ExAC Section 2 Sample Exam — 5 Free Questions

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Section 2 covers Theme 5 of the ExAC blueprint and focuses entirely on the National Building Code of Canada 2020 (NBC 2020) and the National Energy Code for Buildings (NECB). It is the only ExAC section where candidates are permitted to bring a tabbed copy of the NBC into the exam room. The full exam consists of 80 multiple-choice questions over three hours. Questions test your ability to navigate the code quickly and accurately across occupancy classification, fire safety, means of egress, barrier-free accessibility, structural loading, and energy performance requirements for Canadian buildings.

These five sample questions reflect the range of topics and code references you will encounter in the full Section 2 exam. Strong performance here depends less on memorization and more on knowing where to find each requirement in the NBC and understanding how individual clauses apply to specific building scenarios. After each question, the rationale identifies the relevant code clause and explains the correct reasoning. The full Issued for Interns study guide includes NBC tab guides, annotated code references, and full-length timed Section 2 mock exams.

Practise with your tabbed NBC open beside you — Section 2 rewards knowing where to look, not memorizing clauses. Every question in this sample is written and reviewed by licensed Canadian architects to give you a sense of what you will face on exam day.

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Section 2 sample questions & answer explanations

Here are all five Section 2 sample questions in full. Read each question, choose your answer, then expand the explanation to see the correct choice and the reasoning behind it — the same detailed rationale included with every question in the full study guide.

  1. Question 1Theme 5

    The NBC 2020 is organized into three Divisions. Which correctly identifies all three?

    • ADivision A — Objectives & Functional Statements; Division B — Acceptable Solutions; Division C — Administrative Provisions
    • BDivision 1 — Technical Requirements; Division 2 — Administrative; Division 3 — Commentary
    • CPart 3 — Fire/Safety; Part 4 — Structural Design; Part 9 — Small Buildings
    • DDivision A — Prescriptive Rules; Division B — Performance Objectives; Division C — Enforcement
    Show answer & explanation

    Correct answer: A

    The NBC 2020 is organized into three Divisions: Division A (Objectives and Functional Statements — the 'why' behind every requirement), Division B (Acceptable Solutions — the prescriptive technical requirements architects use daily), and Division C (Administrative Provisions — permits, inspections, and enforcement for building departments).

  2. Question 2Theme 5

    An architect proposes a design that departs from Division B prescriptive requirements. Which Division enables this compliance pathway, and what must the alternative design satisfy?

    • ADivision C — Administrative Provisions; the alternative must receive a municipal variance
    • BDivision B, Subsection 1.1.2 — the alternative must cite a comparable precedent approved by another AHJ
    • CDivision A — Objectives and Functional Statements; the alternative must achieve at least the same level of performance required by Division A
    • DDivision B, Part 1 — General; the alternative must be confirmed by a licensed structural engineer
    Show answer & explanation

    Correct answer: C

    Division A establishes the Objectives and Functional Statements that underpin every prescriptive requirement in Division B. An Alternative Solution replaces a Division B prescriptive requirement but must still satisfy the relevant Division A objectives. The authority for Alternative Solutions is found in Division A, Subsection 1.2.1, and Division B, Subsection 1.1.2. The AHJ must accept the alternative; a variance is a different legal concept.

  3. Question 3Theme 5

    Which Division of the NBC 2020 governs building permits, inspections, and enforcement — the rules primarily used by municipal building departments?

    • ADivision A — Objectives and Functional Statements
    • BDivision B — Acceptable Solutions
    • CDivision C — Administrative Provisions
    • DDivision B, Part 1 — General (Definitions and Compliance Options)
    Show answer & explanation

    Correct answer: C

    Division C contains the Administrative Provisions — the procedural rules governing permit applications, inspections, and enforcement. These are primarily used by building officials and enforcement officers. Architects work primarily in Division B (prescriptive design requirements) and use Division A when pursuing Alternative Solutions. Division C is not where architects look for technical design rules.

  4. Question 4Theme 5

    Which NBC Division B Part governs building envelope assemblies — including thermal insulation, air barriers, and vapour control?

    • APart 3 — Fire Protection, Occupant Safety and Accessibility
    • BPart 6 — Heating, Ventilating and Air-Conditioning
    • CPart 4 — Structural Design
    • DPart 5 — Environmental Separation
    Show answer & explanation

    Correct answer: D

    Part 5 (Environmental Separation) governs the building envelope — the control of heat, air, vapour, and water movement through exterior building assemblies, including walls, roofs, windows, and doors. Thermal insulation values, air barriers, vapour retarders, and condensation resistance all fall within Part 5. Part 6 covers mechanical HVAC systems (not the envelope), and Part 3 covers fire protection and life safety.

  5. Question 5Theme 5

    The NBC 2020 is described as 'a floor, not a ceiling.' What does this mean in practice for an architect working in a municipality that requires 1,200 mm wide exit corridors, while the NBC requires only 1,100 mm?

    • AApply the NBC 1,100 mm — the NBC takes precedence over municipal bylaws as a federal standard
    • BApply the municipal 1,200 mm — the NBC sets minimum national standards; local regulations may always be more restrictive
    • CApply the lower value (1,100 mm) to reduce project costs, since both values are within acceptable range
    • DRequest a provincial ruling to determine which standard applies in cases of conflict
    Show answer & explanation

    Correct answer: B

    The NBC is a minimum national standard — a 'floor.' Provincial codes, zoning bylaws, and local regulations can always be MORE restrictive than the NBC. The architect must always apply the most restrictive applicable requirement. Here, the municipal requirement (1,200 mm) is more restrictive than the NBC minimum (1,100 mm) — so the municipal requirement governs. The NBC does not supersede local requirements that exceed it.

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