Ontario Building Code Exam: Fire Protection

Under the 2024 Ontario Building Code, what is the major occupancy classification for a public library?

• AGroup A, Division 3 (Assembly)
• BGroup A, Division 2 (Assembly)
• CGroup D (Business and Personal Services)
• DGroup C (Residential)

A department store is classified under which major occupancy group in the 2024 Ontario Building Code?

• AGroup E (Mercantile)
• BGroup D (Business and Personal Services)
• CGroup F, Division 2 (Medium Hazard Industrial)
• DGroup A, Division 2 (Assembly)

Which major occupancy classification applies to an apartment building under the 2024 Ontario Building Code?

• AGroup C (Residential)
• BGroup B, Division 3 (Care)
• CGroup A, Division 2 (Assembly)
• DGroup D (Business and Personal Services)

Under the 2024 OBC, an office building containing standard business suites is classified under which group?

• AGroup D (Business and Personal Services)
• BGroup E (Mercantile)
• CGroup F, Division 3 (Low Hazard Industrial)
• DGroup C (Residential)

What is the occupancy classification of a repair garage under the 2024 Ontario Building Code?

• AGroup F, Division 2 (Medium Hazard Industrial)
• BGroup F, Division 3 (Low Hazard Industrial)
• CGroup F, Division 1 (High Hazard Industrial)
• DGroup E (Mercantile)

Which of the following is classified as a Group B, Division 2 occupancy under the 2024 Ontario Building Code?

• AA hospital
• BA detention center
• CA retirement home
• DA boarding house

Under the 2024 OBC, an elementary school is classified under which of the following occupancy groups?

• AGroup A, Division 2
• BGroup A, Division 1
• CGroup D
• DGroup B, Division 3

Which major occupancy classification is assigned to a theatre or cinema designed for showing movies?

• AGroup A, Division 1
• BGroup A, Division 2
• CGroup A, Division 3
• DGroup E

A wood-working shop with significant paint-spraying and high dust levels is classified under which occupancy group?

• AGroup F, Division 1 (High Hazard Industrial)
• BGroup F, Division 2 (Medium Hazard Industrial)
• CGroup F, Division 3 (Low Hazard Industrial)
• DGroup E (Mercantile)

A retirement home where occupants receive daily assistance with activities of daily living but do not require medical treatment is classified under which division?

• AGroup B, Division 3 (Care)
• BGroup B, Division 2 (Care and Treatment)
• CGroup C (Residential)
• DGroup B, Division 1 (Detention)

What is the occupancy classification of an arena or stadium designed for sporting events?

• AGroup A, Division 4
• BGroup A, Division 3
• CGroup A, Division 2
• DGroup A, Division 1

Which division of Group B is designated for detention occupancies where security measures restrict movement?

• AGroup B, Division 1
• BGroup B, Division 2
• CGroup B, Division 3
• DGroup C

What construction type is required for a building under Article 3.2.2.20. of the 2024 Ontario Building Code?

• ANoncombustible construction
• BCombustible construction
• CHeavy timber construction
• DEncapsulated mass timber construction

Under the 2024 OBC, a building is considered of combustible construction if it does NOT meet the requirements for:

• ANoncombustible construction
• BHeavy timber construction
• CFire-rated construction
• DEncapsulated mass timber construction

For a building classified as a Group C major occupancy, up to 3 storeys in building height and sprinklered, what is the minimum required fire-resistance rating for floor assemblies under Article 3.2.2.55. of the 2024 OBC?

• A45 minutes
• B1 hour
• C2 hours
• DNo rating required

Under the 2024 OBC, a building is classified as a Group D major occupancy. If it is 2 storeys in building height, not sprinklered, and faces one street, what is the maximum area allowed for combustible construction under Article 3.2.2.62.?

• A1,000 m2
• B1,500 m2
• C2,000 m2
• D2,400 m2

Under Article 3.2.2.51. of the 2024 OBC, a Group C occupancy building may be constructed up to 6 storeys using combustible construction. Which of the following conditions must be met?

