A one-storey Part 9 hardware store is a single open sales room of 480 m². The owner adds one storage mezzanine of 120 m² inside it. The space under the mezzanine stays open, and on the mezzanine floor there is nothing but a guard: no walls or partitions. For the building-height rules of Div. B Section 9.10., how is the mezzanine treated?

Not as a storey, since an open one may cover up to 40 % of the room.

As a storey, since any mezzanine floor adds a storey to building height.

As a storey, since it covers more than 10 % of the room's floor area.

Not as a storey, since a single mezzanine level is never counted as one.

A two-storey Part 9 apartment building has an exterior passageway along the second storey that forms part of the means of egress from the upper apartments. What does the Building Code require of the passageway's floor assembly?

A 45 min fire-resistance rating, or noncombustible construction.

A 45 min rating, but only in a building of three storeys.

No rating, since the passageway is outside the building.

A 1 h fire-resistance rating, whatever the passageway is built of.

Two neighbours each build a detached garage at the back of their lots, and the garages are built against each other on the common property line, sharing one wall. Each garage serves only the house on its own lot. What fire protection does the shared wall need?

A fire separation rated at least 45 min.

A firewall built to the Part 3 rules.

A fire separation rated at least 1 h.

No rating, since both buildings are garages.

At a final inspection of a three-storey Part 9 apartment building, an inspector checks a 45 mm solid-core wood door made to CAN/ULC-S113 between the public corridor and an apartment. It has 3 mm gaps at the sides and top and a 12 mm gap under the door. What is the finding?

Not acceptable: the gap under the door may be at most 6 mm.

Acceptable: such a door may have up to 12 mm beneath it.

Not acceptable: the side and top gaps may be at most 1.5 mm.

Acceptable: gap limits apply only to tested and labelled doors.

A new detached house is placed with its side wall at a limiting distance of 0.9 m from the side lot line. The wall has no windows or other openings, wood-stud framing and vinyl siding. What does Div. B 9.10.15.5. require of this exposing building face?

A 45 min fire-resistance rating; the vinyl siding may stay.

No fire-resistance rating, as the face has no openings.

A 45 min rating and metal or other noncombustible cladding.

A 1 h rating with noncombustible framing and cladding.

In a three-storey Part 9 apartment building, a supplier offers a moulded wall and ceiling panel with a surface flame-spread rating of 175. The builder wants it inside the suites, both in the bathrooms and on the living-room walls. Where may it be used?

In the suite bathrooms only, where finishes up to 200 are allowed.

In both places, since anything up to 200 is allowed inside a suite.

In neither place, since every suite wall and ceiling is held to 150.

In neither place, since ceilings inside a suite are held to 25.

A three-storey Part 9 apartment building is required to have a fire alarm system and is not sprinklered. Which of these spaces needs a fire detector under the Part 9 detection rules?

The shared laundry room on the ground floor.

The kitchen inside each dwelling unit.

The bathroom inside each dwelling unit.

The storage closet inside each dwelling unit.

A one-storey Part 9 retail building has an unsprinklered basement, 28 m long and 14 m wide, used for stock. The street runs along the front wall. Which arrangement gives the basement the firefighting access the code requires?

A front-wall window opening 1 100 mm high, 550 mm wide, sill 900 mm.

A rear-wall door 2 000 mm high to the back yard, which has no street frontage.

None; basement access is required only for basements over 600 m² in area.

A front-wall window opening 1 000 mm high, 600 mm wide, sill 900 mm.

BCIN Exam Questions: Fire Protection and Sound

Ten free practice questions on fire protection, fire safety and sound transmission, for the Ontario Building Code (BCIN) exams House 2024 and Small Buildings 2024, which the Ministry of Municipal Affairs and Housing (MMAH) sets and Humber Polytechnic delivers. We group the Part 9 material both exams share into seven study units of our own, and this is Unit B. These are original questions written by TicketPrep from the 2024 Building Code and MMAH's syllabi, not questions from an exam. Each has four options and one correct answer, as every question in our bank does, and each is labelled with the exam or exams whose syllabus it is on. Answer each one before opening the explanation. No account, no email.

