AZ General Contractor common mistakes
AZ General Contractor · Understand the traps and how to avoid them.
Answers ROC regulatory items with generic 'fairness' logic instead of the Arizona statutory scheme - for example, assuming any complaint automatically produces a hearing, or that the Residential Contractors' Recovery Fund pays any judgment against a licensee.
Most prep time goes to trade and business topics; A.R.S. Title 32, Chapter 10 and the ROC rules read like dry administrative text, so candidates skim them and improvise on exam day.
What to do instead
Build a one-page ROC map before anything else: licensing and qualifying-party requirements, complaint and citation process, order of disciplinary actions, recovery fund eligibility and caps, and statutory contract requirements. Rehearse each step in sequence, and answer regulation items only from that map.
Selects 'general contractor' or the broadest license on scope vignettes without checking the specific classification or its capacity limit, and fails to spot that the described work falls outside the license held.
Commercial, residential and specialty titles blur together in everyday job-site speech; candidates study what the work is, not where the license boundary sits.
What to do instead
Memorize the ROC classification list with scope and monetary limits, plus the dual-license rule and the point at which work outside a classification becomes unlicensed contracting. Drill mixed vignettes and force yourself to name the correct classification before reading the answer options.
Treats a verbal change order or text-message scope addition as binding, and picks answers that let work proceed before the change is priced or signed.
Field and residential experience normalizes handshake changes, and the exam rewards the documented written-contract standard rather than job-site custom.
What to do instead
Adopt one exam rule: every scope, price or schedule change is written, dated, signed by the owner and priced before work proceeds. Know the elements Arizona requires in the written contract itself (contractor name and license number, owner information, scope, price or basis for compensation, payment schedule) and what happens when they are missing.
Confuses the preliminary notice deadline with the mechanics lien recording deadline, or skips lien items entirely because the numbers are unfamiliar.
Both are 'days after' figures, but notice goes out early in the job while the lien is recorded late; candidates memorize one number and apply it to both situations.
What to do instead
Keep a two-column card: (a) the preliminary 20-day notice, including who must send it because they lack a direct contract with the owner, and (b) recording a lien within 120 days after completion, plus the follow-on foreclosure window. For any lien question, first identify the claimant's contractual relationship to the owner.
Adds overhead and profit as a percentage of cost and then reports that number as the gross margin on the job.
Estimating habits are cost-plus in nature; a 20 percent markup on cost produces roughly a 16.7 percent margin, so any 'what is the margin' or 'what should the price be' item comes out wrong.
What to do instead
Drill both formulas until they are automatic: price = cost divided by (1 minus desired margin), and markup = margin divided by (1 minus margin). Back-solve margin from price on every bid item as a sanity check before selecting an answer.
Assumes the activity with the longest duration is the critical path and treats total float as spare time that can absorb any delay.
Bar charts read as a linear sequence, so candidates never trace the paths and therefore misjudge which activity controls completion and which delays are harmless.
What to do instead
On every schedule question, write out each path and total its durations; the critical path is the longest total duration with zero float. Test delay impacts by asking which path the delay lands on, and check whether a near-critical path becomes critical.
Estimates concrete and masonry quantities in feet or square feet, converts only at the very end, and leaves out depth, waste, or the deduction of openings.
Trade math happens in mixed units in the field and gets rounded informally; the exam rewards a clean volume in cubic yards and a net quantity with an explicit waste factor.
What to do instead
Use one chain every time: length times width times depth in feet, divide by 27 for cubic yards, multiply by (1 plus waste percentage), then round to the ordering unit. Apply the same discipline to masonry (deduct openings above the stated threshold) and to drywall and roofing squares.
Guesses code dimensional limits - stair riser and tread, guard height, handrail height, egress window sill - instead of recalling the actual numbers.
Experienced builders 'know it by eye' and never consult the table, so the small dimensional items become the easiest points lost on the trade-knowledge section.
What to do instead
Memorize the short list that actually gets tested: maximum riser 7-3/4 inches, minimum tread 10 inches, guard at least 36 inches, handrail 34 to 38 inches, egress sill no more than 44 inches, stairway headroom 6 feet 8 inches. Practice applying each number to a described assembly rather than reciting it cold.
Applies the 4-foot general-industry fall threshold to construction tasks and assumes federal OSHA directly runs enforcement in Arizona.
General-industry safety training bleeds into construction answers, and many candidates do not know that Arizona operates an approved state plan.
What to do instead
Anchor on 29 CFR 1926 for construction: fall protection at 6 feet, controlled access zones, ladders extending 3 feet above the landing, and enforcement through Arizona's state plan (ADOSH). Treat any answer citing 1910 numbers for a construction activity as a distractor.
Allows workers into a 5-foot-deep trench with no protective system and no named competent person, defending it on the grounds that the soil 'looked stable.'
Small residential excavations are rarely engineered, so field habit replaces the rule; exam items test the trigger depth and the specific duties attached to the competent-person role.
What to do instead
Memorize excavation triggers: a protective system at 5 feet unless the excavation is in stable rock and assessed by a competent person, egress within 25 feet at 4 feet, daily inspections, and setbacks for spoils and utilities. In the answer, name the competent person and the inspections they must perform rather than saying 'someone checked it.'