• AThe building must be fully sprinklered, have a 1-hour fire-resistance rating for floor as…
• BThe building must be sprinklered but can have 45-minute floor assemblies.
• CThe building does not need sprinklers if all framing is heavy timber.
• DThe building must be of noncombustible construction only.

According to the 2024 OBC, what is the maximum building height permitted for a Group A, Division 2 assembly occupancy building of combustible construction that is NOT sprinklered, faces one street, and has a building area of 1,200 m2?

• A1 storey
• B2 storeys
• C3 storeys
• DNot permitted at this area size

A multi-occupancy building contains a Group A, Division 2 restaurant on the first floor and Group C apartments on the upper floors. Under Article 3.2.2.4., how is the building classification determined for structural fire protection?

• AThe requirements for the occupancy with the most stringent limits (highest safety require…
• BEach storey is classified and designed independently based on its own occupancy.
• CThe Group A, Division 2 classification dictates the structural requirements because it is…
• DThe Group C classification dictates the requirements because it represents the larger tot…

A building contains a Group F, Division 1 (High Hazard Industrial) occupancy. Under Article 3.2.2.75. of the 2024 OBC, what is the maximum height and area allowed if the building is of combustible construction and not sprinklered?

• A1 storey, 800 m2, and it need not be sprinklered
• B2 storeys, 1,000 m2, not sprinklered
• C3 storeys, 1,200 m2, sprinklered
• DCombustible construction is not permitted for Group F, Division 1 occupancies

What is the primary function of a firewall under the 2024 Ontario Building Code?

• ATo divide a building into separate buildings for fire safety and restrict the spread of f…
• BTo support structural columns and loads in a noncombustible building.
• CTo prevent the transmission of sound between adjacent suites.
• DTo act as a retaining wall on a property boundary.

Under the 2024 OBC, what is the required fire-resistance rating of a firewall that divides a residential building (Group C)?

• A2 hours
• B1 hour
• C3 hours
• D4 hours

A fire separation that is required to have a fire-resistance rating must be:

• AContinuous throughout the assembly and fire-stopped at all penetrations.
• BConstructed of concrete or masonry only.
• CEquipped with sprinkler heads on both sides.
• DDouble-sheathed with gypsum board regardless of construction.

What is the fire protection rating required for a closure (such as a door) in a 1-hour fire separation?

• A45 minutes
• B1 hour
• C20 minutes
• D1.5 hours

What device is required to automatically restrict the passage of smoke and fire through a duct that penetrates a fire separation?

• AA fire damper
• BA draft stop
• CA smoke alarm
• DA backdraft shutter

Under the 2024 OBC, what is the required fire-resistance rating for a fire separation between a public corridor and a residential suite?

• A1 hour
• B45 minutes
• C2 hours
• DNo rating is required if the corridor is sprinklered

Under the 2024 OBC, which of the following materials is classified as a noncombustible material?

• AConcrete
• BGypsum board with paper backing
• CFire-retardant-treated wood
• DGlass-fiber insulation with asphalt binder

What is the minimum fire-resistance rating required for a service room containing a boiler or furnace in a Part 3 building?

• A1 hour
• B2 hours
• C45 minutes
• DNo rating required if fully sprinklered

Under Table 3.1.3.1. of the 2024 OBC, what is the required fire separation between a Group C (Residential) major occupancy and a Group E (Mercantile) major occupancy in the same building?

• A2 hours
• B1 hour
• C3 hours
• DNo separation is required if sprinklered

Under the 2024 OBC, what is the required fire protection rating for a door closure in a 2-hour fire separation?

• A1.5 hours
• B1 hour
• C2 hours
• D45 minutes

What is the fire protection rating required for a closure in a firewall that has a 2-hour fire-resistance rating?

