2018 IRC Home Inspection Flash Cards
In flood hazard areas, enclosed areas below the design flood elevation shall be used solely for:
Parking of vehicles
Building Access
Storage
For new construction, an approved carbon monoxide alarm shall be installed in what location?
Outside of each separate sleeping area in the immediate vicinity of the bedrooms.
Physical interconnection of smoke alarms is not required where ___ ___ alarms are installed.
Listed wireless
Required smoke alarms shall receive their primary power from the building wiring, and when primary power is interrupted, shall receive power from a ___.
Battery
Smoke alarms shall be installed in the following locations:
In each sleeping room
Outside each separate sleeping area
On each additional story of the dwelling
An automatic residential fire sprinkler system is not required where ___ or are made to existing townhouses that do not have an automatic residential fire sprinkler system.
Additions
Alterations
In combustible construction, fire blocking shall be provided to cut off all concealed draft openings and to form an effective fire barrier between ___.
Stories
Unfaced fiberglass batt insulation is ___ to be used for fire blocking.
Permitted
For mechanical system installations in flood hazard areas, ___ ___ openings shall be located at or above the required elevation.
Combustion air
Manually operated vent ___ shall not be installed except in connectors or chimneys serving solid fuel-burning appliances.
Dampers
Polyethylene tubing for hydronic piping systems shall be installed with ___ - ___ joints.
Heat-fusion
Components of a solar thermal energy systems that might be subjected to a vacuum during operation or shutdown shall be protected by ___ ___ ___ unless designed to withstand such a vacuum.
Vacuum relief valves
BTU is the abbreviation for ___ ___ ___, which is the quantity of heat required to raise the temperature of 1 pound of water 1 degrees.
British thermal unit
Vent connectors for draft-hood-equipment appliances shall not be ___ than the draft hood outlet diameter.
Smaller
Bottom fed tank-type water heaters and bottom fed tanks connected to water heaters shall have a ___ ___ valve installed.
Vacuum relief
The design and construction of pools and spas shall comply with the ___.
International Swimming Pool and Spa Code
A ___ - ___ fire sprinkler system shall be separate and independent from the water from the water distribution system.
Stand-alone
___ shall not be installed at the termination of a clothes dryer exhaust duct.
Screens
Where space for a ___ ___ is provided, an exhaust duct system shall be installed.
Clothes dryer
Mechanical appliance installed in attics shall have a luminaire controlled by a switch located at the required ___ ___ and a receptacle outlet provided at or near the appliance location.
Passageway opening
Return air for a forced-air heating or cooling system shall not be taken from ___.
Closets, bathrooms, toilet rooms, kitchens, garages, mechanical rooms, boiler rooms, furnace rooms or unconditioned attic.
Chapter 11 regulates the ___ efficiency for the design and construction of building regulated by this code.
Energy
Braced wall panels shall be constructed with intermittent bracing methods and continuous sheathing methods. Mixing bracing methods shall be ___.
Permitted
Any combination of fixture within two bathroom groups located on the same floor level are ___ to be vented by a horizontal wet vent.
Permitted
Storm drainage sump pumps shall be of a capacity and head appropriate to ___ use requirements.
Anticipated
The marking for identification of disconnecting means shall have the durability to withstand the ___ involved.
Environment
The seismic provisions of the IRC apply to detached one-and two family dwellings in Seismic Design Categories ___.
D0, D1, and D2
The purpose of this code is to establish ___ requirements to safeguard the public safety, health and general welfare.
Minimum
Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most ___ shall govern.
Restrictive
Where a ref8 code or standard includes subject matter that is within the scope of the IRC, the provisions of the ___ shall take precedence.
IRC
An alternative material or method shall be approved where the proposed design is ___ and complies with the ___ of the code.
Satisfactory
Intent
Compliance with the specific ___ -based provisions of the International Codes in lieu of specific requirements of the IRC shall be permitted as an alternative.
Performance
Where equipment replacements and repairs must be performed in an emergency situation, the permit application shall be submitted within the ___ ___ business day.
Next working
An application for a permit for any proposed work shall be deemed to have been abandoned ___ days after the date of filing.
