100+ Free NCCER Glazier Practice Questions

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Question 1

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Which PPE is required at all times on a glazing jobsite when handling glass?

Cotton work gloves only

ANSI Z87.1 safety glasses, cut-resistant gloves, hard hat, and safety boots

Tinted sunglasses and sneakers

Dust mask and knee pads

to track

2026 Statistics

Key Facts: NCCER Glazier Exam

Training Levels

NCCER Glazier curriculum (Levels 1-4)

~680 hr

Total Training

Classroom plus on-the-job hours across all levels

~15%

Glass Types Weight

Largest single domain on 2026 NCCER Glazier content

~$25-$50

Per Module Fee

NCCER 2026 (varies by Accredited Training Sponsor)

6 ft

OSHA Fall Trigger

29 CFR 1926 Subpart M (construction)

Lifetime

Credential Validity

NCCER Registry (no expiration)

NCCER Glazier is a 4-level craft credential (~680 hours) from the National Center for Construction Education and Research covering architectural glass, curtain wall, storefront, entrance doors, and interior glazing. Content spans glass types (~15%), curtain wall (~11%), tools (~10%), storefront (~10%), sealants (~8%), OSHA safety (~8%), entrance doors (~8%), installation methods (~6%), plan reading (~6%), quality/LEED (~6%), skylights (~5%), math (~5%), and interior glass (~5%). Module fees run ~$25-$50 each; requires an NCCER Accredited Training Sponsor (union JATC or contractor program).

Sample NCCER Glazier Practice Questions

Try these sample questions to test your NCCER Glazier exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which PPE is required at all times on a glazing jobsite when handling glass?

A.Cotton work gloves only

B.ANSI Z87.1 safety glasses, cut-resistant gloves, hard hat, and safety boots

C.Tinted sunglasses and sneakers

D.Dust mask and knee pads

Explanation: OSHA and NCCER require ANSI Z87.1-rated safety glasses, cut-resistant gloves (typically ANSI A4 or higher), ASTM-rated hard hats, and steel/composite-toe safety boots whenever handling glass. Glass edges and shards are a primary laceration hazard; eye protection is mandatory at all times in the work area.

2At what height does OSHA require fall protection for construction workers?

A.4 feet

B.10 feet

C.6 feet

D.20 feet

Explanation: OSHA 29 CFR 1926.501 requires fall protection for construction workers at heights of 6 feet or more above a lower level. General industry standard is 4 feet; construction is 6 feet. Acceptable systems include guardrails, safety nets, or personal fall arrest systems (PFAS).

3What is the 4:1 ladder rule?

A.Four workers per ladder

B.Base of ladder should be 1 foot out for every 4 feet of working height

C.Ladder must extend 4 feet above landing and support 1x rated load

D.Ladders are inspected every 4 weeks by 1 supervisor

Explanation: The 4:1 rule (or 75-degree angle rule) states that the base of an extension ladder should be placed 1 foot away from the wall for every 4 feet of vertical rise to the support point. This produces the proper stable climbing angle and is required by OSHA 1926.1053.

4OSHA's respirable crystalline silica PEL for construction is?

A.50 µg/m³ as an 8-hour TWA

B.500 µg/m³ as a ceiling

C.5 mg/m³ as an 8-hour TWA

D.1 mg/m³ as a 15-min STEL

Explanation: Under 29 CFR 1926.1153, OSHA's Permissible Exposure Limit (PEL) for respirable crystalline silica is 50 µg/m³ as an 8-hour time-weighted average. Cutting, grinding, or drilling masonry for anchor installation can expose glaziers to silica; Table 1 specifies engineering controls (water or vacuum dust collection) and required respiratory protection.

5The proper technique for lifting a heavy glass lite with a partner is to?

A.Grip edges with bare hands, twist waist, and lift

B.Use suction cups, bend at knees, keep back straight, lift in unison on a count

C.Hold only the top rail and let the bottom slide

D.One person lifts while another guides with a pry bar

Explanation: NCCER lifting technique: use mechanical aids (suction cups, glass carts, or lifters), bend at the knees, keep the back straight, hold the load close to the body, and lift in unison on a verbal count. This reduces back strain and prevents dropped-glass incidents.

