100+ Free Arizona ROC CR-65 Commercial Glazing Contractor Examination Practice Questions

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2026 Statistics

Key Facts: Arizona ROC CR-65 Commercial Glazing Contractor Examination Exam

AZ CR-65

Test Code

PSI / AZ ROC Bulletin

60 Questions

Official Question Count

PSI Content Outline

150 Minutes

Time Allowed

PSI Testing Schedule

70%

Passing Score

AZ ROC Board

Prepare for the Arizona ROC CR-65 Commercial Glazing Exam with 100 practice questions covering GANA rules, IBC safety glazing code, curtain wall pressure plates, structural silicone, wind load math, and OSHA 1926.

Sample Arizona ROC CR-65 Commercial Glazing Contractor Examination Practice Questions

Try these sample questions to test your Arizona ROC CR-65 Commercial Glazing Contractor Examination exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1During flat glass manufacturing via the float process, molten glass is floated on a bath of molten metal to create uniform thickness and high optical clarity. Which metal is utilized in the float bath, and which side of the finished glass retains trace elements of this metal?

A.Molten lead; atmosphere side

B.Molten tin; tin side (bottom surface in contact with the bath)

C.Molten zinc; float side

D.Molten aluminum; top surface

Explanation: In the float glass process invented by Pilkington, molten glass ribbon floats over a bath of molten tin at approximately 1,000°C. The bottom surface of the glass comes into direct contact with the tin bath and absorbs micro-quantities of tin (tin side), which can be detected under ultraviolet light and is critical when applying specialized coatings or ceramic frit.

2According to ASTM C1048 and the GANA Glazing Manual, what is the required surface compression range for heat-strengthened (HS) glass?

A.1,500 psi to 3,000 psi

B.3,500 psi to 7,500 psi

C.10,000 psi to 15,000 psi

D.Greater than 20,000 psi

Explanation: Per ASTM C1048, heat-strengthened glass must have a surface compression between 3,500 psi and 7,500 psi (24 to 52 MPa). Heat-strengthened glass is approximately twice as strong as annealed float glass and breaks in a large, linear pattern similar to annealed glass, which keeps it in the frame opening longer than fully tempered glass.

3What minimum surface compression rating must fully tempered (FT) glass meet under ASTM C1048 to qualify as safety glazing?

A.3,500 psi

B.5,000 psi

C.10,000 psi

D.16,000 psi

Explanation: ASTM C1048 requires fully tempered glass to have a minimum surface compression of 10,000 psi (69 MPa) or an edge compression of not less than 9,700 psi. This high surface compression gives fully tempered glass 4 to 5 times the strength of annealed glass and causes it to dice into small, relatively harmless pebble-like fragments upon impact.

4Annealed float glass can fracture when subjected to a sudden temperature differential across its surface of approximately 75°F (24°C). What temperature differential can fully tempered glass withstand without thermal shock failure?

A.100°F to 125°F

B.150°F to 200°F

C.400°F to 500°F

D.800°F to 1,000°F

Explanation: Fully tempered glass has excellent resistance to thermal stress and can withstand temperature differentials of 400°F to 500°F (200°C to 260°C) across its surface without breaking. This thermal resistance makes fully tempered glass essential for high solar absorption applications and commercial vision lites exposed to extreme desert heating in Arizona.

5Spontaneous breakage occurring months or years after installation in fully tempered glass installed on building facades is most frequently caused by which microscopic contaminant inclusion?

A.Ferrous oxide (Fe2O3)

B.Nickel Sulfide (NiS)

C.Sodium silicate crystals

D.Calcium carbonate nodules

Explanation: Nickel Sulfide (NiS) inclusions are microscopic particles that can form during raw glass melting. During heat tempering, NiS inclusions are trapped in a high-temperature alpha phase; over time, they expand as they revert to the room-temperature beta phase, creating localized tensile stress that can trigger sudden, spontaneous breakage in fully tempered glass. Heat soak testing (EN 14179 / ASTM C1582) is used to mitigate this risk.

6Which interlayer material offers significantly higher stiffness and structural load-bearing capacity than standard Polyvinyl Butyral (PVB), making it preferred for open-edge glass railings and overhead glass canopies?

A.Standard Polyethylene (PE) film

B.SentryGlas (Ionoplast / SGP interlayer)

C.Ethylene Vinyl Acetate (EVA)

D.Liquid Cast Acrylic resin

Explanation: Ionoplast interlayers (such as Kuraray SentryGlas / SGP) are up to 100 times stiffer and 5 times more tear-resistant compared to standard PVB interlayers. SGP allows laminated glass to behave almost monolithically under wind load and maintains post-breakage structural integrity even if both glass lites fracture.

7In a dual-pane Insulating Glass Unit (IGU) installed in a hot, cooling-dominated desert climate like Phoenix, Arizona, on which glass surface should a solar-control Low-E coating ideally be placed to minimize solar heat gain?

A.Surface #1 (exterior face of outer lite)

B.Surface #2 (interior face of outer lite)

C.Surface #3 (exterior face of inner lite)

D.Surface #4 (interior face of inner lite)

Explanation: In cooling-dominated climates, solar-control Low-E coatings are placed on Surface #2 (the inside surface of the exterior lite). This allows solar radiation to be reflected outward before entering the IGU cavity, significantly lowering the Solar Heat Gain Coefficient (SHGC). Placing soft-coat Low-E on Surface #1 is prohibited as exposure to weather degrades the coating.

8Commercial dual-sealed Insulating Glass Units (IGUs) utilize two distinct sealants around the perimeter spacer bar. What is the primary function of the polyisobutylene (PIB) primary seal vs. the secondary silicone seal?