180
Before issuing a permit, the building official is ___ to examine or cause to be examined buildings, structures and sites for which an application has been filed.
Authorized
Where the building official issues a permit, the construction documents shall be approved in writing or by a stamp which states ___ ___ ___ ___.
Reviewed for Code Compliance
Finial inspection shall be made after the permitted work is ___ and prior to ___.
Complete
Occupancy
If located in a flood hazard area, the documentation of elevations required in Section R322.10 shall be submitted to the building official prior to the ___ inspection.
Final
Nonmetallic boxes shall be used only with cabled wiring methods with entirely nonmetallic sheaths, flexible cords and nonmetallic raceways.
True
A permit is not required for the replacement of branch circuit overcurrent devices (breakers) of the required capacity in the same location (within a panel).
True
Unless otherwise recommended by the drain manufacturer, perforated foundation drains shall be surrounded with an approved ___ ___.
Filter membrane
Protection of wood and wood-based products from ___ shall be provided in specified locations by the use of naturally durable wood or wood that is preservative-treated.
Decay
Web holes in steel wall studs shall not exceed ___ inches in width or ___ inches in length.
1.5 inches
4.5 inches
Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a ___ location.
Wet
Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as ___ ___.
Sunlight resistant
Branch circuit rating for space-heating and water-heating appliance shall be considered ___ loads.
Continuous
Underground service laterals that are not encased in concrete and that are buried 18 inches more below grade shall have their location identified by a ___ ___.warning ribbon
Warning Ribbon
All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrode shall be ___.
Accessible
Ceiling-suspended paddle fans shall be supported ___ of an outlet box.
Independently
Recessed incandescent fixtures shall have ___ protection.
Thermal
Receptacles installed on 15 - and 20 -ampere-rated branch circuits shall be of the ___ type.
Grounding
The ___ shall not be considered as an effective ground-fault current path.
Earth
Connected to establish electrical continuity and conductivity.
Bonded (Bonding)
Electrical panel boards and overcurrent devices shall not be located in ___.
Clothes closets, bathrooms or over the steps of a stairway
Bonding shall be provided where necessary to ensure electrical ___.
Continuity
Unused openings in cabinets and panel boards shall be effectively ____ to afford protection equivalent to that of the wall of the cabinet.
Closed
A wall supporting any vertical load in addition to its own weight is a ___ - ___ wall.
Load-bearing
Under-floor plenums shall be ___ in new structures.
Prohibited
Masonry veneer above openings shall be supported on lintels of ___ materials.
Noncombustible
Attics containing mechanical appliances shall be provided with man opening and a clear and unobstructed passageway to allow removal of the ___ appliance.
Largest
A thermal barrier is not required for foam plastic insulation in an attic that is entered only for purposes of ___ or ___.
Repairs
Maintenance
Is plastic composite material permitted for use as exterior stair tread?
Yes
There shall be a floor or ___ at the top and bottom of each stairway.
Landing
Signifies access that requires the removal of an access panel or similar removable obstruction.
Access (to)
Window wells serving emergency escape and rescue openings shall be designed for proper ___.
Drainage
Glazing in all fixed and operable panels of swinging, sliding and bifold doors shall be considered a ___ ___.
Hazardous location
Every dwelling unit shall be provided with a water closets, lavatory, and a ___ or ___.
Bathtub
Shower
A finished or unfinished habitable space within an attic.
Attic, Habitable
Basements, habitable attics and every sleeping room shall have at least one operable ___ ___ and ___ ___.
Emergency escape
Rescue opening
Each dwelling unit shall be provided with a kitchen area and every kitchen area shall be provided with a ___.
Sink
Flanges and lips of load-bearing cold-formed steel floor framing members shall not be cut or ___.
Notched
Steel studs and other structural members shall not be ___.
Spliced
Grout shall not be pumped through ___ pipes.
Aluminum
In cold-formed steel framing, king, jack and cripple studs shall be of the same dimension and thickness as the adjacent ___ studs.
Wall
Doors between the garage and residence shall be equipped with a ___ - __ ____.