01The questions

Direct response · Sub-topic B-1.01 · House and Small Buildings

A one-storey Part 9 hardware store is a single open sales room of 480 m². The owner adds one storage mezzanine of 120 m² inside it. The space under the mezzanine stays open, and on the mezzanine floor there is nothing but a guard: no walls or partitions. For the building-height rules of Div. B Section 9.10., how is the mezzanine treated?
1. As a storey, since any mezzanine floor adds a storey to building height.
2. As a storey, since it covers more than 10 % of the room's floor area.
3. Not as a storey, since an open one may cover up to 40 % of the room.
4. Not as a storey, since a single mezzanine level is never counted as one.
Show the answer

C. Correct. At 25 % of the room this mezzanine is too big for Div. B 9.10.4.1.(1), but Sentence (2) of the same Article still leaves the space above it out of building height: the room's mezzanines take up no more than 40 % of its open floor, and nothing but a guard stands on the mezzanine floor. 120 m² ÷ 480 m² = 25 %, the space below is not enclosed (so nothing is deducted from the room's open area, Note A-3.2.1.1.(3)(a)), and there is only one mezzanine level (Div. B 9.10.4.2.).

Why not the others

A. Div. B 9.10.4.1. lets the space above a mezzanine stay out of the building-height count when the mezzanine is small enough, or large but left open above. At 120 m² in an open 480 m² room, this one qualifies under Sentence (2), so the store stays one storey.

B. 10 % is the limit of Div. B 9.10.4.1.(1), the route that tolerates enclosed space above the mezzanine. Sentence (2) gives a mezzanine that stays open above a much larger allowance, 40 % of the room's open area, and 120 m² is only 25 % of 480 m².

D. Size and openness still count. Div. B 9.10.4.1. keeps a mezzanine out of building height only within its 10 % or 40 % limits; a bigger one, or one over 10 % that is not kept open above, adds a storey. This one passes because 120 m² is 25 % of an open 480 m² room.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.4.1.(1) and (2); Div. B 9.10.4.2.(1); Note A-3.2.1.1.(3)(a)
Direct response · Sub-topic B-1.02 · House and Small Buildings

A two-storey Part 9 apartment building has an exterior passageway along the second storey that forms part of the means of egress from the upper apartments. What does the Building Code require of the passageway's floor assembly?
1. A 45 min rating, but only in a building of three storeys.
2. No rating, since the passageway is outside the building.
3. A 1 h fire-resistance rating, whatever the passageway is built of.
4. A 45 min fire-resistance rating, or noncombustible construction.
Show the answer

D. Correct. Under Div. B 9.10.8.8.(1), the floor of an outdoor passageway that people use to leave the building must either be rated for at least 45 min or be built of noncombustible materials. Div. B 9.10.8.8.(3) relieves only houses with a secondary suite and lone dwelling units with no suite above or below, not an apartment building.

Why not the others

A. Div. B 9.10.8.8.(1) does not depend on building height for an apartment building; the egress passageway of a two-storey one needs 45 min or noncombustible construction just as a three-storey one does.

B. Being outside does not exempt it. Div. B 9.10.8.8.(1) treats an outdoor passageway used to leave the building like a floor: 45 min, or noncombustible construction. For buildings with dwelling units the relief in Div. B 9.10.8.8.(3) reaches only houses with a secondary suite and single dwelling units with no suite above or below, not an apartment building.

C. 1 h is not the figure. Div. B 9.10.8.8.(1) calls for 45 min, and it accepts noncombustible construction in place of the rating.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.8.8.(1) and (3)
Direct response · Sub-topic B-2.02 · House and Small Buildings

Two neighbours each build a detached garage at the back of their lots, and the garages are built against each other on the common property line, sharing one wall. Each garage serves only the house on its own lot. What fire protection does the shared wall need?
1. A firewall built to the Part 3 rules.
2. A fire separation rated at least 1 h.
3. A fire separation rated at least 45 min.
4. No rating, since both buildings are garages.
Show the answer

C. Correct. Div. B 9.10.11.4. deals with exactly this layout: when each owner's garage stands apart from the house it serves but is built against the neighbour's garage, the shared wall on the lot line is not a firewall but a fire separation, and its rating has to be 45 min or more.

Why not the others

A. A party wall on a property line is normally a firewall (Div. B 9.10.11.1.), but Div. B 9.10.11.4. gives garages serving their own houses a lighter rule: a 45 min fire separation.