6A scaffold platform must be fully planked and support what multiple of the maximum intended load?

A.1 times

B.2 times

C.4 times

D.10 times

Explanation: OSHA 1926.451 requires each scaffold and scaffold component to support, without failure, its own weight and at least 4 times the maximum intended load. Suspension scaffold ropes must support 6 times the maximum intended load. Platforms must be fully planked with no more than 1-inch gaps.

7A Job Hazard Analysis (JHA) or JSA is performed?

A.After an accident occurs

B.Before starting a task to identify hazards and controls

C.Only by the safety manager annually

D.Only for tasks above 100 feet

Explanation: A Job Hazard Analysis (JHA), also called Job Safety Analysis (JSA) or Activity Hazard Analysis (AHA), is performed BEFORE starting a task. It breaks the job into steps, identifies hazards for each step, and specifies controls. All affected workers must be briefed and sign on.

8When transporting glass lites on-site, they should be stored?

A.Flat on the ground stacked horizontally

B.On edge, slightly tilted (3-5°) against a padded A-frame or glass rack

C.Leaned against any vertical wall

D.In direct sunlight to warm before install

Explanation: Glass is stored on edge with a slight lean (typically 3-5° or 1 inch per foot of height) against a padded A-frame or glass rack with wood/rubber separators between lites. Flat stacking risks breakage from point loading and is almost impossible to safely retrieve without breakage.

9Standard float glass produced by the Pilkington process is also called?

A.Tempered glass

B.Annealed glass

C.Laminated glass

D.Fire-rated glass

Explanation: Float glass made by the Pilkington process (floating molten glass on a tin bath) is produced in an annealed state. Annealed glass is the base product that can then be further processed — tempered (heat-strengthened by rapid cooling), heat-strengthened, laminated, or coated.

10Tempered glass is approximately how many times stronger than annealed glass of the same thickness?

A.2 times

B.4-5 times

C.10 times

D.Same strength, just safer when broken

Explanation: Fully tempered glass (ASTM C1048) is approximately 4 to 5 times stronger than annealed glass of the same thickness due to induced surface compression. It also breaks into small cube-like pieces, reducing laceration risk — meeting safety-glazing requirements under CPSC 16 CFR 1201.

About the NCCER Glazier Exam

The NCCER Glazier credential validates competency to install and service architectural glass, curtain wall, storefront, entrance doors, skylights, and interior glass. The 4-level curriculum (~680 hours) covers glass materials (annealed, heat-strengthened, tempered ASTM C1048, laminated ASTM C1172, insulating glass units), curtain wall systems (Kawneer, EFCO, Tubelite, YKK AP — stick-built and unitized, two- and four-sided structural silicone glazing), storefronts (center-set, offset, flush), sealants and silicones (Dow 795/995, Pecora 890, weatherseal primers, EPDM/neoprene gaskets), OSHA 1926 safety (Subpart M fall protection, Subpart L scaffolds, Subpart CC rigging), entrance hardware (panics, closers, pivots, ADA), installation methods (dry, wet, pocket, channel), plan reading, math, quality control (AAMA 501/502/503, NFRC, ENERGY STAR, IECC), skylights and sloped glazing, and interior partitions. Requires enrollment with an NCCER Accredited Training Sponsor.

Questions

100 scored questions

Time Limit

Module-by-module written tests (~1-2 hours each) plus performance profiles

Passing Score

Module-specific minimum score set by NCCER (typically 70-75%)

Exam Fee

~$25-$50 per module test plus sponsor fees (NCCER 2026 — verify current schedule) (National Center for Construction Education and Research (NCCER))

NCCER Glazier Exam Content Outline

~15%

Glass Types & Materials

Annealed, heat-strengthened, tempered (ASTM C1048 — Kind FT fully tempered, Kind HS heat-strengthened), laminated (ASTM C1172 — PVB and SGP ionoplast interlayers), insulating glass units (ASTM E2190, argon/krypton fills, soft-coat low-E), wired/Georgian, spandrel, fire-rated (Pyran, Pyrostop), acoustic laminated (STC/OITC), self-cleaning TiO2, electrochromic, CPSC 16 CFR 1201 safety glazing Category I (< 9 sq ft) vs Category II (≥ 9 sq ft).

