PETROLEUM REFINERY ENGINEERING QUIZ

Which of the following is the most important property for a jet fuel?

Cloud point

Pour point

Colour

Freezing point

TRUE ANSWER : ?
YOUR ANSWER : ?

The most suitable solvent for deasphalting vacuum residue is

Propane

Doctor's solution

Methyl ethyl ketone

Methanol amine

TRUE ANSWER : ?
YOUR ANSWER : ?

Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration

Both A & B

Neither A nor B

Less than 90% promotes polymerisation

More than 98% promotes cracking

TRUE ANSWER : ?
YOUR ANSWER : ?

Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.

Straight run

Polymer

Casing head

Unleaded

TRUE ANSWER : ?
YOUR ANSWER : ?

Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?

Heavy fuel oil

Petrol

Kerosene

Naphtha

TRUE ANSWER : ?
YOUR ANSWER : ?

Mercaptans are

Undesirable in petrol, as they reduce its octane number

Low boiling sulphur compounds

Added in LPG cylinders to detect gas leakage by its smell

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Visbreaking process is used mainly for making

High octane gasoline

Smoke free kerosene

High cetane diesel

Fuel oil

TRUE ANSWER : ?
YOUR ANSWER : ?

Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm.

100

25

5

10

TRUE ANSWER : ?
YOUR ANSWER : ?

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

2.5

3.5

1

0.1

TRUE ANSWER : ?
YOUR ANSWER : ?

The main use of heavy gas oil produced by the vacuum distillation unit is as a

Feedstock for fluid catalytic cracking unit

Blending component for petrol

Blending component for kerosene

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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