B. 1 h is what Div. B 9.10.11.2.(1) asks of a party wall between dwelling units in place of a firewall. For two detached garages back to back, Div. B 9.10.11.4. sets 45 min.

D. Being garages does not remove the shared wall from the rules. Div. B 9.10.11.4. asks for a fire separation of at least 45 min between them.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.11.4.(1); Div. B 9.10.11.1.(1); Div. B 9.10.11.2.(1)
Scenario · Sub-topic B-2.03 · House and Small Buildings

At a final inspection of a three-storey Part 9 apartment building, an inspector checks a 45 mm solid-core wood door made to CAN/ULC-S113 between the public corridor and an apartment. It has 3 mm gaps at the sides and top and a 12 mm gap under the door. What is the finding?
1. Acceptable: such a door may have up to 12 mm beneath it.
2. Not acceptable: the gap under the door may be at most 6 mm.
3. Not acceptable: the side and top gaps may be at most 1.5 mm.
4. Acceptable: gap limits apply only to tested and labelled doors.
Show the answer

B. Correct. Div. B 9.10.13.2.(2) limits a 45 mm solid-core wood door used as a closure to 6 mm of clearance beneath and 3 mm at the sides and top. The side and top gaps pass, but 12 mm under the door is twice the limit.

Why not the others

A. Div. B 9.10.13.2.(2) caps the clearance beneath this door at 6 mm, so a 12 mm undercut is too much; a larger gap lets smoke and flame pass under the closure.

C. The side and top gaps are fine: Div. B 9.10.13.2.(2) allows up to 3 mm there. The fault is the 12 mm gap beneath, where the limit is 6 mm.

D. The clearance limits of Div. B 9.10.13.2.(2) are written for exactly this door: a 45 mm solid-core wood door accepted as a closure under Sentence (1) must keep within them, and its 12 mm undercut exceeds the 6 mm limit.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.13.2.(1) and (2); Div. B 9.10.13.3.(1)
Scenario · Sub-topic B-3.02 · House and Small Buildings

A new detached house is placed with its side wall at a limiting distance of 0.9 m from the side lot line. The wall has no windows or other openings, wood-stud framing and vinyl siding. What does Div. B 9.10.15.5. require of this exposing building face?
1. No fire-resistance rating, as the face has no openings.
2. A 45 min fire-resistance rating; the vinyl siding may stay.
3. A 45 min rating and metal or other noncombustible cladding.
4. A 1 h rating with noncombustible framing and cladding.
Show the answer

B. Correct. Div. B 9.10.15.5.(1.1) frees a house face at a limiting distance of 1.2 m or more from any rating; between 0.6 m and 1.2 m it needs a 45 min fire-resistance rating, with no cladding requirement. Only below 0.6 m does Div. B 9.10.15.5.(2) add metal or noncombustible cladding.

Why not the others

A. The rating depends on limiting distance, not on whether the face has openings. Below 1.2 m, Div. B 9.10.15.5.(1.1) asks for a 45 min rating, so this face at 0.9 m needs one.

C. Metal or noncombustible cladding is added by Div. B 9.10.15.5.(2) only where the limiting distance is under 0.6 m. At 0.9 m a 45 min rating is enough and the vinyl siding may stay.

D. A 1 h noncombustible face is a Subsection 9.10.14. requirement for buildings other than houses (Div. B 9.10.14.1.). A house face at 0.9 m needs only a 45 min rating under Div. B 9.10.15.5.(1.1).

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.15.5.(1), (1.1) and (2); Div. B 9.10.15.1.(1); Div. B 9.10.14.1.(1)
Direct response · Sub-topic B-4.01 · House and Small Buildings

In a three-storey Part 9 apartment building, a supplier offers a moulded wall and ceiling panel with a surface flame-spread rating of 175. The builder wants it inside the suites, both in the bathrooms and on the living-room walls. Where may it be used?
1. In the suite bathrooms only, where finishes up to 200 are allowed.
2. In both places, since anything up to 200 is allowed inside a suite.
3. In neither place, since every suite wall and ceiling is held to 150.
4. In neither place, since ceilings inside a suite are held to 25.
Show the answer

A. Correct. Div. B 9.10.17.11.(1) relaxes the limit for wall and ceiling finishes in bathrooms within suites of residential occupancy to a surface flame-spread rating of 200, so 175 is acceptable there. Elsewhere in the suite the general limit of 150 in Div. B 9.10.17.1.(1) governs, and 175 is over it.

