NH Journeyman Plumber study guide
NH Journeyman Plumber · Work through your exam, one topic at a time.
The New Hampshire Journeyman Plumber license is a state-issued credential administered through the New Hampshire Office of Professional Licensure and Certification (OPLC) and its Board of Plumbers. It is intended for plumbers who have completed the required practical experience and want to work as licensed journeymen under New Hampshire rules rather than as apprentices or unlicensed helpers. The NH Journeyman Plumber study guide has 7 sections and about 2,471 words.
01General Plumbing Knowledge
General Plumbing Knowledge is the framing domain: definitions, pipe and fitting materials, jointing methods, support and testing, plus the arithmetic that shows up in every other section - pressure versus head, fixture units, and grade. A plumbing system is the water service, distribution piping, fixtures and fixture fittings, soil and waste piping, vents, and the building drain/sewer up to the point of connection.
359 words, about 2 min02Plumbing Fixtures and Fixture Fittings
Fixture selection, fixture-unit values, water consumption limits, setting dimensions, trap and trap-arm rules, and backflow protection at the fixture. Consumption limits carried into code: water closets 1.6 gallons per flush, urinals 1.0 gpf, showerheads 2.5 gpm at 80 psi, kitchen faucets 2.2 gpm, public lavatory faucets 0.5 gpm per cycle.
336 words, about 2 min03Water Heaters and Related Equipment
Installation, relief protection, venting, and combustion air for storage and tankless water heaters, plus the safety devices inspectors look for first. Every storage water heater needs a temperature-and-pressure relief valve rated no higher than 210°F and 150 psi, installed in the top 6 inches of the tank or as the manufacturer directs, with no valve, cap, or plug on either side.
371 words, about 2 min04Water Supply and Distribution Systems
Sizing and layout of the water service and distribution system, pressure control, and cross-connection control. Sizing runs from water-supply fixture units (WSFU) to gallons per minute, then through pipe friction tables using developed length, fittings, and elevation.
325 words, about 2 min05Sanitary Drainage, Vents, and Storm Drainage
Drainage sizing and slope, cleanouts, backwater protection, venting methods, and storm drainage kept separate from sanitary flow. Slope: ¼ inch per foot for 2½-inch and smaller pipe, ⅛ inch per foot for 3- to 6-inch, 1/16 inch per foot for 8-inch and larger.
382 words, about 2 min06Fuel Gas Piping and Gas Appliances
Gas piping materials and sizing, appliance connections, combustion air and venting, and safe testing of fuel gas systems. The state adopts a fuel gas code from the NFPA 54 / IFGC family, and LP-gas work also involves New Hampshire LP-gas licensing requirements.
361 words, about 2 min07New Hampshire Plumbing Code, Statutes, and Rules
How plumbing is regulated in New Hampshire: the statewide code and its amendments, the licensing structure administered by the Board of Plumbers within the Office of Professional Licensure and Certification, permits, inspections, and enforcement. New Hampshire enforces one statewide plumbing code built on the International Plumbing Code with state amendments; local ordinances may be more stringent but cannot relax the state minimum.
337 words, about 2 min