ICC G13 National Standards Residential Building Contractor (C) Exam Quiz Welcome to your free ICC G13 National Standards Residential Building Contractor (C) Exam Quiz REQUIRED - Enter your email address to receive a printable copy of your test results. 1. Every dwelling unit must have at least one habitable room with a minimum floor area of not less than: 70 square feet 100 square feet 120 square feet 150 square feet None 2. Habitable rooms, hallways, corridors, bathrooms, and laundry rooms in a residential dwelling must have a minimum ceiling height of: 6 feet, 8 inches 7 feet, 0 inches 7 feet, 6 inches 8 feet, 0 inches None 3. An emergency escape and rescue opening (egress window) must have a minimum net clear opening area of ________ (except for grade-floor openings, which are allowed to be 5.0 square feet). 4.0 square feet 5.0 square feet 5.7 square feet 6.0 square feet None 4. To ensure occupants can easily escape during a fire, the maximum sill height of an emergency egress window above the finished floor is: 36 inches 42 inches 44 inches 48 inches None 5. Smoke alarms are required to be installed in all of the following locations EXCEPT: Inside each sleeping room Outside each separate sleeping area in the immediate vicinity of the bedrooms On each additional story of the dwelling, including basements Inside the attached garage None 6. Where an attached garage is separated from the residence, the separation wall on the garage side must be protected with a minimum of: 1/2-inch regular gypsum board 5/8-inch Type X gypsum board 3/8-inch wood structural panels 1/2-inch cement board None 7. For a standard residential stairway, what is the maximum allowable riser height and minimum allowable tread depth? 7.0-inch max riser ; 11-inch min tread 7.5-inch max riser ; 10-inch min tread 7.75-inch max riser ; 10-inch min tread 8.0-inch max riser ; 9-inch min tread None 8. Guards (guardrails) are required on porches, balconies, or raised floor surfaces that are located more than ________ above the floor or grade below. 18 inches 24 inches 30 inches 36 inches None 9. When a guard is required on a residential balcony, the minimum required height of the guard is: 34 inches 36 inches 38 inches 42 inches None 10. Footings must be supported on undisturbed natural soils or engineered fill. The bottom of the footing must extend below the frost line, and in all cases, must be at least ________ below the undisturbed ground surface. 6 inches 12 inches 18 inches 24 inches None 11. Foundation sill plates must be anchored to the foundation wall with 1/2-inch minimum diameter anchor bolts. The maximum allowable spacing between these bolts is: 4 feet on center 6 feet on center 8 feet on center 10 feet on center None 12. Enclosed under-floor spaces (crawl spaces) must be ventilated to prevent moisture buildup. The minimum net area of ventilation openings must be not less than 1 square foot for each ________ of under-floor space area. 100 square feet 150 square feet 300 square feet 500 square feet None 13. When framing a floor, the ends of the wood floor joists must have a minimum bearing of ________ on wood or metal. 1.0 inch 1.5 inches 2.0 inches 3.0 inches None 14. When drilling holes in solid sawn wood floor joists for plumbing or electrical routing, the hole must not be located within ________ of the top or bottom edge of the joist. 1 inch 1.5 inches 2 inches 3 inches None 15. Any wood stud in an exterior load-bearing wall may be cut or notched to a depth not exceeding ________ of its width. 25% 40% 50% 60% None 16. Fireblocking must be installed in combustible concealed locations (like stud walls) to cut off drafts. Horizontally, this fireblocking must be installed at intervals not exceeding: 8 feet 10 feet 12 feet 16 feet None 17. Buildings with combustible ceiling or roof construction must have an attic access opening if the attic area exceeds 30 square feet and has a vertical height of 30 inches or more. The rough-framed access opening must be a minimum of: 20 inches by 24 inches 22 inches by 30 inches 24 inches by 36 inches 30 inches by 30 inches None 18. In masonry veneer wall construction (like brick siding), weep holes must be provided just above the flashing. The maximum spacing between these weep holes is: 16 inches on center 24 inches on center 33 inches on center 48 inches on center None 19. Asphalt shingles shall only be used on roof slopes of ________ or greater. 1 unit vertical in 12 units horizontal (1:12) 2 units vertical in 12 units horizontal (2:12) 3 units vertical in 12 units horizontal (3:12) 4 units vertical in 12 units horizontal (4:12) None 20. In areas with a history of ice forming along the eaves causing a backup of water, an ice barrier must be installed under the shingles. This barrier must extend from the lowest edges of the roof to a point at least ________ inside the exterior wall line of the building. 12 inches 18 inches 24 inches 36 inches None Prove you are human Time is Up!