BCIN HVAC - House exam practice questions (2024 Ontario Building Code)
The BCIN HVAC - House exam covers Part 6 and Part 9 HVAC for houses: 9.32 ventilation, 9.33 heating and air-conditioning, fire dampers and penetrations, chimneys and fireplaces, Part 11 compliance alternatives, Part 12 and SB-12. BCIN Prep has 180 original practice questions for it, timed 70-question mock exams in the real format, and every answer cites the exact section so you learn where things are in the compendium.
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Exam format (source: Humber BCIN exam FAQ)
- 70 multiple-choice questions, 4 choices each
- 3 hours
- Pass mark 70% (49 correct)
- Open book: Digital 2024 Building Code Compendium via link supplied by Humber (own digital copy not allowed); hard copy recommended as backup
- Online, virtually proctored by Humber Polytechnic; fee CAD 150
Free PDF: BCIN Exam Checklist - format, 4-week study plan, exam-day pacing and a tick-box syllabus map.
Sample HVAC - House questions
From the free set in the app. Try them, then check the answer and the code reference.
1. Section 9.32 (Ventilation) applies to the ventilation of rooms and spaces in which occupancies?
- Residential occupancies
- All Part 9 occupancies
- Only dwelling units with a forced-air heating system
- Residential and business occupancies
Show answer
A. Residential occupancies - 9.32.1.1.(1) and (2)
Residential occupancies; ventilation of all other occupancies must comply with Part 6.
Residential occupancies; ventilation of all other occupancies must comply with Part 6.
2. For Section 9.32, a storage garage serving a residential occupancy may be considered part of that occupancy if it holds up to how many motor vehicles?
- 4
- 3
- 5
- 2
Show answer
A. 4 - 9.32.1.1.(3)
Up to 4 motor vehicles.
Up to 4 motor vehicles.
3. Section 9.33 applies to heating and air-conditioning systems serving:
- Any Part 9 building
- Houses only, never apartments
- Only one dwelling unit (plus radiant heating in houses with a secondary suite)
- Buildings up to 600 m² in area
Show answer
C. Only one dwelling unit (plus radiant heating in houses with a secondary suite) - 9.33.1.1.(1) and (2)
Systems serving only one dwelling unit, and radiant heating in houses with a secondary suite; other systems go to Part 6.
Systems serving only one dwelling unit, and radiant heating in houses with a secondary suite; other systems go to Part 6.
4. In a house with a secondary suite, an air duct distribution system serving one of the dwelling units:
- Shall not be directly interconnected with other parts of the house
- May serve both units if return air is separate
- May serve both units if it has a fire damper
- Must be a hydronic system
Show answer
A. Shall not be directly interconnected with other parts of the house - 9.33.1.1.(3)
It shall not be directly interconnected with other parts of the house.
It shall not be directly interconnected with other parts of the house.
5. Under 6.1.1.1.(2), where the method of operation of an existing HVAC system is altered, which repair or replacement work must conform to the Code?
- Repairs or component replacements that change the capacity or extent of safety of the system
- Every component of the whole system
- Only work over 120 kW
- Only new ductwork
Show answer
A. Repairs or component replacements that change the capacity or extent of safety of the system - 6.1.1.1.(2)
Both conditions must apply: the method of operation is altered AND the repair or component replacement changes the capacity or extent of safety of the system (same two conditions in 9.33.1.1.(2.1)).
Both conditions must apply: the method of operation is altered AND the repair or component replacement changes the capacity or extent of safety of the system (same two conditions in 9.33.1.1.(2.1)).
6. Group C residential occupancies used in winter must have heating able to maintain what indoor air temperature at the outside winter design temperature (Part 6)?
- 21°C
- 18°C
- 22°C
- 20°C
Show answer
C. 22°C - 6.2.1.1A.(1)
22°C (also Group B, Division 2 or 3).
22°C (also Group B, Division 2 or 3).
What the HVAC - House exam covers
Topics as organized in BCIN Prep, following the Ministry's exam syllabus.
| Topic | References |
|---|---|
| Div A - Compliance, application, definitions, objectives | Div A Parts 1-3 (except 1.3.3.2A, 1.3.3.3A, 1.3.3.5.(1)(a)-(h),(i),(l), 1.4.1.3) |
| Div B Parts 1-3 selected (farm, insulation, fire dampers, penetrations, sprinklers) | 1 (except 1.1.3.2), 2.4.1, 3.1.5.14, 3.1.8.4, 3.1.8.10, 3.1.9.2, 3.2.5.12 |
| Part 6 - General, design and installation | 6.1, 6.2 (except 6.2.1.1A.(2), 6.2.1.5.(4), 6.2.1.8) |
| Part 6 - Ventilation, heating appliances, fire safety | 6.3, 6.4 (except 6.4.1.1), 6.9 (except 6.9.1.2, 6.9.1.3) |
| Part 9 - Ventilation (9.32) | 9.32 |
| Part 9 - Heating and air-conditioning (9.33) | 9.33 |
| Part 9 - Windows, egress signs/lighting, fire protection, cottages | 9.7, 9.9.1.3, 9.9.11, 9.9.12, 9.10 selected, 9.37.2.1, 9.37.2.4 |
| Part 9 - Crawl spaces, roof spaces, chimneys, fireplaces, vapour barriers, hot water, electrical, change of use | 9.18 selected, 9.19.1, 9.21.1.1.(2), 9.22.1.4, 9.22.9.4, 9.25.4.3, 9.25.5.1, 9.31.6.1A, 9.34, 9.41 |
| Part 11 compliance alternatives + Part 12 | 11.5 (Tables 11.5.1.1.-A to -F), Part 12 |
| Div C selected (application, permits, alternative solutions, rulings) | Div C 1.1, 1.3.1.1.(1), 1.3.1.4.(1), 1.3.1.5.(1), 1.3.3.2.(1), 2.1, 2.4 |
| Supplementary Standards | SA-1, SB-1, SB-2, SB-12 |
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