Free Journeyman Plumber Practice Test by State: 2026 Guide
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Under the IPC as adopted in Colorado, what is the minimum size drain pipe required for a water closet?
Drainage Systems
Question · Easy
How to Become a Plumber in 2026: License, Salary by State & Career Path
Complete 2026 guide to becoming a plumber. Covers apprenticeship requirements, journeyman and master licensing, BLS May 2025 median pay of $63,800, specializations, and career advancement. Free plumber exam prep included.
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Branch interval
Administration and General Regulations
Flashcard
According to the IPC as enforced in Colorado, what is the minimum slope for a 4-inch horizontal drainage pipe?
Any pipe that carries wastewater or waterborne wastes inside a building's plumbing system.
Sanitary piping
Guess the Term
Chapter 1: Passing the Colorado Journeyworker Plumber Exam
1.1 Exam Blueprint, Format, and the 2024 Code Changeover
Study guide
Under Colorado's plumbing code, what is the DFU value for a residential lavatory?
Read the clue and guess the term in 6 tries.
Game
Where does the building drain end and the building sewer begin?
Per the IPC as adopted in Colorado, what is the minimum depth of a fixture trap seal?
Find 45 plumber practice routes across 44 states and DC, confirm your actual credential and references, and work through source-bounded code and trade-math examples.
Kind of pipe that moves sewage with fecal matter to the building drain or building sewer.
According to the IPC as enforced in Colorado, at what intervals must cleanouts be installed on horizontal drainage piping 4 inches and smaller?
Question · Medium
Vent stack vs. stack vent
Under the IPC as adopted in Colorado, what is the maximum number of DFUs that can be connected to a 3-inch horizontal branch?
Question · Hard
Discharge from a fixture, appliance, area or appurtenance that has no fecal matter.
1.2 Colorado Licenses, Experience Hours, and Apprentice Supervision
Per the IPC as enforced in Colorado, what is the required slope for a 2-inch horizontal drainage pipe?
Swap tiles to line up three of the same term.
Term Match
Flood level rim vs. critical level
According to the IPC as adopted in Colorado, what is the minimum size building sewer when serving more than one water closet?
Vertical main of soil, waste or vent piping that passes through one or more stories.
Under the IPC as enforced in Colorado, what is the maximum tailpiece length from a fixture outlet to the trap weir?
What do you read off an isometric (riser) drawing on this exam?
Per the IPC as adopted in Colorado, what is the DFU value for a residential bathtub with shower?
Piping that supplies air to or from a drainage system, or circulates it to protect trap seals.
Air circulation
1.3 Permits, Inspections, Blue Tags, and Board Enforcement
According to the IPC as enforced in Colorado, what is the maximum trap arm length for a 1-1/2-inch drain?
Flip two cards at a time to find matching terms.
Term Pairs
Developed length
Under the IPC as adopted in Colorado, what is the minimum cleanout size required on a 4-inch drain?
Kind of vent that connects where two fixture drains meet and serves as the vent for both fixtures.
Under the IPC as adopted in Colorado, what type of backflow preventer is required for a high-hazard cross-connection?
Water Supply
Architect's scale: what does 1/4 inch = 1 foot-0 inches mean when you measure a plan?
According to the IPC as enforced in Colorado, what is the maximum hot water temperature at bathing fixtures?
Kind of venting in which one horizontal pipe serves as both drain and vent, which the IPC permits for fixtures within two bathroom groups on the same floor.
Chapter 2: General Regulations (IPC Chapter 3)
2.1 Approved Materials, Certification, and General Installation Rules
Under the IPC as adopted in Colorado, what is the minimum water supply pipe size for a single-family dwelling?
Find five hidden terms in a grid of letters.
Term Search
IPC 312.2 - drainage and vent WATER test
Per the IPC as enforced in Colorado, what is the maximum static water pressure allowed in a distribution system?
___-connection: a physical link or arrangement between two otherwise separate piping systems, one potable and the other of questionable safety, steam, gas or chemical.
According to the IPC as adopted in Colorado, what is the minimum water supply pipe size to a kitchen sink?
IPC 312.3 - drainage and vent AIR test
Under the IPC as enforced in Colorado, when is a thermal expansion tank required on a water heater?
Air ___: clear vertical distance through open air between a water outlet's lowest opening and the flood-level rim of the receptacle it fills.
2.2 Protection of Pipes: Contact, Notching, Shield Plates, and Freezing
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