TEEX Basic Water Works Operations Practice Test

Among chemical characteristics, which item is listed alongside hardness and pH?

Turbidity Color Gases Odor

Correct Answer:

Gases

Explanation:

In water quality, chemical characteristics describe the dissolved chemical species and reactions in water. Hardness and pH reflect the water’s chemical composition and acidity, so gases—dissolved oxygen, carbon dioxide, and other dissolved gases—are also chemical characteristics because they’re chemical species present in solution that influence chemistry and behavior of the water. Turbidity, color, and odor are tied to physical or sensory aspects (suspended solids, appearance, and smell) rather than the chemical makeup, so they don’t fit this category as directly.

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