A.PIB provides structural strength; silicone provides moisture barrier

B.PIB serves as the moisture vapor barrier and gas seal; silicone provides structural adhesion and UV stability

C.PIB cushions setting blocks; silicone prevents glass-to-glass contact

D.PIB is decorative black tape; silicone is the sole functional seal

Explanation: In dual-seal IGUs, polyisobutylene (PIB) is applied continuously along the spacer sides as the primary seal to act as an impermeable moisture vapor barrier and hold argon gas. The secondary sealant (typically silicone or polyurethane) provides structural strength, holding the glass lites together and resisting UV degradation and thermal stress.

9Per the GANA Glazing Manual, what is the minimum recommended air space clearance between the back of opacified spandrel glass and the face of building insulation to prevent severe heat trap and thermal fracture?

A.1/4 inch (6 mm)

B.1/2 inch (12 mm)

C.2 inches (50 mm)

D.6 inches (150 mm)

Explanation: GANA recommends maintaining a minimum 2-inch (50 mm) ventilated air cavity between the interior face of spandrel glass (or ceramic frit opacifier) and the insulation backpan. Trapping heat against dark spandrel glass can elevate cavity temperatures beyond 180°F, creating severe thermal stress that requires heat-strengthened or fully tempered glass.

10Prior to heat tempering or laminating glass, why is it mandatory to perform edge seaming or grinding on cut float glass?

A.To increase light transmission through glass edges

B.To remove sharp micro-cracks, nicks, and score vents that cause thermal stress breakage in the tempering furnace

C.To reduce glass thickness to fit standard frame stops

D.To create a rough surface for structural silicone adhesion

Explanation: Glass cutting leaves micro-fissures, sharp score lines, and edge vents. When subjected to intense thermal expansion inside the tempering furnace (approx 1,150°F), these edge imperfections act as stress risers that cause the glass lite to shatter inside the furnace. Seaming or grinding removes these micro-flaws.

About the Arizona ROC CR-65 Commercial Glazing Contractor Examination Exam

The Arizona ROC CR-65 Commercial Glazing examination tests candidates on commercial glass installation, curtain wall and storefront systems, structural silicone glazing, IBC Chapter 24 safety glazing compliance, load calculations, sloped glass, fire-rated assemblies, and OSHA jobsite safety.

Assessment

60 multiple-choice questions administered online or at PSI testing centers

Time Limit

150 minutes

Passing Score

70%

Exam Fee

$66 (Arizona Registrar of Contractors (AZ ROC) / PSI Services)

Arizona ROC CR-65 Commercial Glazing Contractor Examination Exam Content Outline

25%

General Glazing

15 of 60 items on the official PSI content outline. Glass types and properties, handling, setting blocks, bite and edge clearance, and glazing methods.

22%

Glass Systems

13 of 60 items on the official PSI content outline. Insulating glass units, storefronts, curtain wall, sloped glazing and glass doors.

17%

Code Requirements

10 of 60 items on the official PSI content outline. IBC Chapter 24 safety glazing hazardous locations, wind load design and labeling.

12%

Safety

7 of 60 items on the official PSI content outline. OSHA 29 CFR 1926 glass handling, rigging, suction lifters, cuts and fall protection.

10%

Metal Framing

6 of 60 items on the official PSI content outline. Aluminum framing members, anchors, thermal breaks, tolerances and assembly.

Plastics/Acrylics

5 of 60 items on the official PSI content outline. Acrylic and polycarbonate glazing, expansion allowance and fastening.

Sealant Installations

4 of 60 items on the official PSI content outline. Sealant types, joint design, backer rod, tooling and compatibility.

How to Pass the Arizona ROC CR-65 Commercial Glazing Contractor Examination Exam

What You Need to Know

Passing score: 70%
Assessment: 60 multiple-choice questions administered online or at PSI testing centers
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 CR-65 Commercial Glazing Contractor Examination Study Tips from Top Performers

1Memorize setting block rules: 80–90 Durometer Shore A, located at 1/4 points (or 1/8 points minimum 4" from corner), length minimum 4" or 0.1" per sq ft of glass area.

2Know IBC 2406.4 hazardous locations by heart, including doors, panels within 24" of doors, shower enclosures, and low-lying glass (<18" AFF, >9 sq ft).

3Understand Glass Type Factors (GTF) under ASTM E1300: Annealed = 1.0, Heat-Strengthened = 2.0, Fully Tempered = 4.0.

4Master joint sealant geometry: 2:1 width-to-depth ratio for elastomeric sealants, two-cloth cleaning method, and structural silicone (neutral-cure only, never acetoxy on metal/laminated glass).

5Review OSHA 1926 fall protection trigger heights (6 ft), scaffold guardrail height (38-45 in), scaffold planking gaps (max 1 in), and A-frame glass storage lean angles (5 to 7 degrees).

Frequently Asked Questions

What is the passing score for the AZ ROC CR-65 exam?

Candidates must achieve a score of at least 70% (42 correct answers out of 60 questions) to pass the CR-65 trade exam.

How much time is allowed for the AZ ROC CR-65 exam?

Candidates are given 150 minutes to complete the 60-question exam, online or at a PSI testing center.

What reference books are allowed during the PSI trade exam?

Allowed references typically include the GANA Glazing Manual, IBC (International Building Code), Code of Federal Regulations OSHA 1926, and manufacturer technical manuals as approved by PSI.

Is the CR-65 license suitable for both commercial and residential glazing?

The CR-65 classification is a Commercial Glazing license in Arizona. Arizona also has dual license classifications (such as K-65 or R-65 for residential), but CR-65 specifically authorizes commercial glazing construction.

100+ Free Arizona ROC CR-65 Commercial Glazing Contractor Examination Practice Questions

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