100+ Free Arizona ROC A-7 Piers & Foundations Practice Questions
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Key Facts: Arizona ROC A-7 Piers & Foundations Exam
60 Q
Official Scored Questions
PSI Outline
150 min
Exam Time Limit
PSI Outline
70%
Passing Score
AZ ROC / PSI
$66
Trade Exam Fee
PSI Exams
4 Years
Required Experience
A.R.S. § 32-1122
2 Years
Exam Result Validity
AZ ROC Rules
The Arizona ROC A-7 Piers and Foundations (Commercial) examination consists of 60 scored questions with a 150-minute time limit, requiring a passing score of 70%. Administered as an open-book test by PSI for a $66 fee, it tests 8 blueprint areas: Equipment & Technique (8), Compaction (8), Excavation & Grading (9), Soil Types (8), Piles (7), Concrete Formwork (5), General Concrete (8), and Safety (7). The 100 practice questions provided here are an English-language MCQ adaptation designed for open-book test preparation.
Sample Arizona ROC A-7 Piers & Foundations Practice Questions
Try these sample questions to test your Arizona ROC A-7 Piers & Foundations exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1A foundation excavation requires removing 500 bank cubic yards (BCY) of dense soil with a measured swell factor of 25%. What is the volume of loose soil (LCY) that must be hauled away by dump trucks?
2A structural fill pad requires 850 compacted cubic yards (CCY) of soil. If the soil experiences a shrinkage factor of 15% when compacted from its bank state, how many bank cubic yards (BCY) of soil must be excavated from the borrow pit?
3When excavating a deep building foundation in sandy soil below the water table, which dewatering system is most effective for lowering the water table by 15 feet around the perimeter before excavation begins?
4What is the typical unconfined angle of repose for dry, clean, loose sand when determining un-shored stock-pile slopes or un-supported excavation slopes?
5Before excavating spread footings, how should batter boards and string lines be positioned relative to the building corner stakes?
6What soil phenomenon occurs when upward hydraulic seepage gradient in an open excavation matches the submerged unit weight of a fine sand or silt layer?
7According to OSHA 29 CFR 1926 Subpart P Appendix B, what is the maximum allowable height of an individual vertical bench step in a single-benched excavation made in Type B soil?
8A hydraulic excavator with a 1.5 LCY bucket completes a digging cycle every 20 seconds. Assuming a job efficiency factor of 80% (48-minute hour), what is the estimated hourly production rate?
9A benchmark elevation is established at 100.00 feet. A sight taken on a grade rod held on the benchmark reads 5.25 feet (backsight). If the bottom of a foundation trench must be at elevation 91.50 feet, what should the grade rod read (foresight) at the trench bottom?
10Which term describes the percentage increase in volume that occurs when soil is excavated from its natural (bank) state into a uncompacted (loose) state?
About the Arizona ROC A-7 Piers & Foundations Exam
The Arizona ROC A-7 Piers and Foundations commercial classification authorizes contractors to construct, alter, or repair structural piers, driven timber/steel piles, drilled shaft caissons, underpinning systems, structural footings, foundation walls, soil compaction, and foundation excavation. The exam is administered by PSI as an open-book, computer-delivered test containing 60 scored questions with a 150-minute time limit. A passing score of 70% (at least 42 correct answers) is required.
Questions
60 scored questions
Time Limit
150 minutes
Passing Score
70%
Exam Fee
$66 (Arizona Registrar of Contractors / PSI Services LLC)
Arizona ROC A-7 Piers & Foundations Exam Content Outline
Excavation and Grading
Site clearing, slope stability, trench excavation, dewatering techniques, earthmoving equipment capacity, cut-and-fill volume calculations, and grade staking (9 questions on official exam).
Equipment and Technique
Drilling rigs, continuous flight augers (CFA), pile driving hammers, tremie pipe operations, slurry pumps, crane capacity, and deep foundation machinery (8 questions on official exam).
Compaction
Standard Proctor (ASTM D698) and Modified Proctor (ASTM D1557) tests, optimum moisture content, relative compaction, lift thickness, vibratory rollers, and sand cone density testing (8 questions on official exam).
Soil Types
USCS soil classification system, soil shear strength, expansive clay and caliche, Atterberg limits, bearing capacity, and soil mechanics in desert environments (8 questions on official exam).
General Concrete
Concrete mix design, water-cementitious ratio (w/cm), tremie concrete placement under slurry, slump testing (ASTM C143), air entrainment, ACI cover rules, and 28-day cylinder compressive testing (8 questions on official exam).
Piles
Driven timber and steel H-piles, pipe piles, drilled shaft caissons, micropiles, helical piers, pile driving formulas (ENR), dynamic load testing (PDA), and allowable axial capacity (7 questions on official exam).
Safety
OSHA 29 CFR 1926 Subpart P excavation safety (soil Types A/B/C, protective systems, competent person duties), Subpart CC crane safety, fall protection, silica safety, and PPE (7 questions on official exam).
Concrete Formwork
Form pressure calculations per ACI 347, wall and pier form bracing, form tie capacity, concrete placement rate limits, rebar placement, and minimum stripping times (5 questions on official exam).
How to Pass the Arizona ROC A-7 Piers & Foundations Exam
What You Need to Know
- Passing score: 70%
- Exam length: 60 questions
- Time limit: 150 minutes
- Exam fee: $66
Keys to Passing
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
Arizona ROC A-7 Piers & Foundations Study Tips from Top Performers
Frequently Asked Questions
What is the scope of work covered by the Arizona ROC A-7 license?
The A-7 Piers and Foundations classification allows contractors to perform commercial construction, installation, maintenance, and repair of structural piers, driven timber and steel piles, drilled shaft caissons, underpinning, concrete footings, foundation walls, soil compaction, and site excavation related to foundation systems.
What is the structure and passing score of the AZ ROC A-7 trade exam?
The exam consists of 60 scored multiple-choice questions administered by PSI with a 150-minute time limit. Candidates must achieve a minimum score of 70% (42 correct answers out of 60) to pass. The examination fee is $66.
Is the Arizona ROC A-7 trade exam open book?
Yes. The PSI A-7 exam is an open-book test. Candidates are allowed to bring approved code books and reference manuals into the PSI testing center, provided they are bound, permanently tabbed, and free of loose papers or handwritten notes.
What other exams are required to get an Arizona ROC contractor license?
In addition to the A-7 Trade Exam, all Arizona contractor qualifying parties must pass the Arizona Statutes and Rules Examination (SRE) administered online through GMetrix for $61 with a 70% passing score.
What experience is required for an A-7 qualifying party?
The qualifying party must document a minimum of 4 years of practical or management trade experience in piers, driven piles, drilled shafts, and foundation construction, with at least 2 of those years completed within the last 10 years.
How long are AZ ROC exam results valid?
Passing exam scores are valid for 2 years from the date of the examination. The complete license application package must be submitted to the Arizona Registrar of Contractors within this 2-year window.