~11%

Curtain Wall Systems

Stick-built vs unitized, pressure-equalized rainscreen, two-sided and four-sided structural silicone glazing (SSG), Kawneer 1600/2500, EFCO 960/E-Wall, Tubelite T14000, YKK AP YHC 300; dead load anchors at slab edge, thermal expansion joints, pressure plates and cover caps, shear block vs screw spline fabrication, AAMA 501 water/air/structural lab testing, AAMA 503 curtain wall field testing.

~10%

Glazier Tools & Equipment

Glass suction cups (Wood's, Bohle), glass lifters (MRT, GGR, Smartlift) with vacuum capacity ratings, putty and glazing knives, score wheels/cutters, snap and running pliers, setting blocks at quarter points, edge blocks, structural silicone pumps, backer rod, aluminum miter saws, laser levels, mullion plumb bobs, PPE — cut-resistant Kevlar sleeves and gloves (ANSI A4/A5), ANSI Z87.1 safety eyewear.

~10%

Storefront Systems

Center-set, offset, and flush glazing; Kawneer Trifab VersaGlaze 451/601, EFCO 403, Tubelite 400, YKK AP YES 45 FI; 1-3/4" and 2" × 4-1/2" profiles; screw spline vs shear block; sill flashing, end dams, weep systems; polyamide thermal breaks (Azon, Technoform); dry glazing with EPDM gaskets vs wet glazing; anodized AAMA 611 vs painted AAMA 2605 (PVDF Kynar) finishes.

~8%

Sealants, Gaskets & Silicones

Structural silicones (Dow 795, Dow 995, Pecora 890, Sika SG-500) for SSG; weatherseal silicones (Dow 791, Pecora 895NST); polyurethane vs silicone for expansion joints; butyl primary seal in IGUs; EPDM/neoprene/silicone gaskets; backer rod types (closed-cell, open-cell, bi-cellular); bond-breaker tape; two-sided adhesion (never three-sided); hourglass joint design; concave tooling; primer/OS1-OS3 compatibility.

~8%

OSHA Safety & Fall Protection

OSHA 29 CFR 1926 Subpart M fall protection (6 ft trigger in construction), personal fall arrest system (full-body harness, lanyard, anchor 5,000 lb rated), guardrail 42" ±3" top rail, Subpart L scaffolds, Subpart X ladders, Subpart CC cranes/rigging for glass lifts, silica standard 29 CFR 1926.1153 Table 1, HAZCOM SDS for silicones/primers, lockout/tagout, broken glass handling, MEWP ANSI A92.20 aerial lift.

~10%

Entrance Doors

Medium-stile 3.5" and wide-stile 5" aluminum entrance doors (Kawneer 350/500, YKK AP 35D/50D), narrow-stile, butt hinges vs continuous geared hinges vs offset pivots, closers (LCN 4040XP, Norton 1601), panic hardware (Von Duprin 99/98, Corbin ED5000), electric strikes, mag-locks/access control, ADA/ICC A117.1 — 10 lb max exterior opening force, 5 lb interior, ½" max threshold, 18" pull-side clearance.

~6%

Installation Methods

Dry glazing with EPDM gaskets, wet glazing with structural silicone, channel glazing, pocket setting with setting blocks at the quarter points, edge clearance and face clearance minimums, bite depth for SSG (6-12 mm typical), glazing tape, cap bead vs heel bead, lockstrip gaskets, substrate cleaning (isopropyl alcohol), primer application, mullion plumbing and shimming, sequencing.

~6%

Plan Reading & Blueprints

A-series architectural, S-series structural, M-series mechanical drawings; section cuts vs plan views; glass type schedules (GL-1 through GL-X); door and hardware schedules; mullion elevations; thermal break callouts; AAMA 2605 finish specs; symbols and line weights; dimensioning to face of block/stud/finish; AutoCAD/Revit shop drawings; RFIs and submittal logs.

