B2 Commercial Building Inspector Quiz by mike.stahl | May 22, 2026 Welcome to your B2 Commercial Building Inspector Quiz Name Email 1. ________ must be provided with an active latch bolt that will secure the door when it is closed. Both leaves of pairs of side-hinged swinging fire doors Single side-hinged swinging fire doors Both A and B Neither A nor B None Show Hint Unless otherwise specifically permitted, single side-hinged swinging fire doors and both leaves of pairs of side-hinged swinging fire doors shall be provided with an active latch bolt that will secure the door when it is closed. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 716 Opening Protectives. 716.2 Fire door assemblies. 716.2.6 Fire door hardware and closers. 716.2.6.2 Latch required. 2. For fire-resistance purposes, 1/2 inch of unsanded gypsum plaster is equivalent to ________ of Portland cement sand plaster. 3 inch 4 inch 2 inch 1 inch None Show Hint For fire-resistance purposes, 1/2 inch (12.7 mm) of unsanded gypsum plaster shall be deemed equivalent to 3/4 inch (19.1 mm) of one-to-three gypsum sand plaster or 1 inch (25 mm) of Portland cement sand plaster. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 719 Fire-resistance Requirements for Plaster. 719.2 Plaster equivalents. 3. Where rolling type fire shutters are installed, the shutters must not have automatic-closing devices. True False None Show Hint Where fire shutters of the rolling type are installed, such shutters shall include approved automatic-closing devices. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 716 Opening Protectives. 716.2 Fire door assemblies. 716.2.6 Fire door hardware and closers. 716.2.8 Rolling fire shutters. 4. Ramped aisles that serve as part of an accessible route must have a maximum slope of ________ . 1 unit vertical in 24 units horizontal 1 unit vertical in 12 units horizontal 1 unit vertical in 8 units horizontal 1 unit vertical in 16 units horizontal None Show Hint Aisles that are sloped more than 1 unit vertical in 20 units horizontal (5-percent slope) shall be considered to be a ramped aisle. Ramped aisles that serve as part of an accessible route in accordance with Sections 1009 and 1109.2 shall have a maximum slope of 1 unit vertical in 12 units horizontal (8-percent slope). The slope of other ramped aisles shall not exceed 1 unit vertical in 8 units horizontal (12.5-percent slope). 2024 IBC – Chapter 10, Means of Egress. Section 1030 Assembly. 1030.14 Assembly aisle walking surfaces. 1030.14.1 Ramped aisles. 5. A ________ is a continuous membrane, either vertical or horizontal, such as a wall, floor or ceiling assembly, that is designed and constructed to restrict the movement of smoke. smokeproof enclosure smoke compartment smoke damper smoke barrier None Show Hint SMOKE BARRIER. A continuous membrane, either vertical or horizontal, such as a wall, floor or ceiling assembly, that is designed and constructed to restrict the movement of smoke. 2024 IBC – Chapter 2, Definitions. Section 202, Definitions. 1 out of 3 6. In locations where drinking fountains are primarily for childrens use, drinking fountains for standing children are permitted to provide the spout at a min. of ________ above the floor. 40 inches 20 inches 10 inches 30 inches None Show Hint Exceptions: 2. Where drinking fountains are primarily for childrens use, drinking fountains for people using wheelchairs shall be permitted to comply with the childrens provisions in ICC A117.1 and drinking fountains for standing children shall be permitted to provide the spout at 30 inches (762 mm) minimum above the floor. 2024 IBC – Chapter 11, Accessibility. Section 1110 Other Features and Facilities. 1110.7 Drinking fountains. 1110.7.1 Minimum number. 7. Inlets to masonry chimneys must have a thimble of ________ that prevents the connector from pulling out of the inlet or from extending beyond the wall of the liner. rigid refractory material fireclay metal A through C None Show Hint Inlets to masonry chimneys shall enter from the side. Inlets shall have a thimble of fireclay, rigid refractory material or metal that will prevent the connector from pulling out of the inlet or from extending beyond the wall of the liner. 2024 IBC – Chapter 21, Masonry. Section 2113 Masonry Chimneys. 2113.17 Inlet. 8. In a covered mall, the horizontal separation between kiosks and other structures within the mall must be a min. of ________ . 30 feet 20 feet 10 feet 40 feet None Show Hint Kiosks and similar structures (temporary or permanent) located within the mall of a covered mall building or within the perimeter line of an open mall building shall meet the following requirements: 1. Combustible kiosks or other structures shall not be located within a covered or open mall unless constructed of any of the following materials: 1.1. Fire-retardant-treated wood complying with Section 2303.2. 1.2. Foam plastics having a maximum heat release rate not greater than 100 kW (105 Btu/h) when tested in accordance with the exhibit booth protocol in UL 1975 or when tested in accordance with NFPA 289 using the 20 kW ignition source. 1.3. Aluminum composite material (ACM) meeting the requirements of Class A interior finish in accordance with Chapter 8 when tested as an assembly in the maximum thickness intended. 2. Kiosks or similar structures located within the mall shall be provided with approved automatic sprinkler system and detection devices. 3. The horizontal separation between kiosks or groupings thereof and other structures within the mall shall be not less than 20 feet (6096 mm). 