The exam content shown below only lists main category headings. Please consult the PSI exam bulletin from the button below for more detailed information about subject sub-categories.
|Subject Areas||# of|
|Plumbing Fundamentals and Safety||8|
|Materials, Uses and Specifications||6|
|Traps, Interceptors and Backwater Valves||4|
|Plumbing Fixtures, Fixture Fittings and Plumbing Appliances||4|
|Water Supply Systems||8|
|Drain, Waste and Vent Systems||13|
|Gas Appliances and Piping||40|
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