Petroleum Refinery Engineering MCQ Questions & Answers

61

Butadiene is a/an

A) Di-olefin B) Naphthene C) Aromatic D) Olefin

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Answer & Solution

Answer: Option A

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62

Both asphalt and wax are produced by __________ base crude oils.

A) Naphthenic B) Asphalt C) Paraffin D) Mixed

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Answer & Solution

Answer: Option D

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63

Paraffins are desirable in lubricating oil, as it has got high

A) Viscosity B) Viscosity index C) Smoke point D) Pour point

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Answer & Solution

Answer: Option C

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64

Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.

A) Smoke point B) Paraffins C) Aromatics D) Naphthenes

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Answer & Solution

Answer: Option B

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65

Petroleum coke is commercially produced by the __________ process.

A) Hydrocracking B) Visbreaking C) Fluid catalytic cracking D) Delayed coking

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Answer & Solution

Answer: Option D

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66

Road grade bitumen is produced from vacuum residue by its

A) Aeration B) Pyrolysis C) Hydrogenation D) Steam reforming

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Answer & Solution

Answer: Option D

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67

Visbreaking process is used mainly for making

A) High cetane diesel B) High octane gasoline C) Fuel oil D) Smoke free kerosene

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Answer & Solution

Answer: Option C

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68

Research octane number refers to the

A) Low octane number motor fuels B) High octane number motor fuels C) High octane number aviation fuels D) Unleaded motor fuels

Discuss

Answer & Solution

Answer: Option B

Solution:

In petroleum refinery engineering, the research octane number (RON) refers to high octane number motor fuels (Option B).

The research octane number (RON) is a measure of the anti-knock properties of motor fuels. Higher RON values indicate better resistance to knocking or detonation in spark-ignition engines. Fuels with high RON values are desirable for use in high-performance engines or engines with high compression ratios, as they help prevent knocking and improve engine efficiency.

Therefore, the correct option is Option B: High octane number motor fuels.

69

Choose the correct statement.

A) Octane number of i-octane is zero B) Octane number of paraffins increases with increasing number of carbon atoms C) Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms D) The aromatics have lower octane number than naphthenes with same number of carbon atoms

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Answer & Solution

Answer: Option C

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70

Choose the correct statement.

A) Coking tendency increases with increasing molecular weight B) Coking tendency decreases with increasing molecular weight C) Higher pressure enhances coke formation D) Coking is an exothermic reaction

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Answer & Solution

Answer: Option A

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Petroleum Refinery Engineering MCQ Questions & Answers | Chemical Engineering