PETROLEUM REFINERY ENGINEERING QUIZ

Pick out the additive property of a lube oil out of following.

Flashpoint

°API gravity

Viscosity

Specific gravity

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ determination is not a very significant and important test for gasoline.

Gum & sulphur content

Viscosity

Reid vapor pressure

Octane number

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of sulphur in gasoline

Increases lead susceptibility

Helps during stabilisation

Leads to corrosion

Decreases gum formation

TRUE ANSWER : ?
YOUR ANSWER : ?

Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater.

None of these

Steam coil

Pipestill

Electric immersion

TRUE ANSWER : ?
YOUR ANSWER : ?

Phenols are added in gasoline to

Reduce its viscosity

Increase its pour point

Act as an antioxidant

Improve the octane number

TRUE ANSWER : ?
YOUR ANSWER : ?

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

All of these

Elimination of solvent drying facility

Higher nitration temperature

Lower solvent dilution ratio

TRUE ANSWER : ?
YOUR ANSWER : ?

Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.

140

90

50

70

TRUE ANSWER : ?
YOUR ANSWER : ?

Flash point of diesel/kerosene (>50°C) is determined by the

Pensky-Martens apparatus

None of these

Abel apparatus

Saybolt chromometer

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following fractions of petroleum contains maximum sulphur?

Diesel

Atmospheric residue

Gasoline

Naphtha

TRUE ANSWER : ?
YOUR ANSWER : ?

The octane number of aviation gasoline may be

>100

79

97

87

TRUE ANSWER : ?
YOUR ANSWER : ?

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