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31
Molecular weight of crude oil is in the range of
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Answer: Option B
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32
Octane number of gasoline is a measure of its
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Answer: Option A
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33
In petroleum refining, the process used for conversion of hydrocarbons to aromatics is
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Answer: Option B
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34
Illuminating characteristics of kerosene is expressed by its
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Answer: Option C
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35
Increase in the specific gravity of petroleum products indicates
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Answer: Option A
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36
The condesate obtained on compression of wet natural gas is termed as
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Answer: Option B
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37
An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.
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Answer: Option C
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38
The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively
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Answer: Option A
Solution:
In the electrical desalting process of crude oil, the main objective is to remove salts and other impurities by mixing the crude oil with water and applying an electric field.

The typical operating conditions for this process involve maintaining a pressure of 10 kg/cm2 and a temperature of 120°C.

These conditions are optimal for the efficient separation of impurities from the crude oil.

Therefore, Option A: 10 and 120 is the correct answer.
39
Which of the following has the highest gum forming tendency in gosoline?
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Answer: Option B
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40
Highest quality bitumen is produced from the __________ crude oil.
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Answer: Option B
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