Glazier — Red Seal
600 practice questions
Practice questions for the Glazier (Red Seal) exam, organized by Red Seal Occupational Standard (RSOS) section. 600 questions are available across 5 sections, each verified by our own review.
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Sections (RSOS blocks)
| Section | RSOS block | Exam weight | Questions |
|---|---|---|---|
| A | Performs common occupational skills | 17% | 259 |
| B | Fabricates and installs commercial window and door systems | 34% | 121 |
| C | Installs residential window and door systems | 14% | 88 |
| D | Fabricates and installs specialty glass, products and glass systems | 16% | 66 |
| E | Performs servicing | 19% | 66 |
Mock exams are composed to match the official weightings above exactly — the question counts per section don't need to match 1:1.
Practice mock exam
The full practice mock for this trade is 120 questions, a 240-minute time limit, scored against a 70% pass line — the same question style used throughout this bank.
Sample questions
Performs common occupational skills
Before changing the blade on a stationary edger, which action is required to control hazardous energy?
- Switch the tool off and leave it plugged in while changing the blade
- Tag the operator panel and proceed without disconnecting power
- Isolate the energy source, apply lockout, and verify a zero-energy state
- Unplug the cord primarily if the change will take longer than ten minutes
Changing blades, bits, or driver tips on a powered tool exposes the worker to cutting and rotation hazards if the tool restarts. The controlling work practice is to isolate the energy source, apply lockout, and verify zero energy before service. Switching off without isolation leaves stored or accidental energy in play. Tagging alone does not remove energy. Time on the task does not change the requirement — any service that exposes moving parts demands the same control.
RSOS 2020 | A-2.02 Uses portable and stationary power tools
Fabricates and installs commercial window and door systems
A fabricated curtain-wall mullion arrives from the shop with a small fabrication burr on the gasket race. What is the most appropriate response before install?
- Install the mullion and seal over the burr with extra silicone
- Remove or dress the burr per the shop drawing and re-inspect the race before installing the gasket
- Reject the mullion and order a full replacement from the supplier
- Install the mullion with the burr facing the interior to hide it
A burr in the gasket race lifts or cuts the gasket and creates a leak path through the seal. The proportional response is to dress the burr per the shop drawing, re-inspect the race for cleanliness and profile, and only then seat the gasket. Sealing over the burr leaves the gasket compromised. Replacing the full mullion is disproportionate to a dressable defect. Hiding the burr on the interior side ignores that the seal performance does not care which side the defect faces.
RSOS 2020 | B-7.01 Fabricates curtain walls
Installs residential window and door systems
Which federal code is the recognized authority for residential window and door installation in housing and small buildings?
- Manufacturer instructions primarily, with limited national code reference
- the applicable Canadian building code Part 4 (Structural Design) as the governing residential authority
- A provincial code as the national authority over residential glazing
- the applicable Canadian building code 2020, Division B, Part 9 (Sections 9.6, 9.7, 9.8)
Residential glazing in housing and small buildings falls under the applicable Canadian building code 2020 Division B Part 9, with Section 9.6 covering glass, Section 9.7 covering windows, doors and skylights, and Section 9.8 covering safety-glazing locations at stairs, ramps, and guards. Manufacturer instructions are required for the product but do not replace the code basis. Part 4 governs Part 3 buildings, not Part 9 housing. Provincial codes adopt the applicable Canadian building code but are not the national authority.
RSOS 2020 | C-9.01 Lays out residential window systems