Plumbing Journeyman Test – 2025/2026 – 75 Q&As on Fixture Units, Trap Arms, Piping & Clearances

This document provides 75 fully answered questions with technical values, dimensions, and standards for the Plumbing Journeyman Test 2025/2026. It covers critical information needed for exam preparation, including trap arm dimensions by pipe size, fixture connector lengths, code-compliant clearances for toilets, urinals, and lavatories, water and drainage fixture unit counts, and strapping requirements for various piping materials such as cast iron, copper, galvanized, ABS, and PEX. Also included are maximum drainage lengths, vent piping capacities, and vertical/horizontal limitations for pipe diameters from 1 1/4" to 4". This concise but comprehensive guide is tailored for candidates preparing for the journeyman plumbing license exam and professionals reviewing for code compliance or installation guidelines. This document is essential for plumbing apprentices, journeyman candidates, building inspectors, HVAC installers, and trade school students preparing for certification exams or daily fieldwork involving residential or commercial plumbing systems. Keywords: plumbing exam, journeyman plumber, trap arm, fixture units, vent piping, drainage lengths, code clearances, copper pipe strapping, PEX supports, ABS pipe, galvanized pipe, toilet clearance, lavatory spacing, urinal standards, water heater connector, drainage capacity, venting requirements, plumbing code