Per the IRC, what is the minimum width of a hallway in a one- or two-family dwelling?
B1 Building Planning
Question · Easy
14 on 15, 12 on 20, 10 on 30
Short
According to IRC Section R311.7, what is the maximum riser height permitted for stairways in a dwelling?
What is the minimum ceiling height for habitable rooms per IRC Section R305?
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Per IRC R403.1.4, where the frost line is below the bottom of the footing, what is the minimum depth below undisturbed ground surface for footings?
B1 Foundations
According to IRC Chapter 4, what is the minimum concrete compressive strength for footings, foundation walls, and slabs not exposed to freezing?
Question · Medium
GFCI inspection
Per IRC R602.10, what is the maximum on-center spacing for studs in a load-bearing wall using 2x4 studs supporting one floor, roof, and ceiling?
B1 Wall Construction
According to IRC Section R310, every sleeping room basement must have at least one emergency escape and rescue opening with a minimum net clear opening of:
Per IRC R807.1, what is the minimum size of an attic access opening where access is required to mechanical equipment?
B1 Roof Ceiling
Per IRC R602.10, braced wall panels using continuous wood structural panel sheathing must be sheathed full height with no horizontal joints unless joints occur:
Per IRC R302.6, what is the minimum thickness of gypsum board required for the wall separating an attached garage from the residence?
According to IRC R703, the weather-resistant exterior wall envelope shall include a water-resistive barrier installed behind the exterior cladding. The barrier must be:
Per IRC R905.2, asphalt shingles shall be used only on roof slopes of:
Per IRC R806, what is the minimum net free ventilating area for an attic compared to the area being ventilated?
Question · Hard
Per IRC R302.11, fireblocking in concealed spaces of stud walls shall be installed at what locations?
According to IRC R311.7.8, handrails on stairs shall be installed at a height between:
Per IRC R312.1, guards are required where the walking surface is located more than how many inches above the floor or grade below?
Per IRC R314, smoke alarms in new dwellings must be installed in which locations?
Per IRC R315, where carbon monoxide alarms are required, they shall be installed:
Per IRC R502.6, the minimum end bearing of a wood floor joist on wood or metal is:
B1 Floor Construction
According to IRC R408.1, the underfloor area of a crawl space must be provided with ventilation openings totaling not less than:
Per IRC R401.3, the finished grade shall slope away from foundation walls a minimum of how much within the first 10 feet?
Per IRC R602.7.1, headers in load-bearing walls shall be sized in accordance with the span tables, with a minimum bearing length of:
Per IRC R703.8, masonry veneer requires flashing at all of the following locations EXCEPT:
Per IRC Table R301.5, what is the minimum uniformly distributed live load for residential sleeping rooms?
Per IRC R104, who has the statutory authority to grant modifications when there are practical difficulties involved in carrying out the provisions of the code?
B1 Code Administration
Per NEC 210.52(A), receptacle outlets in dwelling unit habitable rooms shall be installed so that no point along the floor line in any wall space is more than how many feet from a receptacle?
E1 Branch Circuits
Per NEC 210.8(A), GFCI protection is required in dwelling units in all of the following locations EXCEPT:
E1 Gfci Afci
Per NEC 210.12, AFCI protection is required for branch circuits supplying outlets in dwelling unit:
Per NEC 210.11(C)(1), how many 20-ampere small-appliance branch circuits are required for the kitchen, pantry, breakfast room, and dining room receptacles in a dwelling?
Per NEC 210.52(B)(3), countertop receptacles serving an island countertop space must be installed when the long dimension of the island is at least:
Per NEC 230.79, the minimum rating of an ungrounded service-entrance conductor for a one-family dwelling is:
E1 Services
Per NEC 230.70(A)(1), the service disconnecting means must be installed at a readily accessible location either outside or:
Per NEC Table 250.66, the minimum size copper grounding electrode conductor for a service with 200-amp ungrounded conductors is:
E1 Grounding
Per NEC 250.52(A), which of the following is NOT a recognized grounding electrode?
Per NEC 314.16(A), the volume of an outlet box for conductors and devices is calculated using the volume allowance per Table 314.16(B). A duplex receptacle counts as how many conductor volumes?
E1 Conductors Devices
Per NEC 334.30, type NM cable must be supported and secured at intervals not exceeding:
Per NEC 240.4(D), the overcurrent protection for 14 AWG copper conductors is limited to a maximum of:
Per NEC 210.52(E), an outdoor receptacle must be installed at the front and back of a dwelling, accessible from grade and located not more than how many feet above grade?
Per NEC 210.52(F), at least one receptacle outlet for the laundry must be installed and supplied by:
Per NEC 210.11(C)(3), the bathroom branch circuit must be a 20-ampere circuit that supplies:
Per NEC 210.70(A)(1), at least one wall-switch-controlled lighting outlet is required in:
Per NEC 300.5, direct-buried cables or conductors at 120 volts in a residential setting require a minimum cover depth of:
Per NEC 406.4(D), where a receptacle is replaced in a location requiring GFCI protection per the current code, the replacement receptacle must:
Per NEC 250.118, an equipment grounding conductor in a residential branch circuit may be:
Per NEC 408.4, each circuit in a panelboard must be:
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