Self-closing or automatic-closing device
Opening from a private garage directly into a room used for ___ ___ shall not be permitted. Sleeping purposes
Sleeping purpose
Garage floor surfaces shall be of approved ___ material.
Noncombustible
Wall bracing Method PFG (Portal Frame at Garage door openings) is limited to walls supporting a roof or ___ ___ and a ___.
One story
Roof
Showers and bathtubs with installed shower heads shall be finished with a non absorbent surface extending to a height of not less than ___ feet above the floor.
6 feet
A pane of glass in a window requires safety glazing if the pane is greater than ___ square feet with a bottom edge less than ___ inches above the floor and a top edge greater than ___ inches above the floor.
9
18
36
Glazing at the side of a stairway where the bottom exposed edge of the glazing is less than ___ inches above the plane of the adjacent walking surface must be safety glazing.
36 inches
Glazing less than ___ inches above the landing at the bottom of a stairway and within ___ inches of the bottom tread nosing must be safety glazing.
36 inches
60 inches
Carports shall be open on at least ___ sides.
Two (2)
Where emergency escape and rescue openings are provided, they shall have a sill height of not more than ____ inches above the floor.
44 inches
All emergency escape and rescue openings shall have a minimum net clear opening of ___ square feet. Minimum net clear opening height shall be ___ inches. Minimum net clear opening width shall be ___ inches.
5.7 square feet
24 inches
20 inches
The horizontal area of a window well serving an emergency escape and rescue opening shall be not less than ___ square feet.
9 square feet
The required egress door for each dwelling unit shall be side-hinged, and shall provide a minimum clear width of ___ inches.
32 inches
A landing at an exterior door shall have a minimum dimension of ___ inches measured in the direction of travel.
36 inches
The width of a hallway shall be not less than ___ feet.
3 feet
The width of a hallway shall be not less than ___ feet.
3 feet
Where a handrail is installed on one side, the clear width of stairways at handrail height shall be a minimum of ___ inches.
31.5 inches
A flight of stairs shall not have a vertical rise larger than ___ inches between floor levels or landings.
151 inches
For stairs with a straight run, the landing shall have a minimum depth of ___ inches measured in the direction of travel.
36 inches
Ramps shall have a maximum slope of ___ unit vertical in ___ units horizontal (8.3-percent slope) where serving the required egress door.
1
12
Stairways shall be not less than ___ inches in clear width at all points above the permitted handrail height and below the required headroom height.
36 inches
On stairways, the maximum riser height shall be ___ inches.
7.75 inches
On stairways, the minimum tread depth shall be ___ inches.
10 inches
On stairways, the greatest riser height within any flight of stairs shall not exceed the smallest by more than ___ inch.
0.375 inch
On stairways, the greatest tread depth within any flight of stairs shall not exceed the smallest by more than ___ inch.
0.375 inch
A nosing projection not less than ___ inch and not more than ___ inches shall be provided on stairways.
0.375 inch
1.25 inch
The headroom in all parts of the stairway shall be not less than ___ feet ___ inches.
6 feet 8 inches
On spiral stairways, the minimum width shall be ___ inches. The rise shall be not more than ___ inches between treads. A minimum headroom of ___ feet ___ inches shall be provided.
26 inches
9.5 inches
6 feet
6 inches
Handrail height shall be a minimum of ___ inches and a maximum of ___ inches.
34 inches
38 inches
Handrail adjacent to a wall shall have a space of not less than ___ inches between the wall and the handrails.
1.5 inches
Type I handrails with a circular cross section shall have an outside diameter of at least ___ inches and not greater than ___ inches.
1.25 inch
2 inches
Open side walking surfaces located more than ___ inches above the floor or grade below shall have guards not less than ___ inches in height.
30 inches
36 inches
Required guards shall not have openings from the walking surface to the required guard height that allow passage of a sphere ___ inches in diameter.
4 inches
Photoelectric smoke alarms shall not be installed less than ___ feet horizontally from a permanently installed cooking appliance.
6 feet
Foam plastic shall have a flame spread index of not more than ___ and shall have a smoke-developed index of mot more than ___.
