Kansas Residential Building Contractor (C) Exam (ICC KGC, 2018 IRC)

Ends of each rafter or ceiling joist require not less than 1-1/2 inches of bearing on wood or metal, but not less than 3 inches on masonry or concrete.

Direct bearing on masonry or concrete must be not less than 3 inches, while a 2-inch minimum nominal sill plate used instead must provide a minimum nominal bearing area of 48 square inches.

Concrete and masonry foundation walls shall extend above finished grade not less than 4 inches where masonry veneer is used and not less than 6 inches elsewhere (IRC R404.1.6).

Unlimited unprotected openings in 0-hour-rated exterior walls require a fire separation distance of 5 feet or more without sprinklers, whereas sprinklered dwellings may have non-fire-resistance-rated exterior walls at a fire separation distance of 3 feet or more.

Exterior-wall and bearing-partition studs may be cut or notched to a depth not exceeding 25 percent of stud width; nonbearing partition studs may be notched up to 40 percent.

Any stud may be bored to a hole diameter not more than 60 percent of stud width, but holes over 40 percent up to 60 percent in exterior walls or bearing partitions require the stud to be doubled, with not more than two successive doubled studs bored.

LABELED means a mark of a nationally recognized testing laboratory or approved agency that maintains periodic inspection of production has been affixed; LISTED means inclusion in a published list, and APPROVED means acceptable to the building official.

REPAIR is reconstruction, replacement or renewal of a part of an existing building for maintenance or to correct damage; ALTERATION is construction, retrofit or renovation other than repair or addition that requires a permit, and ADDITION is an extension or increase in floor area, number of stories or height.

A built-up roof covering is two or more layers of felt cemented together and surfaced, while a modified bitumen covering is one or more layers of polymer modified asphalt sheets and a single-ply membrane uses one layer of membrane material.

For sulfate soils or solutions, Type V sulfate-resistant cement is used for severe exposures and Type II for moderate exposures; Type III is a high-early-strength cement, not sulfate-resisting.

Finely divided, uniformly distributed clay or silt in sand is not harmful up to 5 percent generally, but the limit drops to 3 percent for concrete subject to abrasion (1.5 percent is the allowance for loose fines on coarse aggregate).

A walking surface becomes a RAMP by definition when its running slope is steeper than 1 unit vertical in 20 horizontal (5 percent); 1:12 is the maximum permitted ramp slope, not the definition threshold.

A third top plate is an accepted exception for aligning bearing studs under members spaced over 16 inches on center, but it is NOT a permitted method of connecting braced wall panel top plates to perpendicular roof trusses where the distance exceeds 15-1/4 inches.