• A1.5 hours
• B2 hours
• C1 hour
• D3 hours

According to the 2024 OBC, a firewall dividing a Group F, Division 1 occupancy must have a fire-resistance rating of not less than:

• A4 hours
• B2 hours
• C3 hours
• D1 hour

Under the 2024 OBC, which of the following is required to ensure the structural stability of a firewall?

• AIt must remain standing after structural collapse of the building on either side due to a…
• BIt must be constructed of wood frame with double layers of drywall.
• CIt must be anchored to the roof structure of both sides.
• DIt must contain no penetrations whatsoever.

When combustible piping is used in a building required to be of noncombustible construction, what is the maximum flame-spread rating permitted for the piping under Article 3.1.9.4.?

• A25
• B50
• C75
• D150

What is the minimum required fire-resistance rating of a fire separation between a public corridor and a storage room in a Group C building?

• A1 hour
• B45 minutes
• C2 hours
• DNo rating required

Which of the following is true regarding a firewall under Article 3.1.10.2. of the 2024 OBC?

• AIt must extend from the foundation to the underside of the roof deck or above the roof li…
• BIt must be constructed only of reinforced masonry.
• CIt cannot have any doors or openings.
• DIt must be covered in gypsum board on both sides.

Under the 2024 OBC, what is the maximum area of wired glass permitted in a door closure in a 1-hour fire separation?

• A0.065 m2
• B0.2 m2
• C0.4 m2
• D1.2 m2

What is the required fire-resistance rating of a fire separation between a public corridor and an exit stairway under the 2024 OBC?

• ASame rating as the exit enclosure (minimum 1 hour or 2 hours)
• B45 minutes
• C2 hours in all cases
• DNo rating required if the corridor has sprinklers

Under the 2024 OBC, a service room containing an incinerator must be separated from the rest of the building by a fire separation with a rating of not less than:

• A2 hours
• B1 hour
• C3 hours
• D4 hours

A horizontal fire separation is required to have a 1-hour fire-resistance rating. What is the fire-resistance rating required for the columns supporting this assembly?

• AAt least 1 hour
• B45 minutes
• C2 hours
• DNo rating is required if they are structural steel

A building contains a Group A, Division 2 assembly occupancy and a Group B, Division 2 treatment occupancy. According to Table 3.1.3.1., what is the required major occupancy fire separation rating between these two zones?

• A2 hours
• B1 hour
• C3 hours
• DNot permitted in the same building

Under the 2024 OBC, what is the maximum area of a glass block assembly permitted in a 1-hour fire separation?

• A10 m2
• B1.2 m2
• C5.0 m2
• DGlass blocks are not permitted in a 1-hour fire separation

A service shaft contains high-voltage cables and passes through four storeys of a building. Under Article 3.6.3.1., how must the shaft be separated from the rest of the building?

• ABy a service space enclosed by fire separations with a fire-resistance rating equal to th…
• BBy a 45-minute fire separation.
• CBy a noncombustible wall with no fire-resistance rating.
• DBy a 2-hour firewall.

What is the fire protection rating required for a fire damper installed in a 1.5-hour fire separation?

• A1 hour
• B1.5 hours
• C45 minutes
• D2 hours

A firewall has a 2-hour fire-resistance rating. Under Article 3.1.10.4. of the 2024 OBC, what is the minimum height of the parapet required above the roof surface?

• A150 mm
• B900 mm
• C450 mm
• DNo parapet is required for a 2-hour firewall

What does the term 'limiting distance' refer to in the 2024 Ontario Building Code?

• AThe distance from an exposing building face to a property line or center line of a street.
• BThe maximum travel distance from a point in a building to an exit.
• CThe height limit of a building based on combustible construction.
• DThe minimum spacing between two fire hydrants.

What is an 'exposing building face' under the 2024 OBC?

• AAny exterior wall of a building that faces a property line or street.
• BThe front facade of a building only.
• CThe interior wall separating a suite from a corridor.
• DA wall that is constructed directly on a property line.