Chemical Engineering - Petroleum Refinery Engineering

31. 

Which of the following is the easiest to crack?

A. Paraffins
B. Olefins
C. Naphthenes
D. Aromatics

Answer: Option A

Explanation:

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32. 

Flash point of a liquid petroleum fuel gives an idea about its

A. volatility.
B. explosion hazards characteristics.
C. nature of boiling point diagram.
D. all (a), (b) and (c)

Answer: Option D

Explanation:

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33. 

Clay treatment of petroleum products

A. decolorises & stabilises cracked gasoline.
B. desulphurise straight run gasoline & kerosene.
C. adsorb arsenic from feedstock to catalytic reforming.
D. all (a), (b) & (c).

Answer: Option D

Explanation:

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34. 

Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has

A. high pour point and low smoke point.
B. low viscosity index.
C. high self-ingnition temperature.
D. all (a), (b) and.(c).

Answer: Option B

Explanation:

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35. 

Catalyst used in isomerisation process is

A. H2SO4
B. H3PO4
C. HF
D. AlCl3

Answer: Option D

Explanation:

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