Why not the others

B. The 200 figure belongs to bathroom finishes in residential suites (Div. B 9.10.17.11.(1)) and to doors (Div. B 9.10.17.1.(2)); it does not reach living-room walls, which stay under the 150 limit of Div. B 9.10.17.1.(1).

C. The 150 limit of Div. B 9.10.17.1.(1) is the general rule, but Div. B 9.10.17.11.(1) allows up to 200 for bathroom walls and ceilings inside residential suites, so the panel can go in the bathrooms.

D. The limit of 25 applies to ceilings in exits and unsprinklered public corridors (Div. B 9.10.17.2.(1)), not to rooms inside a suite. The bathrooms may take the panel under Div. B 9.10.17.11.(1); the living room may not, because of the 150 limit.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.17.11.(1), 9.10.17.1.(1) and (2), 9.10.17.2.(1)
Direct response · Sub-topic B-4.02 · House and Small Buildings

A three-storey Part 9 apartment building is required to have a fire alarm system and is not sprinklered. Which of these spaces needs a fire detector under the Part 9 detection rules?
1. The kitchen inside each dwelling unit.
2. The shared laundry room on the ground floor.
3. The bathroom inside each dwelling unit.
4. The storage closet inside each dwelling unit.
Show the answer

B. Correct. Div. B 9.10.18.4.(2) lists the spaces that get fire detectors when a fire alarm is required in an unsprinklered building; laundry rooms in residential buildings are on that list unless they are within a dwelling unit, so the shared laundry needs one.

Why not the others

A. Div. B 9.10.18.4.(3) states that the detectors of Sentence (2) are not required in dwelling units, and a kitchen is not a listed space in any case. The listed space here is the shared laundry room.

C. Bathrooms within dwelling units are not on the Div. B 9.10.18.4.(2) list, and Sentence (3) exempts dwelling units from those detectors. The listed space here is the shared laundry room.

D. Storage rooms appear in Div. B 9.10.18.4.(2) only when they are not within dwelling units; one inside a suite is left out. The shared laundry room is the space that needs the detector.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.18.4.(1) to (3)
Direct response · Sub-topic B-4.04 · House and Small Buildings

A one-storey Part 9 retail building has an unsprinklered basement, 28 m long and 14 m wide, used for stock. The street runs along the front wall. Which arrangement gives the basement the firefighting access the code requires?
1. A rear-wall door 2 000 mm high to the back yard, which has no street frontage.
2. None; basement access is required only for basements over 600 m² in area.
3. A front-wall window opening 1 000 mm high, 600 mm wide, sill 900 mm.
4. A front-wall window opening 1 100 mm high, 550 mm wide, sill 900 mm.
Show the answer

D. Correct. Div. B 9.10.20.2.(1) requires an unsprinklered basement over 25 m in length or width (basements of houses with a secondary suite and basements serving one dwelling unit aside) to have direct outdoor access on at least one street side; Sentence (2) accepts a door, window or other opening at least 1 100 mm high and 550 mm wide with its sill no more than 900 mm above the floor. An interior stair reached from outdoors is the other route (Sentence (3)).

Why not the others

A. The basement needs direct outdoor access on at least one street side (Div. B 9.10.20.2.(1)); a door to a back yard with no street frontage does not give firefighters that access.

B. 600 m² is the basement size beyond which Part 9 fire rules hand over to Part 3 (Div. B 9.10.1.3.(3)); the access trigger in Div. B 9.10.20.2.(1) is a length or width over 25 m, and this basement is 28 m long.

