100+ Free AZ ROC C-24 Ornamental Metals Practice Questions

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2026 Statistics

Key Facts: AZ ROC C-24 Ornamental Metals Exam

30 Questions

Official Question Count

PSI Candidate Information Bulletin

75 Minutes

Time Limit

PSI Candidate Information Bulletin

70%

Passing Score

Arizona Registrar of Contractors

$66

Exam Fee

PSI Services LLC

Open Book Computerized MCQ

Exam Format

PSI / AZ ROC Guidelines

100 Questions

Practice Question Bank

OpenExamPrep Practice Bank

The Arizona ROC C-24 Ornamental Metals Examination consists of 30 scored multiple-choice questions administered in a 75-minute open-book PSI computer-delivered session with a 70% passing threshold ($66 exam fee). This online practice bank provides 100 realistic English-language practice questions with comprehensive technical explanations adapted for exam preparation.

Sample AZ ROC C-24 Ornamental Metals Practice Questions

Try these sample questions to test your AZ ROC C-24 Ornamental Metals exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Section 1015.4 of the International Building Code (IBC), what is the maximum diameter sphere that must NOT be able to pass through any opening in a required guardrail up to a height of 34 inches?

A.4 inches

B.3.5 inches

C.6 inches

D.8 inches

Explanation: IBC Section 1015.4 mandates that required guardrails shall have intermediate rails or ornamental patterns such that a 4-inch-diameter sphere cannot pass through any opening up to a height of 34 inches. This rule prevents small children from falling through or becoming trapped in balcony and stair guards.

2What is the minimum required height for guards installed along open-sided walking surfaces in commercial occupancies under the International Building Code (IBC)?

A.36 inches

B.42 inches

C.48 inches

D.38 inches

Explanation: IBC Section 1015.3 requires guards to form a vertical protective barrier not less than 42 inches in height, measured vertically from the leading edge of the tread, adjacent walking surface, or finished floor.

3Under the International Residential Code (IRC), what is the minimum required guard height for open-sided walking surfaces, balconies, or porches located more than 30 inches above the floor or grade below?

A.30 inches

B.34 inches

C.36 inches

D.42 inches

Explanation: IRC Section R312.1.2 mandates that guards for one- and two-family dwellings shall be not less than 36 inches in height, measured vertically from the adjacent walking surface.

4What is the allowable height range for handrails measured vertically from the sloped plane of the tread nosing or stair landing under IBC Section 1014.2?

A.30 to 34 inches

B.32 to 36 inches

C.36 to 40 inches

D.34 to 38 inches

Explanation: IBC Section 1014.2 specifies that handrail height must be a minimum of 34 inches and a maximum of 38 inches, measured vertically from the leading edge of the stair tread nosing or finished ramp surface.

5According to IBC Section 1014.7 and ADA standards, what is the minimum required clear space between a wall and a wall-mounted handrail?

A.1.5 inches

B.2.0 inches

C.1.25 inches

D.3.0 inches

Explanation: IBC Section 1014.7 requires a clear space of not less than 1.5 inches (38 mm) between the handrail and adjacent wall or surface to ensure adequate hand clearance for a secure grasp without scraping knuckles.

6Under IBC Section 1607.8.1, handrails and top rails of guard assemblies must be designed to resist what minimum concentrated load applied in any direction at any point along the top rail?

A.100 lbf

B.200 lbf

C.300 lbf

D.500 lbf

Explanation: IBC Section 1607.8.1 requires handrail and guard assemblies to withstand a minimum concentrated load of 200 pounds-force (lbf) applied in any direction at any point along the top rail to produce the maximum load effect.

7In addition to concentrated loads, top rails of guards in commercial occupancies must be designed to withstand what minimum uniform design load under IBC Section 1607.8.1?

A.20 lbf per linear foot

B.35 lbf per linear foot

C.50 lbf per linear foot

D.100 lbf per linear foot

Explanation: IBC Section 1607.8.1 mandates that guard top rails in occupancies other than one- and two-family dwellings must resist a uniform load of 50 pounds-force per linear foot (plf) applied in any direction along the top.

8What is the minimum design load requirement for intermediate balusters, panel fillers, and ornamental infill elements under IBC Section 1607.8.1.2?

A.25 lbf applied horizontally over 1 square foot

B.200 lbf applied vertically over 1 square foot

C.100 lbf applied over the total panel area

D.50 lbf applied horizontally over a 1 square foot area

Explanation: IBC Section 1607.8.1.2 requires intermediate balusters, panel fillers, and ornamental infill elements to withstand a concentrated load of 50 lbf applied horizontally over a 1-square-foot area.

9For Type I circular handrails, what is the allowable outside diameter range specified by the IBC for graspability compliance?

A.1.25 inches to 2.0 inches

B.1.0 inch to 1.5 inches

C.1.5 inches to 2.5 inches

D.2.0 inches to 3.0 inches

Explanation: IBC Section 1014.3.1 defines Type I handrails with a circular cross section to have an outside diameter of not less than 1.25 inches (32 mm) and not greater than 2.0 inches (51 mm).

10Under commercial IBC egress requirements (Section 1011.5.2), what are the maximum riser height and minimum tread depth dimensions for stairs?

