Texas Master Plumber Exam Pass Rate, Format & Study Guide

The Texas master plumber examination includes 210 multiple-choice questions: 60 on plumbing codes and 25 each on water heater installation, OSHA construction safety, Texas Accessibility Standards, LP gas piping, plumbing math and license law and board rules (TSBPE review course). It also includes sizing charts and a drainage and vent design; the testing time is 360 minutes plus a 30-minute break. This portal practices the 210 multiple-choice questions; it does not grade the sizing charts or the design.

Passing the examination is a step toward a Texas master plumber license, needed to run a plumbing business or hold a responsible master plumber role.

Licensed journeyman plumbers in Texas preparing for the master license.

The certifying body does not publicly publish an official pass rate for this exam. Be wary of third-party sites citing a specific number here — treat any pass-rate claim you see elsewhere for this exam as unverified.

The candidate handbook explains how to retest after an unsuccessful attempt and what it costs; confirm the current rules with TSBPE.

You need 70 percent to pass, reported as a percent score. The mock exam here covers only the multiple-choice sections, so it is a study tool rather than a prediction. Format: 210 multiple-choice questions plus sizing and design tasks; this portal practices the multiple-choice sections. No official pass rate is available for this exam, so none is quoted here.

The Texas master plumber examination includes 210 multiple-choice questions: 60 on plumbing codes and 25 each on water heater installation, OSHA construction safety, Texas Accessibility Standards, LP gas piping, plumbing math and license law and board rules (TSBPE review course). It also includes sizing charts and a drainage and vent design; the testing time is 360 minutes plus a 30-minute break. This portal practices the 210 multiple-choice questions; it does not grade the sizing charts or the design. 210 multiple-choice questions (60 codes, 25 each on water heaters, OSHA, TAS, LP gas, math and license law) plus sizing charts and a drainage/vent design · 360 minutes plus a 30-minute break · 70 percent to pass. You need 70 percent to pass, reported as a percent score. The mock exam here covers only the multiple-choice sections, so it is a study tool rather than a prediction.

• Plumbing Codes28.6%
• Plumbing Codes: Water Heater Installation11.9%
• OSHA Construction Safety Regulations11.9%
• Texas Accessibility Standards11.9%
• Liquefied Petroleum Gas Piping Installation11.9%
• Plumbing Related Mathematics11.9%
• Plumbing License Law and Board Rules11.9%

The content outline spreads questions across 7 areas: Plumbing Codes (28.6%); Plumbing Codes: Water Heater Installation (11.9%); OSHA Construction Safety Regulations (11.9%); Texas Accessibility Standards (11.9%); Liquefied Petroleum Gas Piping Installation (11.9%); Plumbing Related Mathematics (11.9%); Plumbing License Law and Board Rules (11.9%).

TSBPE requires a journeyman license and the experience set in its rules before you can sit the master examination. Confirm the current requirements with TSBPE.

TSBPE application and examination fees apply; confirm them with TSBPE. Code books are extra.

This guide does not cover license renewal and continuing professional education; check TSBPE for the current requirements.

Start with the heaviest areas of the content outline: Plumbing Codes (28.6%); Plumbing Codes: Water Heater Installation (11.9%); OSHA Construction Safety Regulations (11.9%). Then work through the remaining areas, and finish with timed full-length practice runs of 210 questions in one sitting.

Content outlines, fees and passing standards change; this guide follows the official documents listed under Verification as of October 2026. Check TSBPE and Pearson VUE before you register.