NV Journeyman Plumber study guide
NV Journeyman Plumber · Work through your exam, one topic at a time.
The Nevada Journeyman Plumber license is a state-issued credential that allows a plumber to work unsupervised on plumbing systems in Nevada and to supervise apprentices and helpers on qualifying work. It is administered through the Nevada State Contractors Board, which licenses plumbers in the state. The NV Journeyman Plumber study guide has 11 sections and about 3,583 words.
01Plumbing Terminology, Definitions, and Code Administration
The opening domain is vocabulary and code administration, because almost every later question turns on a defined term. Nevada plumbing rules rest on the Uniform Plumbing Code (UPC) as adopted and locally amended, so learn definitions in their code form and know who enforces them.
335 words, about 2 min02General Regulations, Permits, and Inspections
A plumbing permit is required before new installation, alteration, or replacement of piping and fixtures, and before most water heater change-outs. Applications state the scope, fixture count, and valuation; plans are required for commercial work and for systems beyond prescriptive limits.
294 words, about 1 min03Fixtures, Fixture Fittings, and Water Heaters
Fixtures must be listed, of nonabsorbent cleanable material, and set level and secure. Water closets need the centerline at least 15 inches from a side wall or partition and 15 inches from an adjacent fixture, with accessible fixtures following the adopted accessibility standard clear-floor-space rules.
353 words, about 2 min04Water Supply and Distribution Systems
Water service enters at the meter, becomes the building main, and branches to risers and fixture supplies. Piping is sized from fixture units and developed length using the code tables, with a minimum size for any fixture branch.
321 words, about 2 min05Sanitary Drainage, Vents, and Storm Drainage
Sanitary drainage moves by gravity. Horizontal pipe is graded at a quarter inch per foot for 2.5-inch and smaller, and an eighth inch per foot for 3-inch and larger.
355 words, about 2 min06Traps, Interceptors, and Special Wastes
A trap holds a water seal of 2 to 4 inches. Each fixture is separately trapped except where the code permits a combined waste for a set of fixtures.
331 words, about 2 min07Gas Piping and Fuel Gas Systems
Gas piping follows the fuel-gas chapter of the adopted plumbing or mechanical code. Use listed pipe and fittings: black steel, corrugated stainless steel tubing (CSST), or approved plastic where allowed.
320 words, about 2 min08Potable Water Protection, Backflow, and Cross-Connection Control
Backflow protection follows an order: an air gap is the only absolute protection, then the reduced-pressure principle assembly (RPZ), then the double check valve assembly, then the pressure vacuum breaker or atmospheric vacuum breaker for low-hazard, non-continuous pressure use. Hose bibbs take hose-connection vacuum breakers, and flushometer valves take integral or attached vacuum breakers.
301 words, about 2 min09Isometric Drawings, Plans, and Material Takeoffs
A plumbing plan shows fixtures in plan view with pipe sizes, runs, and a legend; the riser diagram shows vertical relationships and venting; sections and details show clearances and hangers. Scale is stated on the sheet, so measure and convert rather than assuming a value.
310 words, about 2 min10Safety, Tools, and Jobsite Practices
Nevada OSHA follows federal OSHA 1926. A protective system, meaning sloping, shoring, or shielding, is required at 5 feet deep or more, with a competent person inspecting daily.
328 words, about 2 min11Nevada Plumbing Statutes, Regulations, and Licensing
Nevada contractor licensing lives in NRS 624 and NAC 624, administered by the Nevada State Contractors Board, which licenses the business. The plumbing code itself is the adopted model code, the Uniform Plumbing Code, with state and local amendments enforced by each jurisdiction building official, such as Clark County, Las Vegas, Henderson, North Las Vegas, and Washoe County.
335 words, about 2 min