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100+ Free MS Glass and Glazing Practice Questions

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2026 Statistics

Key Facts: MS Glass and Glazing Exam

70%

Passing Score

PSI MS Contractor Bulletin 4/23/2026

45 Q

Official Exam Questions

PSI MS Contractor Bulletin 4/23/2026

2 hours

Time Allowed

PSI MS Contractor Bulletin 4/23/2026

$120

PSI Exam Fee

PSI MS Contractor Bulletin 4/23/2026

Open book

Exam Format

PSI MS Contractor Bulletin 4/23/2026

MS Glass and Glazing PSI trade exam: 45 questions, 70% pass, 2 hours, fee $120. Open-book MSBOC classification (bulletin 4/23/2026).

Sample MS Glass and Glazing Practice Questions

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

1In architectural glazing, what does "bite" mean?
A.The depth of glass edge captured in the frame rabbet or gasket pocket
B.The air space between the two lites of an insulating glass unit
C.The gap between the glass edge and the bottom of the rabbet
D.The thickness of the structural silicone bead on the glass face
Explanation: Bite is the amount of glass edge captured by the frame, gasket, or structural sealant. Adequate bite keeps the lite from walking out under wind suction and helps transfer load into the framing. Edge clearance is a different dimension: the gap from the glass edge to the rabbet bottom or stop.
2Per GANA-type glazing practice, where should the two setting blocks under a rectangular lite normally be placed?
A.Tight against each vertical jamb to lock the corners
B.Stacked at midspan so the transom sees one concentrated reaction
C.Under the head member to keep the lite from dropping
D.At the approximate quarter points of the sill, equally spaced from the glass centerline
Explanation: Two identical setting blocks are placed at the sill quarter points so dead load is shared and the transom or sill does not sag at midspan. The blocks stay equally distant from the centerline. They support the lite; they do not go at the head.
3A 60 in by 120 in lite is set on two setting blocks. Using the common metal-system rule of 0.1 in of block length per square foot of glass, but not less than 4 in, what length should each block be?
A.3 in
B.4 in
C.5 in
D.12 in
Explanation: Area is (60 × 120) ÷ 144 = 50 sq ft. Required length is 0.1 × 50 = 5 in per block. That exceeds the 4 in minimum, so use 5 in blocks of compatible elastomeric material.
4A storefront takeoff lists eight vision lites, each 48 in wide by 60 in high. What is the total glass area to order, in square feet?
A.160 sq ft
B.240 sq ft
C.320 sq ft
D.2,304 sq ft
Explanation: Each lite is (48 × 60) ÷ 144 = 20 sq ft. Eight lites total 160 sq ft. Always divide square inches by 144 before multiplying by quantity.
5Why must a glass lite be free to "float" in the opening rather than be hard-set against the metal on all four edges?
A.To let the glass expand, contract, and rotate slightly without edge contact that causes breakage
B.To allow the lite to be removed later without cutting the gaskets
C.To increase the visible glass area beyond the specified sightline
D.To eliminate the need for setting blocks
Explanation: Glass and framing move at different rates with temperature and load. Edge and face clearance, plus resilient setting and edge blocks, keep the lite centered so it does not bear on metal. Hard contact at an edge is a common cause of thermal and mechanical breakage.
6What is the primary purpose of edge clearance around a lite?
A.To hide the IGU spacer from outdoor view
B.To increase the structural bite used for wind-load resistance
C.To create a capillary path that holds water in the rabbet
D.To provide space for thermal movement and keep the glass edge off the frame
Explanation: Edge clearance is the gap between the glass edge and the rabbet. It absorbs size tolerance, thermal movement, and framing deflection so the edge never bears on metal. Bite is a separate dimension that captures the glass; weeps, not tight clearance, handle water.
7A typical 1/4 in monolithic lite is detailed with 3/8 in bite and 1/4 in edge clearance. What minimum rabbet depth is required to provide both dimensions?
A.3/8 in
B.1/2 in
C.5/8 in
D.1 in
Explanation: Rabbet depth must equal bite plus edge clearance: 3/8 in + 1/4 in = 5/8 in. A shallower pocket steals bite or clearance. These are common GANA-aligned values for 1/4 in glass; always confirm the glass and framing manufacturers' pocket chart.
8What Shore A hardness is commonly specified for elastomeric setting blocks (neoprene, EPDM, or silicone) in metal glazing systems?
A.20 ± 5
B.40 ± 5
C.85 ± 5
D.100 (Shore D)
Explanation: GANA-aligned practice and major fabricators specify setting-block hardness of Shore A 85 ± 5. That range is firm enough to carry dead load without crushing, yet resilient enough to avoid point-loading the glass edge. Much softer blocks creep; rigid plastic or Shore D materials can chip the edge.
9Why must weep holes in a wet-glazed or insulating-glass pocket remain open after setting blocks and sealant are installed?
A.To pressurize the IGU cavity and keep the desiccant dry
B.To provide the only source of indoor ventilation for the room
C.To lock the setting blocks so they cannot move to quarter points
D.To drain water that enters the glazing pocket to the exterior
Explanation: Glazing pockets are expected to get some water. Weeps, kept clear of sealant and blocks, drain that water to the exterior before it sits on the IGU edge or corrodes the frame. Setting blocks should be shaped or placed so they do not dam the sill.
10A field crew needs to trim 1/2 in off a fully tempered lite that arrived 1/2 in too wide. What is the correct action?
A.Reject or reorder the lite; fully tempered glass cannot be cut after tempering
B.Score and break the lite on a cutting table as with annealed glass
C.Grind the edge with an abrasive blade until it fits the opening
D.Heat the edge with a torch and snap the trim strip off
Explanation: Fully tempered glass is heat-treated after it is cut to size. Scoring, sawing, or grinding through the surface compression layer will shatter the lite. Cut, seam, and fabricate annealed glass first, then temper. Order the correct size.