75
450
Foam plastic shall be separated foam the interior of a building by an approved ___ ___ of not less than ___ -inch gypsum wallboard.
Thermal barrier
.500 inch
In areas where the probability of termite ingestion is a (very heavy..,’ the clearances between foam plastic installed above grade and exposed earth shall be at least ____ inches.
6 inches
Dwelling units in two-family dwellings shall be separated from each other by wall and floor assemblies having not less than ___- hour fire- resistance rating.
1
Address numbers shall be a minimum of ___ inches high with a minimum stroke width of ___ inch.
4 inches
1/2 inch
Where there are ___ or more dwelling units in a single structure, the accessibility provisions of IBC Chapter 11 for Group R-3 shall apply.
Four
Where photovoltaic panels are installed on a roof, a pathway at least ___ inches in width shall be provided to each emergency escape and rescue opening.
36 inches
The grade away from foundation walls shall fall a minimum of ___ inches within the first ___ feet.
6 inches
10 feet
In Seismic Design Categories D0, D1, and D2, foundations with stem walls shall be provided with a minimum of one No. ___ horizontal bar within 12 inches of the top of the wall and one No. ___ horizontal bar located 3 to 4 inches from the bottom of the footing.
4
4
All exterior footings shall be placed at least ___ inches below the undisturbed ground surface.
12 inches
The top surface of footings shall be level. The bottom surface of footings shall not have a slope exceeding ___ unit vertical in ___ units horizontal.
1 unit
10 units
Wood sill plates shall be anchored to the foundation with anchor bolts spaced a maximum of ___ feet on center.
6 feet
Foundation anchor bolts shall be at least ___ inch in diameter and shall extend a minimum of ___ inches into concrete or grouted cells of concerted masonry units.
1/2 inch
7 inches
Isolated hollow masonry piers shall have a minimum nominal thickness of ___ inches.
8 inches
Hollow masonry piers shall be capped with ___ inches of solid masonry or concrete or a masonry cap block.
4 inches
The studs used in wood foundation walls shall be ___ -inch by ____inch members.
2 inches
6 inches
Wood sill plates shall be a minimum of ___ inch by ___ inch nominal lumber.
2 inch
4 inch
Steel pipe columns shall be not less than ___ inches in diameter.
3 inches
In under-floor spaces, the minimum net area of ventilation openings shall be not less than ___ square foot for each ____ square feet of under-floor space area.
1
150
Ventilation openings in under-floor spaces are not required where the ground is covered with a continuous ___ vapor retarder and the joints overlap at least ___ inches.
Class I
6 inches
The minimum required floor access opening to all under-floor spaces shall be ___ inches by ___ inches.
18 inches
24 inches
Open web truss or I-joist floor assemblies are required to have a ___ inch gypsum wallboard membrane, ___ inch wood structural panel membrane, or equivalent on the underside of the floor framing member.
1/2 inch
5/8 inch
The ends of each floor joist, beam or girder shall have not less than ___ inches of bearing on wood or metal and not less than ___ inches of bearing on masonry or concrete.
1.5 inch
3 inches
Notches in solid lumber joists, rafters and beams shall not exceed ___ of the depth, shall not be longer than ___ of the depth and shall not be located in the middle ___ of the span.
1/6 inch
1/3 inch
1/3 inch
The tension side of floor joist members ___ inches or greater in nominal thickness shall not be notched except at the ends of the members.
4 inches
Where the header joist span does not exceed ___ feet, the header joist may be a single member the same member the same size as the floor joist.
4 feet
In combustible construction where there is usable space both above and below a floor-ceiling assembly, draftstop shall be installed so the area of the concealed space does not exceed ___ square feet.
1,000
The provisions of Section R505 Cold-formed Steel Floor Framing shall control the construction of cold-formed steel floor framing for buildings not greater than ___ feet in length perpendicular to the joist span.
60
In cold-formed steel framing, floor cantilevers for the top floor of a two-or three story building or the first floor of a one-story building shall not exceed ___ inches.
24
Concrete slab-on-ground floors shall be a minimum of ___ inches thick.
3.5 inches
For wood stud walls capped with a double top plate, end joints in top plates shall be offset at least ___ inches.
