Wrong move
Direct answer
The risky shortcut is hiding a cleanout behind finished work with no access panel. Cleanout placement depends on pipe size, direction changes, building drain/sewer layout, and adopted code access rules.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as Cleanouts and drill a smaller set before returning to mixed practice.
Prep path
Plumbing License Study Guide
Independent journeyman and master plumber license study guide for state-specific code review, drainage, venting, traps, water supply, fixture units, and trade math.
SamplesPlumbing License Sample Questions
Public Plumbing License Practice Test sample questions with explanations.
PracticeOpen Plumbing License Practice Test
Start with the 10-question free set before deciding whether to unlock the full question bank.