C. The opening must be at least 1 100 mm high and 550 mm wide (Div. B 9.10.20.2.(2)); a 1 000 mm height falls short even though the width is generous.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.20.2.(1) to (3), 9.10.1.3.(3)
Calculation · Sub-topic B-5.01 · House and Small Buildings

A new two-storey Part 9 workshop will have a second-storey balcony facing a privately owned 13.8 kV overhead line. The line's owner cannot say how far its conductors swing. What is the minimum horizontal distance from the conductor's at-rest position to the balcony?
1. 2.8 m
2. 3.0 m
3. 4.8 m
4. 5.5 m
Show the answer

C. Correct. Div. B 9.1.1.5. sends a building near overhead conductors to Subsection 3.1.20. For conductors over 750 V up to 46 kV, Div. B 3.1.20.1. requires 3 m from the conductor's maximum swing to the building, balconies included; where a privately owned line's swing is unknown, a swing of 1.8 m is assumed. 1.8 + 3.0 = 4.8 m.

Why not the others

A. This uses the 1 m clearance for conductors of 750 V or less (1.8 + 1.0). A 13.8 kV line falls in the band over 750 V up to 46 kV, which needs 3 m from the maximum swing: 1.8 + 3.0 = 4.8 m.

B. 3 m is the clearance measured from the conductor's maximum swing, not from its at-rest position. With the swing unknown, Div. B 3.1.20.1. assumes 1.8 m, so the distance from the at-rest line is 1.8 + 3.0 = 4.8 m.

D. This uses the 3.7 m clearance for lines over 46 kV up to 69 kV (1.8 + 3.7). At 13.8 kV the clearance is 3 m, so 1.8 + 3.0 = 4.8 m.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.1.1.5.(1) and 3.1.20.1.
Calculation · Sub-topic B-5.03 · House and Small Buildings

A non-loadbearing interior partition in a small office has 38 × 89 mm wood studs at 610 mm on centre, one layer of 12.7 mm Type X gypsum board on each face and an empty cavity. Using the SB-2 component additive method, what fire-resistance rating can be assigned?
1. 25 min
2. 40 min
3. 45 min
4. 65 min
Show the answer

B. Correct. SB-2 2.3.4.(1) sums the fire-side membrane's assigned time and the framing's assigned time, plus any extra protection. SB-2 Table 2.3.4.A. assigns 25 min to 12.7 mm Type X board on a non-loadbearing wall and Table 2.3.4.E. 15 min to wood studs at 610 mm: 25 + 15 = 40 min. The board on the far face adds nothing (SB-2 2.3.5.(1)).

Why not the others

A. 25 min is the membrane's contribution alone. The component additive method of SB-2 2.3.4.(1) also adds the framing time, 15 min for wood studs at 610 mm: 25 + 15 = 40 min.

C. This uses the framing time for wood studs at 406 mm or closer. At 610 mm on centre SB-2 Table 2.3.4.E. assigns 15 min, so the total is 25 + 15 = 40 min.

D. This counts the board on both faces (25 + 25 + 15). SB-2 2.3.5.(1) gives no extra contribution for the membrane on the side away from the fire, so the rating is 25 + 15 = 40 min.

Source: 2024 Ontario Building Code, our Unit B: Fire protection, fire safety and sound; Div. B 9.10.3.1.(1)(b); SB-2 2.3.4.(1) to (3), SB-2 Tables 2.3.4.A. and 2.3.4.E., SB-2 2.3.5.(1)

02Answer key

Question	Answer	Our sub-topic	Exam
Q1	C	Sub-topic B-1.01	House and Small Buildings
Q2	D	Sub-topic B-1.02	House and Small Buildings
Q3	C	Sub-topic B-2.02	House and Small Buildings
Q4	B	Sub-topic B-2.03	House and Small Buildings
Q5	B	Sub-topic B-3.02	House and Small Buildings
Q6	A	Sub-topic B-4.01	House and Small Buildings
Q7	B	Sub-topic B-4.02	House and Small Buildings
Q8	D	Sub-topic B-4.04	House and Small Buildings
Q9	C	Sub-topic B-5.01	House and Small Buildings
Q10	B	Sub-topic B-5.03	House and Small Buildings

Want the rest of Unit B?

The full TicketPrep BCIN Part 9 bank has 84 questions on fire protection, fire safety and sound transmission (84 on the House syllabus, 84 on Small Buildings) and 550 across all seven units, with every option explained the way the ten above are. Its timed mock exams are 70 questions in three hours, scored against the 70 per cent pass mark, for House or for Small Buildings. Try 14 more free in the quiz, no account, or get the full bank for $99 one-time: one BCIN Exam Pass covers all four BCIN exams, House, Small Buildings and the two Legal/Process exams. All-Access ($119) includes the BCIN exams along with every other exam on TicketPrep.