24 inches
Where joists, trusses or rafters are spaced more than 16 inches on center and the bearing studs below are spaced 24 inches on center, such members shall bear within ___ inches of the studs beneath.
5 inches
Any wood stud in an. Exterior wall or bearing partition may be cut or notched to a depth not exceeding ___ percent of its width.
25 percent
Wood studs in non bearing partitions may be notched to a depth not exceeding ___ percent of a single studs width.
40 percent
Exterior wood frame walls parallel to a braced wall line shall be offset not more than ___ feet from the designated braced wall line location.
4 feet
Braced wall lines greater than 16 feet shall have a minimum of ___ braced wall panels.
2 braced wall panels
In order to use the simplified wall bracing methods, the building must be located where the ultimate design wind speed is less than or equal to ___ mph.
130
Load-bearing cold-formed steel studs shall be located in-line with joists, trusses and rafters with a maximum tolerance of ___ inch between the centerline of the horizontal and vertical framing members.
3/4 inch
The minimum thickness of masonry bearing walls more than one story high shall be ___ inches.
8 inches
Solid masonry walls of one-story dwellings and garage shall be not less than ___ inches in thickness where not h=greater than 9 feet in height.
6 inches
The provisions for structural insulated panel walls are limited to buildings not greater than ___ stories in height with each wall not greater than ___ feet high.
2 stories
10 feet
Wood wall framing supporting 3/8-inch gypsum board shall not be spaced more than ___ inches on center.
16 inches
For a water-resistive barrier on an exterior wall, felt shall be applied horizontally with the upper layer lapped over the lower layer not less than ___ inches.
2 inches
Anchored stone and masonry veneer installed over a backing of wood or cold-formed steel shall be limited to the first story above grade and shall not exceed ___ inches in thickness
5 inches
Where using W1.7 wire ties with hooks, stained or masonry veneer shall be separated from the sheathing buy an airspace of a minimum of ___ inch but not more than ___ inches.
1inch
4.5 inches
Weep holes in masonry veneer shall be not less than ___ inch in diameter with a maximum spacing of ___ inches on center.
3/16 inch
33 inches
Collar ties shall be a minimum of 1 inch by 4 inches, spaced not more than ___ feet on center.
4 feet
Attic ventilation openings shall have a least dimension of ___ inch minimum and inch maximum.
1/16 inch
1/4 inch
Attic access rough-framing openings shall be not less than ___ inches by inches.
22 inches
30 inches
Except for Type IC luminaires, thermal insulation shall not be installed above a recessed luminaire or within ___ inches of the recessed luminaire’s enclosure.
3 inches
A cricket or saddle shall be installed on the ridge side of any chimney more than ___ inches wide as measured perpendicular to the slope.
30 inches
Asphalt shingles shall be secured to the roof with not less than ___ fasteners per strip shingles or ___ fasteners per individual shingles.
4 fasteners
2 fasteners
Where the roof sheathing is less than ___ inch thick, the fasteners for asphalt shingles shall penetrate through the sheathing.
3/4 inch
At least one receptacle outlet in bathrooms is required to be within ___ inches of the outside edge of each lavatory basin.
36 inches
There shall be a wall switch at each floor to control stairway lighting where the stairway has ___ or more risers.
6
In calculating box fill, each No. 12 AWG conductor shall require ___ cubic inches of free space within the box.
2.25 cubic inches
Switches for devices and luminaires shall not be more than ___ feet ___ inches above the floor or working platform when the switch is in its highest position.
6 feet
7 inches
In clothes closets, surface-mounted incandescent luminaires shall have ___ inches of minimum clearance from the nearest point of a storage space.
12 inches
Flexible cords for kitchen range hoods shall be ___ inches minimum and ___ inches maximum length.
18 inches
48 inches
Cords that supply swimming pool equipment shall have a copper equipment grounding conductor not smaller than No. ___ AWG.
12 AWG
Wood structural panels with a minimum thickness of ___ inch and a maximum span of ___ feet shall be permitted for opening protection for opening protection in wind borne debris regions.