4. Each kiosk or similar structure or groupings thereof shall have an area not greater than 300 square feet (28 m2). 2024 IBC – Chapter 4, Special Detailed Requirements Based on Occupancy and Use. Section 402, Covered Mall and Open Mall Buildings. 402.6 Interior finishes and features. 402.6.2 Kiosks. 9. Door closers and door stops are permitted to be ________ minimum above the floor. 80 inches 64 inches 72 inches 78 inches None Show Hint Exception: Door closers, overhead doorstops, frame stops, power door operators, and electromagnetic door locks shall project into the door opening height not lower than 78 inches (1980 mm) above the floor. 2024 IBC – Chapter 10, Means of Egress. Section 1010 Doors, Gates and Turnstiles. 1010.1 General. 1010.1.1 Size of doors. 1010.1.1.1 Projections into clear opening. 10. Which of the following occupancies include the use of a building for the gathering of persons for purposes of civic, social or religious functions? Group R Group B Group C Group A None Show Hint Assembly Group A occupancy includes, among others, the use of a building or structure, or a portion thereof, for the gathering of persons for purposes such as civic, social or religious functions; recreation, food or drink consumption or awaiting transportation. 2024 IBC – Chapter 3, Occupancy Classification and Use. Section 303, Assembly Group A. 303.1 Assembly Group A. 2 out of 3 11. Masonry units can be ___________. solid Both A and B Neither A nor B hollow None Show Hint MASONRY UNIT. Hollow. A masonry unit whose net cross-sectional area in any plane parallel to the load-bearing surface is less than 75 percent of its gross cross-sectional area measured in the same plane. Solid. A masonry unit whose net cross-sectional area in every plane parallel to the load-bearing surface is 75 percent or more of its gross cross-sectional area measured in the same plane. 2024 IBC – Chapter 2, Definitions. Section 202, Definitions. 12. Which of the following is an example of a building projection? eave overhangs exterior balconies A through C cornices None Show Hint Cornices, eave overhangs, exterior balconies and similar projections extending beyond the exterior wall shall conform to the requirements of this section and Section 1405. Exterior egress balconies and exterior exit stairways and ramps shall comply with Sections 1021 and 1027, respectively. Projections shall not extend any closer to the line used to determine the fire separation distance than shown in Table 705.2. Exception: Buildings on the same lot and considered as portions of one building in accordance with Section 705.3 are not required to comply with this section for projections between the buildings. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 705 Exterior Walls. 705.2 Projections. 13. Exterior walls with a fire separation distance less than or equal to ________ must be rated for exposure to fire from both sides. 10 feet 15 feet 5 feet 20 feet None Show Hint Exterior walls shall be fire-resistance rated in accordance with Table 601, based on the type of construction, and Table 705.5, based on the fire separation distance. The required fire-resistance rating of exterior walls with a fire separation distance of greater than 10 feet (3048 mm) shall be rated for exposure to fire from the inside. The required fire-resistance rating of exterior walls with a fire separation distance of less than or equal to 10 feet (3048 mm) shall be rated for exposure to fire from both sides. 2024 IBC – Chapter 7, Fire and Smoke Protection Features. Section 705 Exterior Walls. 705.5 Fire-resistance ratings. 14. Valves controlling the water supply for ________ on all sprinkler systems shall be electrically supervised by a listed fire alarm control unit. waterflow switches A through C pumps tanks None Show Hint Valves controlling the water supply for automatic sprinkler systems, pumps, tanks, water levels and temperatures, critical air pressures and waterflow switches on all automatic sprinkler systems shall be electrically supervised by a listed fire alarm control unit. Exceptions: 1. Automatic sprinkler systems protecting one- and two-family dwellings. 2. Limited area sprinkler systems in accordance with Section 903.3.8. 3. Automatic sprinkler systems installed in accordance with NFPA 13R where a common supply main is used to supply both domestic water and the automatic sprinkler system, and a separate shutoff valve for the automatic sprinkler system is not provided. 4. Jockey pump control valves that are sealed or locked in the open position. 5. Control valves to commercial kitchen hoods, paint spray booths or dip tanks that are sealed or locked in the open position. 6. Valves controlling the fuel supply to fire pump engines that are sealed or locked in the open position. 7. Trim valves to pressure switches in dry, preaction and deluge sprinkler systems that are sealed or locked in the open position. 8. Underground key or hub gate valves in roadway boxes. 2024 IBC – Chapter 9, Fire Protection and Life Safety Systems. Section 903 Automatic Sprinkler Systems. 903.4.1 Sprinkler system supervision and alarms. 15. The occupant load of a shop used for educational purposes, must be determined by dividing the floor area by a factor of one occupant per ________ net area. 30 square feet 50 square feet 10 square feet 7 square feet None Show Hint A shop for educational purposes must be determined by dividing the floor area by a factor of one occupant per 50 square feet, net area. 2024 IBC – Chapter 10, Means of Egress. Section 1004 Occupant Load. Table 1004.5 Maximum Floor Area Allowances Per Occupant. 3 out of 3 Previous Start Quiz Next Time's up
