Petroleum Refinery Engineering MCQs

Question 1

Casing head gasoline is the liquid

Accepted Answer

Gasoline separated from wet natural gas by compression

Answer

Butane

Answer

Propane

Answer

Natural gas

Question 2

Hydrogen percentage (by weight) in crude petroleum may be about

Accepted Answer

15

Answer

5

Answer

25

Answer

35

Question 3

95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C.

Accepted Answer

2

Answer

-40

Answer

30

Answer

55

Question 4

Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the

Accepted Answer

All of the above

Answer

Elimination of solvent drying facility

Answer

Higher nitration temperature

Answer

Lower solvent dilution ratio

Question 5

Waxes present in petroleum products

Accepted Answer

Crystallise out at low temperature

Answer

Can be separated out by distillation

Answer

Are not soluble in them

Answer

Decrease their viscosity

Question 6

The most important property for a jet fuel is its

Accepted Answer

Freezing point

Answer

Viscosity

Answer

Calorific value

Answer

Flash point

Question 7

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

Accepted Answer

Gives higher yield of petrol

Answer

Lower octane number of petrol

Answer

Higher sulphur content in the product

Answer

Higher gum forming material in petrol

Question 8

Crude oil is pumped by a __________ pump.

Accepted Answer

Centrifugal

Answer

Gear

Answer

Screw

Answer

Reciprocating

Question 9

Aniline point is the

Accepted Answer

Both A & B

Answer

Characteristic property of diesel & lubricating oils

Answer

Measure of aromatic content of oil

Answer

Neither A nor B