7/16 inch
8 feet
What is the minimum uniformly distributed live load for habitable attics and attics served with fixed stairs?
30 pounds per square foot
Hot water is water at a temperature greater than or equal to ___ degrees F.
110
Unattached decks not exceeding ___ square feet in area, that are not more than ___ inches above grade, do not require a permit.
200 square feet
30 inches
Fences that are ___ feet or less in height do not require permits.
7 feet
A permit is not required for one-story detached accessory structures, provided that the floor area does not exceed ___ square feet.
200 square feet
A luminaire that weights more than ___ pounds or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lamp holder.
6 pounds
At the intersection of asphalt shingles with a vertical sidewall, flashing shall be a minimum of ___ inches in height and ___ inches in width.
4 inches
4 inches
Roof drip edges shall be mechanically fastened to the roof deck at a maximum of ___ inches on center.
12 inches
Wood shakes shall only be used on slopes of ___ units vertical in ___ units horizontal or greater.
3 units
12 units
For wood shake roofs, valley flashing shall be not less than No. ___ gage corrosion-resistant sheet metal.
26
Masonry chimney walls or chimney flue linings shall not change in size or shape within ___ inches above or below where the chimney passes through floor, ceiling or roof components.
6 inches
Chimneys shall extend at least ___ feet higher than any portion of a building within ___ feet.
2 feet
10 feet
Masonry chimney walls shall be constructed of solid masonry units or hollow masonry units grouted solid with not less than a ___ inch nominal thickness.
4 inch
Any portion of a masonry chimney located in the interior of a building or within an exterior wall shall have a minimum airspace clearance to combustible of ___ inches.
2 inches
Exterior masonry chimneys that pass through a soffit or cornice shall have a minimum airspace clearance of ___ inch.
1 inch
Footing for masonry chimneys shall be constructed of concrete or solid masonry at least ___ inches thick.
12 inches
The minimum thickness of masonry fireplace hearths shall be ___ inches.
4 inches
Where a masonry fireplace opening is less than 6 square feet, hearth extension shall extend at least ___ inches in front of and at least ___ inches beyond each side of the fireplace opening.
16 inches
8 inches
For masonry fireplace openings 6 square feet or larger, hearth extensions shall extend at least ___ inches in front of and at least ___ inches beyond each side of the fireplace opening.
20 inches
12 inches
The maximum amount of fuel oil stored above ground or inside a building shall be ___ gallons.
660 gallons
Vent piping on oil tank shall be not smaller than ___ inch pipe.
1.25 inch
Oil tank vent piping shall terminate outside of building at a point not less than ___ feet, measured vertically or horizontally, from any building opening.
2 feet
Fuel gas piping installed across roof surface shall be elevated not less than ___ inches above the roof surface.
3.5 inches
Where gas piping is concealed and run within ___ inches from the framing member face to which the membranes will be attached, it shall be protected by shield plates.
1.5 inches
Shield plates, where required to cover the area of concealed gas piping, shall be a minimum No. ___ gage.
16 gage
Underground fuel gas piping systems shall be installed a minimum depth of ___ inches below grade.
12 inches
Gas appliance shutoff valves shall be located in the same room as the appliance and not farther than ___ feet from the appliance.
6 feet
Fuel gas appliance connectors shall not exceed an overall length of ___ feet.
6 feet
Gas vents over 12 inches in size shall terminate not less than ___ feet above the highest point where they pass through the roof.
2 feet
A Type B or Type L gas vent shall terminate at least ___ feet inn vertical height above the highest connected appliance draft hood or flue collar.
5 feet
A Type B-W gas vent shall terminate at least ___ feet in vertical height above the bottom of a wall furnace.
12 feet
The lowest portion of a gas floor furnace shall have not less than a ___ inch clearance from grade level.
6 inches
What size diameter is required for fuel-gas-fired domestic clothes dryer exhaust ducts?
4 inches
Domestic clothes dryer transition ducts shall be metal and limited to a single length not to exceed ___ feet.
8 feet
When doing a water test on DWV systems during rough-in plumbing, each section shall be filled with water to a point not less than ___ feet above the highest fitting in that section.
