Red Seal Plumbing Practice Exam

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An activated carbon filter can reduce what type of chlorine in water?

Bound
Total
Free
Combined

The correct answer is: Free

Activated carbon filters are specifically designed to remove impurities and contaminants from water. Chlorine is typically used in a water treatment process to kill harmful bacteria and make the water safe for consumption. However, the presence of chlorine can also cause an unpleasant taste and odor. The type of chlorine that is responsible for these taste and odor issues is known as free chlorine. Therefore, an activated carbon filter would be most effective in removing free chlorine from water, making choice C the correct answer. Bound, total, and combined chlorine are not typically found in water and are not affected by activated carbon filters. Therefore, these options are incorrect.