Plumbing Trade References (FBC-Plumbing & handbooks)
The Florida Building Code — Plumbing and Fuel Gas volumes plus the standard trade handbooks: where sizing rules, fixture requirements, and DWV provisions live.
219 questions in our bank cite this reference.
The one thing to know
Plumbing code questions are chapter questions: water supply, DWV, vents, and fixtures each live in their own chapter. Learn the chapter map and the definitions chapter cold.
Your tab set
Florida exams allow pre-tabbed, highlighted references. Build these tabs before exam day, in book order.
Permit scope, rough-in and final inspection sequence
Defined terms
Clearances, accessible fixtures, overflows, materials
Safety devices (T&P relief), safe pans, drain terminations
Sizing, backflow prevention devices, pressure limits, thermal expansion, lead-free rules, pipe joints
DFU sizing, slopes, cleanouts, backwater valves, sumps & ejectors; storm/sanitary separation (Ch. 11)
Vent methods (wet, circuit, island), trap arm distance, termination
Trap seals, prohibited traps, grease interceptors
Gas piping sizing & testing, sediment traps, CSST bonding, venting categories, regulators
Category 1 piped gas/vacuum systems: zone valves, alarms, outlet pressures, brazing & verification
Class I/II/III standpipes, hose connections, fire department connections
Collector orientation & tilt, open vs closed loop, heat exchangers, freeze and scald protection
Isometrics and symbols, grade & fall, fitting takeoff, gas demand (Plumbers Handbook / Mathematics for Plumbers)
Highlight the question, underline the answer
Don't just tab your books — mark them as you practice. Every time a question sends you into a reference, leave a two-part mark behind: highlight the passage the question is about, and underline the exact words that answer it. Do this through your whole question bank and the book turns into a map of the tested material — so on exam day you recognize the spot, not just the section.
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Highlight what the question asks about
When you look up a practice question, highlight the sentence or table the question turns on. That block is now a visual landmark you'll spot on a fast flip.
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Underline the exact answer
Inside the highlight, underline the specific number, deadline, or phrase that is the answer — with a fine-tip pen. Highlight = the topic; underline = the fact.
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Color-code by what trips you up
Use one highlighter color for deadlines and numbers, another for definitions, a third for the answers you got wrong twice. Your weak spots become the brightest marks in the book.
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Let your tabs and marks compound
A tab gets you to the chapter; the highlight gets you to the paragraph; the underline gets you to the answer. Built up across a full question bank, that three-layer trail is the open-book skill the exam actually tests.
All marking must be done before you walk in — the rules allow pre-marked books but bar making any new marks (or bringing notes) during the exam.
Navigating under time pressure
- FBC-Plumbing Chapter 2 is definitions — defined terms decide trick questions.
- Fuel gas questions route to the separate FBC — Fuel Gas volume, not the plumbing volume.
- Math-heavy questions (grades, offsets, gas demand) come from the handbook side, not the code.