5 feet
When doing an air test on DWV systems during rough in plumbing, the portion under test shall be maintained at ___ psi for ___ minutes.
5 psi for 15 minutes
Water service pipe shall be installed not less than ___ inches deep and not less than ___ inches below the frost line.
12 inches
6 inches
Trenching installed parallel to footings shall not extend below the ___ degrees bearing plane of the bottom edge of a wall or footing.
45 degrees
In plumbing systems, supports for 1-inch copper or copper alloy tubing run horizontally shall not be spaced more than ___ feet apart.
6 feet
Fixture tail pieces shall be not less than ___ inches in diameter for sinks, dishwashers, laundry tubs, bathtubs and similar fixtures.
1.5 inches
The center line of water closets or bidets shall not less than ___ inches from adjacent side walls or partitions.
15 inches
There shall be at least ___ inches of clearance in front of the water closet, bidet or lavatory to any wall, fixture or door.
21 inches
Standpipes shall extend a minimum of ___ inches and a maximum of ___ inches above the trap weir.
18 inches
42 inches
Shower compartments shall have at least ___ square inches of interior cross-sectional area.
900
Lavatories shall have waste outlets not less than ___ inches in diameter.
1.25 inches
Bathtubs shall be equipped with waste outlets and overflow outlets connected to piping at least ___ inches in diameter.
1.5 inches
Sinks shall be provided with waste outlets not less than ___ inches in diameter.
1.5 inches
Each compartment of a laundry tub shall be provided with a waste outlet not less than ___ inches in diameter.
1.5 inches
Floor drains shall have waste outlets not less than ___ inches in diameter and a removable strainer.
2 inches
The maximum static pressure of a water service shall be a—- psi.
80 psi
The maximum size water service pipe shall be ___ inch.
3/4 inch
The fire sprinkler water supply shall provide the required design flow rate for ___ minutes for one-story dwelling units less than ___ square feet in area.
7 minutes
2,000 square feet
Where chlorine is used for disinfection in non-potable water systems, the water shall contain not more than ___ ppm of chloramines or free chlorine.
4 ppm
The drainage fixture unit (d.f.u.) value of a dishwasher is ___.
2
Electrical services within the scope of the IRC are limited to ___ volt, 0-to -ampere, single-phase systems.
120/240
400
Overhead service-drop conductors shall have a vertical clearance of not less than ___ feet above roof surface.
8 feet
Over residential property and driveways, service-drop conductors shall have ___ feet minimum clearance above final grade.
12 feet
In no case shall the point of attachment for service-drop conductors be less than ___ feet above finished grade.
10 feet
Above-ground service-entrance cables subject to physical damage shall be protected by Schedule ___ PVC conduit.
80 PVC
Interior metal water piping located more than ___ feet from the point of entrance to the building shall not be used to connect electrodes as part of the grounding electrode system.
5 feet
Rod and pipe electrodes shall be not less than ___ feet in length.
8 feet
Where a branch circuit or a feeder supplies a continuous load, it shall have an ampacity of at least the non continuous load plus ___ percent of the continuous load.
125 percent
The rating of any one cord-and-plug-connected utilization equipment shall not exceed ___ percent of the branch-circuit ampere rating.
80 percent
A minimum of ___ 20-ampere-rated branch circuit shall be provided to serve all wall and floor receptacle outlets located in the kitchen, pantry, breakfast area, dinning area or similar area of a dwelling.
2
A minimum of one ___ ampere-rated branch circuit shall be provided for receptacles located in the laundry area and shall serve only receptacle outlets in the laundry area.
20
A minimum of ___ 20-ampere rated branch circuit(s) shall be provided to supply the bathroom receptacle outlet(s). Such circuit shall have no other outlets.
1
Conductors in NM cable assemblies shall be rated at ___ degrees C.
90
Receptacles shall be installed so that no point along the floor line in any wall space is more than ___ feet, measured horizontally, from an outlet in that space.
6 feet
Kitchen wall countertop and work surface receptacles shall be installed so that no point along the wall line is more than ___ inches from a receptacle.
