Petroleum Refinery Engineering MCQ Questions & Answers

1

Name the hydrocarbon having the poorest oxidation stability.

A) Naphthene B) Olefin C) Paraffin D) Aromatics

Discuss

Answer & Solution

Answer: Option B

Solution:

In petroleum refinery engineering, aromatics are the hydrocarbons having the poorest oxidation stability.

Aromatics, such as benzene, toluene, and xylene, contain one or more benzene rings in their molecular structure. These compounds are highly reactive and prone to oxidation, which can lead to the formation of harmful by-products and degradation of the petroleum product's quality over time.

Therefore, the correct option is Option D: Aromatics.

2

Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg.

A) 600-750 B) 250-350 C) 1000-1500 D) 2000-2500

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

3

Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with

A) Methyl alcohol B) Ethyl alcohol C) Methane D) Ethane

Discuss

Answer & Solution

Answer: Option A

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4

Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.

A) Bauxite B) Fuller's earth C) Activated clay D) All of the above

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Answer & Solution

Answer: Option D

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5

Pick out the undesirable property for a solvent meant for dewaxing of lube oil.

A) Complete miscibility with oil B) High solubility of wax in the solvent C) Both A & B D) Neither A nor B

Discuss

Answer & Solution

Answer: Option C

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6

Pick out the wrong statement.

A) Higher temperature is employed in visbreaking than in thermal cracking B) Pyrolysis is a mild thermal cracking process C) Lead suceptibility of petrol produced by catalytic process is more than that produced by thermal cracking D) Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process

Discuss

Answer & Solution

Answer: Option A

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7

Catalyst used in isomerisation process is

A) H₂SO₄ B) H₃PO₄ C) HF D) AlCl₃

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Answer & Solution

Answer: Option D

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8

Paraffin base crude oil as compared to asphalt base crude gives

A) Higher yield of straight run gasoline B) Higher octane number gasoline C) Lower viscosity index lube oil D) Poorer yield of lube oil

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Answer & Solution

Answer: Option A

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9

Straight run petrol as compared to methyl/ethyl alcohol has

A) Lower calorific value B) Lower octane number C) Higher specific gravity D) Higher ignition temperature

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Answer & Solution

Answer: Option B

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10

Feed for reforming is generally

A) Naphtha or straight run gasoline B) Reduced crude C) Vacuum gas oil D) Atmospheric gas oil

Discuss

Answer & Solution

Answer: Option A

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Petroleum Refinery Engineering MCQ Questions & Answers | Chemical Engineering