PETROLEUM REFINERY ENGINEERING QUIZ

Which of the following is a naphthene?

Butene

Acetylene

Butadiene

Cyclohexane

TRUE ANSWER : ?
YOUR ANSWER : ?

In catalytic cracking, the

Gasoline obtained has very high aromatic content

Gasoline obtained has a very low octane number

Pressure & temperature is very high

Gasoline obtained has very high amount of gum forming compounds

TRUE ANSWER : ?
YOUR ANSWER : ?

Breathing loss on storage of gasoline occurs due to the

Both A & B

Fluctuation of ambient temperature during day and night

Presence of unsaturated air

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Octane number of gasoline produced by two stage fluidised catalytic cracking process is

87

80

92

97

TRUE ANSWER : ?
YOUR ANSWER : ?

Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).

0.03

35

70

3

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a sulphur compound present in petroleum ?

Thiophenes

Mercaptans

Pyroles

Sulphones

TRUE ANSWER : ?
YOUR ANSWER : ?

Petrolatum is

Same as petroleum ether

None of these

Petroleum coke

A mixture of microcrystalline wax in viscous hydrocarbon liquids

TRUE ANSWER : ?
YOUR ANSWER : ?

With increase in the molecular weight of aromatic present in kerosene, its smoking tendency

Remains same

Increases

Is unpredictable

Decreases

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 ?

Petrol

Heavy fuel oil

Kerosene

Naphtha

TRUE ANSWER : ?
YOUR ANSWER : ?

Mercaptans is represented as (where R and R' are alkyl groups)

R-S-R

R-S-R'

R-S-H

R-COOH

TRUE ANSWER : ?
YOUR ANSWER : ?