted Answer

Cracked gases rich in C 2 & C 4 olefins

Answer

Naphtha

Answer

Low boiling aromatics

Answer

None of these

Question 7

Name the endothermic reaction out of the following:

Accepted Answer

Hydrocracking

Answer

Catalytic cracking

Answer

Dehydrogeneration of naphthene to produce aromatic

Answer

Catalytic polymerisation

Question 8

Which of the following processes in oil refinery does not employ 'cracking'?

Accepted Answer

None of these

Answer

Coking

Answer

Visbreaking

Answer

Pyrolysis

Question 9

Pick out the wrong statement.

Accepted Answer

A pale color of petroleum product indicates lower viscosity

Answer

Color of petroleum products indicates the degree of refinement

Answer

Lighter petroleum distillates are lighter in color than the heavier residual oils

Answer

Flouroscene of oils helps to detect its adulteration