Petroleum Refinery Engineering MCQs

Question 1

Which of the following factors does not govern the mechanism of petroleum formation from organic sources?

Accepted Answer

PH of the soil

Answer

Bacterial action

Answer

Heat

Answer

Pressure

Question 2

An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.

Accepted Answer

40

Answer

5

Answer

15

Answer

60

Question 3

The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to

Accepted Answer

Sustain the reactor pressure

Answer

Obviate catalyst poisoning

Answer

Maintain the reaction temperature

Answer

Hydrogenate the feed stock

Question 4

Olefins are

Accepted Answer

Unsaturated cyclic compounds (hydrocarbons)

Answer

Saturated hydrocarbons

Answer

Present in substantially good quantity in crude petroleum

Answer

None of these

Question 5

Which of the following gasolines (unleaded) has the least octane number?

Accepted Answer

Straight run gasoline

Answer

Catalytically cracked gasoline

Answer

Catalytically reformed gasoline

Answer

Polymer gasoline

Question 6

Reforming

Accepted Answer

All of the above

Answer

Uses naphtha as feedstock

Answer

Does not much affect the molecular weight of the feed

Answer

Improves the quality & yield of gasoline

Question 7

The most suitable solvent for deasphalting vacuum residue is

Accepted Answer

Methyl ethyl ketone

Answer

Propane

Answer

Doctor's solution

Answer

Methanol amine

Question 8

The coking process normally mostly used in Indian oil refineries is the __________ coking process.

Accepted Answer

Delayed

Answer

Flexi

Answer

Fluid

Answer

Contact

Question 9

Pick out the correct statement pertaining to catalytic cracking.

Accepted Answer

All of the above

Answer

With increase in the reactor pressure, octane number of gasoline decreases

Answer

With increase in the reactor temperature, gasoline yield decreases for a given conversion

Answer

Percentage conversion increases with increase in the catalyst to oil ratio