About the MS Glass and Glazing Exam

Mississippi Glass, Glazing, Windows and Skylights Contractor Examination is a classification trade examination administered by PSI for the Mississippi State Board of Contractors. The official open-book exam has 45 questions, a 70% passing standard, and 2 hours allowed. PSI examination fee is $120 per portion (bulletin updated 4/23/2026). This English-language MCQ bank is a study aid for the official content outline; it is not an official PSI form, does not replace the required Law and Business Management exam, and is not a substitute for MSBOC application review or the official open-book examination.

Questions

45 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

$120 (PSI Services LLC (for Mississippi State Board of Contractors))

MS Glass and Glazing Exam Content Outline

27%

General Glazing

General glazing practices

22%

Glass Systems

Glass types and glazing systems

9%

Plastics/Acrylics

Plastic and acrylic glazing

9%

Sealant Installations

Glazing sealants

11%

Safety

Glazing safety

22%

Code Requirements

Code requirements for glass and openings

How to Pass the MS Glass and Glazing Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 45 questions
  • Time limit: 2 hours
  • Exam fee: $120

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

MS Glass and Glazing Study Tips from Top Performers

1Study only the approved references listed for this classification in the current PSI Mississippi Contractor bulletin (updated 4/23/2026)
2Practice open-book navigation with permanent tabs and indexes before test day
3Drill OSHA 29 CFR 1926 topics that appear across nearly every trade outline
4Confirm MSBOC classification scope and eligibility at msboc.us before scheduling with PSI
5All applicants must also pass Law and Business Management unless it is waived

Frequently Asked Questions

How many questions are on the MS Glass and Glazing exam?

The official PSI examination has 45 scored questions (plus possible unscored experimental items). Passing is 70% within 2 hours.

How much does the MS Glass and Glazing exam cost?

PSI lists $120 per examination portion (Candidate Information Bulletin updated 4/23/2026). MSBOC application fees are separate: $400 commercial or $50 residential. Additional classifications are $100 each.

Is the Mississippi contractor exam open book?

Yes. PSI administers MSBOC classification exams as open book. Only bulletin-listed approved references are allowed; temporary tabs such as Post-it notes are prohibited.

Do I still need the Law and Business Management exam?

Yes. MSBOC requires the Mississippi Law and Business Management exam (50 questions, 70%, 2 hours) of all applicants. Reciprocity may waive a trade exam in some cases but does not waive Law and Business.