The Octane Rating of Straight Run Gasoline from Fractional Distillation

question 23

Multiple Choice

The octane rating of straight run gasoline from fractional distillation of petroleum can be raised by

• A) catalytic reforming.
• B) adding tertiary-butyl alcohol.
• C) adding ethanol.
• D) all of the above

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Definitions:

Extrinsic Motives

Motivations driven by external rewards or punishments rather than by the intrinsic value of the activity itself.

Activation Phase

A stage in the process of memory that involves the retrieval of information to use it actively.

Activation

The process of initiating or triggering a response or action, especially in the context of physiological or psychological functions.

Intensity

The degree of strength, force, or concentration of something, often used in contexts of light, sound, or emotions.