Chemical Engineering - Petroleum Refinery Engineering

11. 

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

A. Catalytically cracked gasoline
B. Straight run gasoline
C. Catalytically reformed gasoline
D. Polymer gasoline

Answer: Option B

Explanation:

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12. 

Feed for reforming is generally

A. naphtha or straight run gasoline.
B. reduced crude.
C. vacuum gas oil.
D. atmospheric gas oil.

Answer: Option A

Explanation:

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13. 

A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below :

The vapour pressure of the fuel oil will be __________ mm Hg.

A. 736
B. 727.5
C. 512
D. 767.8

Answer: Option A

Explanation:

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14. 

Which of the following is the most important property for a jet fuel ?

A. Cloud point
B. Pour point
C. Colour
D. Freezing point

Answer: Option D

Explanation:

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15. 

Which parameter is used for the grading of paraffin waxes ?

A. Specific gravity
B. Melting point
C. Viscosity
D. Penetration number

Answer: Option C

Explanation:

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