A.Maximum riser 7.75 inches, minimum tread 10 inches

B.Maximum riser 7 inches, minimum tread 11 inches

C.Maximum riser 8 inches, minimum tread 9 inches

D.Maximum riser 6.5 inches, minimum tread 12 inches

Explanation: IBC Section 1011.5.2 mandates a maximum stair riser height of 7 inches (178 mm) and a minimum stair tread depth of 11 inches (279 mm) for commercial means of egress.

About the AZ ROC C-24 Ornamental Metals Exam

The Arizona ROC C-24 Ornamental Metals Examination is a computer-delivered, open-book trade examination administered by PSI Services LLC for the Arizona Registrar of Contractors. The exam tests practical and theoretical knowledge of fabrication, layout, assembly, and installation of ornamental metalwork (wrought iron, structural tubing, stainless steel, aluminum, brass, bronze), guardrails, handrails, gates, fences, balconies, stairs, structural fasteners, anchoring into concrete/masonry, corrosion control, AWS welding processes (SMAW, GMAW, GTAW, FCAW), joint preparation, weld inspection, and OSHA 1926 construction safety standards.

Questions

30 scored questions

Time Limit

75 minutes

Passing Score

70%

Exam Fee

$66 (Arizona ROC / PSI Services LLC)

AZ ROC C-24 Ornamental Metals Exam Content Outline

53%

Metals

Fabrication, layout, assembly, and installation of non-structural and structural architectural and ornamental metalwork (wrought iron, steel tubing, stainless steel, aluminum, brass, bronze), handrails, guardrails, guard clearance and load requirements (IBC/IRC), gates, fences, balconies, stairs, expansion and chemical anchors, structural fasteners, corrosion protection, hot-dip galvanizing, powder coating, anodizing, shop drawings, layout geometry, and joinery.

33%

Welding

Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW/MIG), Gas Tungsten Arc Welding (GTAW/TIG), Flux-Cored Arc Welding (FCAW), oxy-fuel cutting, plasma arc cutting, AWS welding symbols, joint preparation (groove, fillet, bevel), preheat/interpass temperatures, weld defects (porosity, undercut, lack of penetration, slag inclusion), non-destructive testing (visual, dye penetrant, magnetic particle), welding equipment polarities (DCEP, DCEN, AC), and filler metal classifications (E7018, E6010, ER70S-6, ER4043).

14%

OSHA Safety

OSHA 29 CFR 1926 standards for steel erection, fall protection (harnesses, lanyards, guardrails, tie-off points), welding and cutting safety (29 CFR 1926.350-354, compressed gas cylinder storage and handling, fire watch, flash protection, ventilation, filter lens shade selection), PPE, hazard communication, ladder/scaffold safety, rigging/hoist safety, and lockout/tagout (LOTO).

How to Pass the AZ ROC C-24 Ornamental Metals Exam

What You Need to Know

Passing score: 70%
Exam length: 30 questions
Time limit: 75 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

AZ ROC C-24 Ornamental Metals Study Tips from Top Performers

1Memorize IBC/IRC guardrail and handrail dimension and load requirements: 42-inch minimum guard height, 34 to 38-inch handrail height, 4-inch sphere rule for baluster spacing, 200 lb concentrated top rail load, and 50 lb/ft uniform load.

2Master AWS electrode classifications and welding processes: understand SMAW numbers (e.g., E7018 low-hydrogen rod, 70 ksi tensile strength, all-position), GMAW gas mixtures (75/25 Ar/CO2), and GTAW tungsten electrode types.

3Understand mechanical and chemical anchoring rules into concrete: calculate embedment depths, minimum edge distances (typically 10x bolt diameter for expansion anchors), and proper hole cleaning procedures for epoxy anchors.

4Study OSHA 29 CFR 1926.350 rules for compressed gas cylinders: 20-foot separation between oxygen and fuel gas cylinders (or a 5-foot, 1/2-hour fire barrier), valve protection caps, and upright securing.

5Review corrosion mitigation strategies: hot-dip galvanizing per ASTM A123, avoiding galvanic corrosion between dissimilar metals (copper/steel contact), and surface preparation before powder coating.

Frequently Asked Questions

How many questions are on the official Arizona ROC C-24 Ornamental Metals exam?

The official PSI C-24 Ornamental Metals exam contains 30 scored multiple-choice questions. Candidates are allotted 75 minutes to complete the test.

What passing score is required for the AZ ROC C-24 exam?

A minimum passing score of 70% (21 correct out of 30 questions) is required to pass the trade exam.

Is the Arizona ROC C-24 Ornamental Metals exam open book?

Yes, the examination is open-book. Approved reference materials (such as AWS structural welding manuals, IBC code books, and OSHA 29 CFR 1926 standards) may be brought into the PSI test center.

What topics carry the highest weight on the exam?

Metals carries the highest weight at 53% (16 questions), followed by Welding at 33% (10 questions) and OSHA Safety at 14% (4 questions).

Where can I schedule the AZ ROC C-24 Ornamental Metals exam?

Examinations are scheduled online through PSI Services LLC at https://test-takers.psiexams.com/azcon or by phone with PSI candidate services.

100+ Free AZ ROC C-24 Ornamental Metals Practice Questions

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