~6%

Quality Control & LEED

AAMA/WDMA/CSA 101/I.S.2/A440 NAFS performance grade, AAMA 501.1 dynamic water, AAMA 502 residential field water, AAMA 503 curtain wall field, mock-up testing, LEED v4.1 EQ Low-Emitting Materials (SCAQMD Rule 1168 sealant VOC limits), Daylight & Views, WELL Building, Living Building Challenge Red List, NFRC U-factor/SHGC/VT labels, ENERGY STAR climate zones, IECC Chapter 4 fenestration U-factor and SHGC requirements by climate zone.

~5%

Skylights & Sloped Glazing

Unit skylights (Velux, Wasco) vs custom sloped glazing; ASTM E283/E330/E547 performance; IBC 2406.4 laminated bottom-lite safety requirement; minimum slope 3:12; condensation gutters; heel bead for water shedding; curb flashing; thermal-break mullions; snow and wind loads per ASCE 7; Kalwall translucent panels; polycarbonate; atria and greenhouse assemblies.

~5%

Glazier Math & Measurement

Fractional-decimal inch conversions, area and perimeter (sq ft of glass, linear ft of sealant), sealant volume (joint width × depth × length; typical ⅜" × ¼" joint yields), mitered mullion angles, Pythagorean theorem for square-check diagonals, Imperial-metric conversions, mixing ratios, structural bolt torque values, tape reading to 1/32", laser distance meters.

~5%

Interior Glass & Partitions

Frameless shower enclosures (tempered ⅜" or ½", CPSC 16 CFR 1201 Category II), mirrors (copper-free, ASTM C1503), glass railings and guards (IBC 2407 requires laminated for guards), demountable office partitions (Modernfold, Haworth Enclose, DIRTT), sliding barn door hardware, back-painted glass, decorative frit/film, switchable privacy glass (SPD, PDLC).

How to Pass the NCCER Glazier Exam

What You Need to Know

Passing score: Module-specific minimum score set by NCCER (typically 70-75%)
Exam length: 100 questions
Time limit: Module-by-module written tests (~1-2 hours each) plus performance profiles
Exam fee: ~$25-$50 per module test plus sponsor fees (NCCER 2026 — verify current schedule)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NCCER Glazier Study Tips from Top Performers

1Memorize CPSC 16 CFR 1201 safety glazing requirements. Category I applies to lights < 9 sq ft and must meet a 150 ft-lb impact; Category II applies to lights ≥ 9 sq ft and must meet 400 ft-lb. Tempered glass (ASTM C1048 Kind FT) and laminated glass (ASTM C1172) are the two most common solutions. Hazardous locations per IBC 2406 include doors, sidelites within 24" of a door, bathtubs/showers, railings, and low sills — all require Category II.

2Structural silicone glazing (SSG) rules — high-yield: always two-sided adhesion (glass-to-silicone, silicone-to-metal), never three-sided (bond breaker tape or backer rod prevents bottom adhesion), bite depth 6-12 mm typical, glue-line thickness 6 mm minimum, substrate cleaning with isopropyl alcohol, primer per manufacturer (Dow 795 uses 1200 Prime Coat when required), structural silicone (Dow 795/995, Pecora 890) never the same as weatherseal (Dow 791, Pecora 895NST).

3OSHA 1926 Subpart M fall protection — construction trigger is 6 ft (general industry is 4 ft under 1910). Personal fall arrest system components: full-body harness, lanyard (6 ft max with deceleration device, or self-retracting lifeline), anchor rated 5,000 lb per worker or engineered system with 2x factor of safety. Guardrail top rail 42" ±3", mid rail 21", toeboard 3.5" minimum. 100% tie-off required when working within 6 ft of an unprotected edge.

4Curtain wall vs storefront — curtain wall is non-load-bearing exterior envelope spanning multiple floors, anchored to slab edge, typically 2-3" deep mullions with thermal breaks, tested to AAMA 501/503. Storefront is ground-floor non-load-bearing, spans single-floor, typically 1-3/4" to 2" deep, not designed for wind loads above the first floor. Common storefronts: Kawneer Trifab VersaGlaze 451/601, YKK AP YES 45 FI, EFCO 403, Tubelite 400.

