PETROLEUM REFINERY ENGINEERING QUIZ

1 centistoke is equal to __________ Redwood I seconds.

1

40.8

4.08

0.408

TRUE ANSWER : ?
YOUR ANSWER : ?

Waxes present in petroleum products

Crystallise out at low temperature

Are not soluble in them

Can be separated out by distillation

Decrease their viscosity

TRUE ANSWER : ?
YOUR ANSWER : ?

Smoke point of a good burning kerosene may be around __________ mm.

0-5

100-120

20-25

60-75

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Olefins

Naphthenes

Paraffins

Aromatics

TRUE ANSWER : ?
YOUR ANSWER : ?

Furfural solvent extraction is used for upgrading (by dissolving aromatics)

Wax

Naphtha

Cracking feedstock

Lubricating oils

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the highest octane number?

Naphthenes

Aromatics

Olefins

I-paraffins

TRUE ANSWER : ?
YOUR ANSWER : ?

Clay treatment of petroleum products

Desulphurise straight run gasoline & kerosene

Decolorises & stabilises cracked gasoline

All of these

Adsorb arsenic from feedstock to catalytic reforming

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has maximum hydrogen/carbon ratio (by weight)?

Naphtha

Diesel

Fuel oil

Gasoline

TRUE ANSWER : ?
YOUR ANSWER : ?

In petroleum refining, the process used for conversion of hydrocarbons to aromatics is

Alkylation

Hydrotreating

Catalytic cracking

Catalytic reforming

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an important property of fuel oil/furnace oil?

Viscosity

Sulphur content

Flash point

Aniline point

TRUE ANSWER : ?
YOUR ANSWER : ?

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