24 inches
The landing on the exterior side of the required egress door is permitted to be a maximum of ___ inches below the top of the threshold provided that the door does not swing over the landing.
7.75 inches
For dwellings with fire sprinkler systems, exterior walls with a fire separation distance less than ___ feet shall have not less than a 1-hour fire-resistance rating with exposure from the outside.
3 feet
In a non sprinklered townhouse building, the common wall between units be a minimum ___ -hour ___-___ ___ wall assembly.
2-hour fire-resistance rated wall assembly
For townhouse separation, a parapet is not required where the roof sheathing is fire-retardant-treaded wood for a distance of ___ feet on each side of the wall and there are no penetrations in the roof within ___ feet of the common wall.
4 feet
4 feet
Garages shall be separated from resistance and attics by not less than ___ inch gypsum board or equivalent applied to the garage side.
1/2 inch
Enclosed space under stairs that is accessed by a door or access panel shall have walls, under-stair surface and any soffits protected on the enclosed side with ___ inch gypsum board.
1/2 inch
Wall and ceiling finishes shall have a flame spread index of not greater than ___.
200
All habitable rooms shall be provided with aggregate glazing area of not less than ___ percent of the floor areas of such rooms.
8
For natural ventilation for habitable rooms, the minimum openable area to the outdoors shall b ___ percent of the floor area being ventilated.
4 percent
Bathrooms shall be provided with aggregate glazing area in windows of not less than ___ square feet, one-half of which must be openable.
3
Where the air infiltration rate of a dwelling unit is not more than ___ air changes per hour where tested, the dwelling unit shall be provided with ___-___ mechanical ventilation.
5
Whole-house
Dwelling unitys shall be provided with heating facilities capable of maintaining a minimum room temperature of degrees F.
68
Habitable rooms shall have a floor ares of not less than ___ square feet.
70
Habitable rooms shall be not less than ___ feet in any horizontal dimension.
7 feet
Habitable space, hallways and portions of basements containing these spaces shall have a ceiling height of not less than ___ feet.
7 feet
Bathrooms, toilet rooms and laundry rooms shall have a minimum ceiling height of ___ feet ___ inches.
6 feet 8 inches
For rooms with sloped ceilings, at least ___ percent of the required floor areas of the room must have a ceiling height of not less than 7 feet.
50 percent
Portions of basements that do not contain habitable space or hallways shall have a ceiling height of not less than ___ feet ___ inches.
6 feet 8 inches
A clearance of at least ___ inches shall be provided at the front of a shower opening.
24 inches
All wood beams, joists, studs and other combustible material shall have a clearance of not less than ___ inches from the front faces and sides of masonry fireplaces.
2 inches
Combustible material within ___ inches of the fireplace opening shall not project more than 1/8 inch for each 1-inch distance from such an opening.
12 inches
For mechanical systems, a level working space at least ___ inches deep and ___ inches wide shall be provided in front of the control side to service an appliance.
30 inches 30 inches
Where mechanical equipment is located in attics, it shall not be farther than ___ feet from the attic access.
20 feet
Mechanical appliances suspended from the floor shall have a clearance of not less than ___ inches from the ground.
6 inches
Mechanical appliances having an ignition source shall be elevated such that the source of ignition is not less tan ___ inches above he floor in garages.
18 inches
Clothes dryer exhaust ducts shall be ___ inches nominal in diameter.
4 inches
A 4-inch radius mitered 45-degree elbow dryer exhaust duct fitting shall reduce the maximum 35-foot length of a dryer duct by ___ feet ___ inches.
2 feet 6 inches
Crimp joints for round and oval metal ducts shall be lapped not less than ___ inch(es).
1 inch
For gas appliance installations using the two-permanent-openings methods for outdoor combustion air, one opening shall be within ___ inches of the top and one within ___ inches of the bottom of the space.
12 inches within 12 inches
Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than ___ inches to unprotected combustible material.
30 inches
Sauna heaters shall be equipped with a thermostat that will limit room temperature to not greater than ___ degrees F.
194
Boiler pressure relief valve discharge shall be piped to drains by gravity to within ___ inches of the floor or to an open receptor.
18 inches