5ADA accessibility high-yield: exterior door max opening force 10 lb, interior door 5 lb, fire doors per jurisdiction. Threshold max height ½" with 1:2 bevel. Clear opening width 32" minimum (typically 36" door). Pull-side clearance 18" minimum on latch side for perpendicular approach, push side 12" with closer/latch. Lever hardware 34-48" above finished floor. Tempered safety glass required in sidelites within 24" of door.

Frequently Asked Questions

What is the NCCER Glazier certification?

The NCCER Glazier credential is a 4-level competency-based craft certification from the National Center for Construction Education and Research covering the installation and service of architectural glass, curtain wall, storefront, entrance doors, skylights, and interior glass. The curriculum is roughly 680 hours of classroom and on-the-job training delivered through an NCCER Accredited Training Sponsor such as a contractor program, community college, or union JATC.

Who is eligible to enroll in NCCER Glazier training?

There is no degree requirement, but most sponsors prefer a high school diploma or GED. Candidates must enroll with an NCCER Accredited Training Sponsor — a contractor, technical college, or union apprenticeship (such as an IUPAT District Council JATC). Core Curriculum (introductory craft skills in safety, math, tools, plan reading, and materials handling) is a prerequisite before starting Glazier Level 1.

What is the format of the NCCER module tests?

Each NCCER module has a written multiple-choice assessment (paper or NCCERconnect online) typically lasting 1-2 hours, plus a hands-on performance profile evaluated by a certified Craft Instructor. Written tests verify theoretical knowledge across glass types, codes, and methods; performance profiles verify field skills such as cutting glass, setting setting blocks, tooling sealant joints, plumbing mullions, and adjusting door hardware.

How much does the NCCER Glazier certification cost in 2026?

Individual module written tests typically run ~$25-$50 each, with total cumulative module fees of ~$500-$1,500 across all 4 levels. Many union apprentices have fees covered by their local JATC, and employer sponsors often pay fees for their employees. Always confirm current fees with your specific NCCER Accredited Training Sponsor.

How long does it take to complete all 4 levels?

Most apprentices complete one level per year over a 4-year apprenticeship, combining classroom modules with on-the-job training hours. The total curriculum is approximately 680 contact hours. Self-paced and accelerated programs through some community colleges and contractor training centers may be shorter. NCCER credentials are lifetime and entered into the national NCCER Registry for employer verification.

How is the exam scored?

Written module tests use a module-specific minimum score (typically 70-75%) set by NCCER. Trainees must pass both the written assessment and the hands-on performance profile to complete each module. Completion is recorded in the NCCER Registry by the Accredited Training Sponsor and is verifiable by employers using the trainee's NCCER card number.

What are the highest-yield topics?

Highest-yield topics include CPSC 16 CFR 1201 safety glazing categories, ASTM C1048 tempered glass, ASTM C1172 laminated glass, structural silicone glazing with Dow 795/Pecora 890 and bite/bond-breaker requirements, Kawneer/EFCO/Tubelite/YKK AP curtain wall and storefront systems, OSHA 1926 Subpart M fall protection (6 ft trigger, 5,000 lb anchor, 42" guardrail), ADA door opening force (10 lb exterior, 5 lb interior), NFRC/ENERGY STAR labels, and IECC fenestration U-factor/SHGC requirements.

How should I study for this exam?

Work through each NCCER module sequentially using the NCCER Glazier Levels 1-4 trainee guides. Pair classroom study with on-the-job shadowing under a journey-level glazier. Drill glass types (ASTM C1048, C1172), sealant compatibility and joint design, OSHA Subpart M fall protection, curtain wall and storefront systems (Kawneer 451/1600, YKK AP YES 45 FI/YHC 300), door hardware, and plan reading. Complete high-volume practice MCQs on standards and use manufacturer installation manuals (Kawneer, Dow, Pecora) for reference.