Try 14 free House questions → See the full BCIN bank — $99

120 days of access · 7-day no-questions refund · 120 more days free if you don't pass · not a subscription · Small Buildings free sample

03What Unit B covers

Unit B is Section 9.10 and the parts of Part 3 and the supplementary standards it relies on: building size and height for fire purposes, construction types and fire-resistance ratings, fire separations, closures and fire blocks, spatial separation between buildings and between houses, flame-spread limits, fire alarm and detection, smoke alarms and firefighting access, the Part 3 provisions that Part 9 points to, the SB-2 and SB-3 rating methods, and sound transmission in Section 9.11. It is one of the larger units on both exams, and many of its questions are scenarios: a plan or an inspection finding that has to be measured against a rating, a clearance or a distance.

MMAH publishes, for each exam, the list of Building Code Parts, Sections and Articles it covers, but not how many questions any of them gets. Unit B, its 16 sub-topics below and the right-hand column are TicketPrep's own: the column is how many questions our bank holds on each sub-topic, Standard and Advanced together, not a count from an exam. Our timed mocks draw 12 of their 70 questions from Unit B for House and 11 for Small Buildings; those weights are ours too.

Our sub-topic	In our bank
B-1.01 Application, occupancy classification, ratings and building size (Div. B 9.10.1-9.10.4)	5
B-1.02 Openings, construction types, steel members, fire-resistance and combustibility (9.10.5-9.10.8)	6
B-2.01 Fire separations and smoke-tight barriers (9.10.9)	7
B-2.02 Service rooms, firewalls and fire spread at exterior walls (9.10.10-9.10.12)	6
B-2.03 Doors, dampers and closures; fire blocks (9.10.13, 9.10.16)	7
B-3.01 Spatial separation between buildings (9.10.14)	3
B-3.02 Spatial separation between houses (9.10.15)	3
B-3.03 Part 3 spatial separation referenced from Part 9 (3.2.3)	3
B-4.01 Flame-spread limits (9.10.17)	4
B-4.02 Fire alarm and detection systems (9.10.18, 3.2.4)	9
B-4.03 Smoke alarms (9.10.19)	5
B-4.04 Firefighting provisions, construction camps, gas appliances; Part 3 standpipes, sprinklers, emergency power (9.10.20-9.10.22, 3.2.5-3.2.9)	7
B-5.01 Part 3 general fire provisions: construction, materials, ratings, firewalls (3.1)	5
B-5.02 Building height and building fire safety basics (3.2.1)	3
B-5.03 Fire performance ratings and fire and sound resistance tables (SB-2, SB-3)	8
B-5.04 Sound transmission (9.11)	3

04What the questions turn on

Ratings, clearances and the numbers inside them

Many questions in this unit give a measurement and ask whether it passes: a gap under a closure, a rating on a floor that people use to get out, the rating of a shared garage wall on a lot line. The answer usually depends on one figure from the Article plus a condition that removes or adds the requirement, so check both before choosing.

Spatial separation and limiting distance

For houses, the rule that applies to an exposing building face changes in steps as the limiting distance shrinks: no rating at the far end, a rating at a middle distance, and cladding rules added only when the face is very close to the line. Find the step the face falls in first, then read only what that step asks for.

Detection, finishes and calculated ratings

The Part 9 detection rules list the rooms that get a fire detector when a fire alarm is required, and finishes get a higher flame-spread allowance in suite bathrooms than in the rest of the suite. SB-2 lets a wall's rating be built up from assigned times for its parts, and only the membrane on the fire side counts.

05The other units

Both exams pass at 70 per cent of the whole paper, with no minimum for any topic, so a strong unit can make up for a weak one, but only by so much: on 70 questions, 49 right is the pass line. Each of our units has its own page of free questions:

The BCIN exam practice test page describes the full question bank. How these questions are written and checked: how our questions are made. Found a mistake? Tell us and we will fix it. TicketPrep is not affiliated with MMAH, Humber Polytechnic or the National Research Council of Canada, and no Building Code text is reproduced here: the questions cite Article numbers and explain the requirement in their own words.