Plumbing NC II study plan

Identify and classify pipes by material (PVC, PPR, copper, galvanized iron) and schedule, and state the correct cutting and joining method for each.

Demonstrate the safe setup and use of a pipe cutter, hacksaw, and threading die on at least three pipe sizes.

Calculate and cut pipe lengths for a given DWV layout using a cutting list, allowing for fitting allowances.

Assemble a mock DWV branch with solvent-cemented PVC fittings, ensuring correct slope and alignment.

Thread galvanized iron pipe (½" to 1") using a manual die and assemble a leak-free joint with fittings.

Bend copper tube (soft and hard) using a spring bender and a lever bender without kinking, and join with solder or press fittings.

Install a 3-meter water supply line with elbows, tees, and reducers, applying correct support spacing and protection.

Pressure-test the assembled water line at 1.5 times working pressure and document any leaks and repairs.

Interpret a simple isometric plumbing plan and transfer pipe routes to a wall mock-up.

Install a water distribution system with a manifold or trunk-and-branch layout, including isolation valves and air chambers.

Install a DWV system with proper venting (individual and common vent) and check slope using a level.

Perform a smoke or water test on the DWV system and record results.

Read and extract dimensions, symbols, and notes from a residential plumbing plan and specification sheet.

Set out a bathroom group on a floor layout using a tape measure, chalk line, and laser level, marking fixture centerlines.

Calculate pipe lengths and fitting allowances from a plan and prepare a material take-off list.

Verify layout accuracy by checking squareness, parallelism, and elevation against the plan.

Install a water closet, lavatory, and floor drain according to manufacturer instructions and local code, ensuring proper sealing and clearance.

Test fixture operation (flush, flow, drainage) and adjust water levels and connections.

Diagnose and repair a leaking faucet, a running toilet, and a clogged drain using appropriate tools and methods.

Document a maintenance procedure for a sump pump or water heater.

Identify personal protective equipment (PPE) for plumbing tasks and demonstrate correct donning and doffing.

Conduct a hazard assessment of a simulated work area and propose control measures for at least five hazards.

Select and inspect hand and power tools for damage, and perform routine maintenance (e.g., oiling, blade replacement).

Demonstrate proper housekeeping and waste segregation after a task.

Integrate water supply and DWV rough-in for a half-bath, coordinating pipe routes to avoid conflicts.

Perform a combined pressure and DWV test, and record results.

Resolve a pipe routing conflict by adjusting layout while maintaining code-required slopes and clearances.

Prepare a bill of materials for the half-bath rough-in.

Complete a timed mock exam covering all domains, with emphasis on heavy domains 5, 6, and 7.

Review incorrect answers and create a personal summary sheet of key formulas, code clauses, and procedures.

Practice a practical assessment: install and test a small plumbing assembly within a set time.

Finalize a toolbox of reference notes and checklists for exam day.