Texas Tradesman Plumber-Limited License Practice Exam

What is the typical pressure range for residential water systems?

20 to 40 PSI 40 to 60 PSI 60 to 80 PSI 80 to 100 PSI

Correct Answer:

40 to 60 PSI

Explanation:

The typical pressure range for residential water systems is 40 to 60 PSI, as this level ensures that household fixtures, appliances, and plumbing systems function efficiently without excessive strain. Pressure below 40 PSI may result in weak water flow, making it difficult to adequately supply appliances and fixtures, while pressure above 60 PSI could lead to increased wear and tear on plumbing components and potential water damage. Maintaining this pressure range is essential for optimal performance and longevity of the residential plumbing system.

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