OHST Practice Exam

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If a truck's cargo has a pH of 9.0, what does this indicate?

  1. Cargo has a flash point below 100 degrees F

  2. Cargo has a flash point above 100 degrees F

  3. Cargo is an acid

  4. Cargo is a base

The correct answer is: Cargo is a base

A cargo with a pH of 9.0 indicates that it is a base. The pH scale measures how acidic or basic a substance is, where 0 to 6 is considered acidic, 7 is neutral, and 8 to 14 is basic. Since a pH of 9 falls into the basic range, it confirms that the cargo is not acidic but rather has alkaline properties. Understanding pH is essential in safety because it can impact how materials should be stored, handled, and what kind of protective measures may be necessary during transportation and usage.

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