ND Journeyman Plumber study plan

Map the drainage, waste, and venting chapters of the applicable plumbing code and list every table and definition you will be tested on

Define fixture unit, drainage fixture unit, and developed length from memory and state where each appears in sizing calculations

Trace a simple DWV layout from a water closet to the building drain and label trap arm, fixture branch, soil stack, vent stack, and building sewer

Explain the difference between a vent stack, stack vent, and individual vent without notes

Build a personal glossary of 25 code-defined plumbing terms in your own words

Size horizontal fixture branches and building drains using drainage fixture unit tables for at least three worked examples

Calculate correct trap arm length and fall limits for a given pipe diameter and demonstrate why an oversized trap arm vents poorly

Identify where cleanouts are required by distance, direction change, and pipe size, and mark them on your practice diagram

Diagnose five common venting failures (flat vent, crown vent, excessive trap arm, missing vent, wet vent misuse) and state the fix for each

Sketch a wet vent arrangement that complies with code and list its restrictions

Convert between pressure, head, and fixture demand to explain how a water supply system is sized from the meter to the farthest fixture

Size water service and distribution piping for a single-family dwelling using demand tables and developed length plus equivalent fitting length

List the minimum fixture flow pressures and explain what happens to a system when a flushometer valve is starved

Describe backflow prevention requirements and match each device type to the hazard it controls

Identify the code provisions governing water heater temperature and pressure relief piping and termination

Explain thermal expansion control and locate the required devices on a closed system

Compare PEX, copper, CPVC, and galvanized piping by joining method, pressure rating, and code restrictions

Trace a combined water and DWV layout for a two-story house and resolve conflicts between pipe runs and structural members

State the required air gap and backflow protection for each fixture type that can create a cross-connection

Recite the standard test procedures for DWV and water supply rough-in inspections

Classify at least 20 fixtures and appliances by trap requirement, vent requirement, and minimum clearance

State the water closet and urinal rough-in dimensions, mounting heights, and required clearances from memory

Explain the difference between a fixture outlet, trap seal, and trap arm and demonstrate how each affects installation layout

Identify the code requirements for indirect waste, air gaps, and floor drains in food service and mechanical spaces

Match common faucet and valve types to their applications, including tempering valves and anti-scald devices

Work through the permit, inspection, and testing sequence for a residential project from rough-in to final

State the accessibility and clearance requirements that affect fixture placement in commercial restrooms

Explain the code provisions for trap primers, fixture supports, and fixture setting that inspectors commonly cite

Answer 40 practice questions on fixtures and code and record the reason for every miss

Rewrite each missed question as a one-line rule you can recall on the job

Demonstrate safe handling and storage procedures for gas cylinders, solvents, and solder on a job site

Explain confined space, trenching, and ladder safety requirements that apply to plumbing work

Identify the correct tool for at least 15 common plumbing tasks and describe the maintenance each tool needs

State the code rules for pipe support spacing, hangers, and protection of piping from freezing and physical damage

Describe the steps for a gas piping pressure test and the safety precautions required before and during the test

Take two full-length timed practice exams and score each by domain to find remaining weak areas

Re-study only the two lowest-scoring domains and re-test those domains until you exceed 80 percent

Recite the top 30 code numbers, tables, and definitions you are most likely to be asked

Build a one-page formula and conversion sheet covering pressure, head, fixture units, slope, and developed length

Simulate the exam-day routine including timing, breaks, and question-flagging strategy