Kansas General Building Contractor (B) Exam (ICC KGB, 2018 IBC/IRC)

A dwelling unit has permanent provisions for living, sleeping, eating, cooking and sanitation, while a sleeping unit may have provisions for living, eating and either sanitation or kitchen facilities, but not both.

Wood shakes shall only be used on slopes of not less than 4:12, which is steeper than the minimum slope allowed for wood shingles (3:12) or clay/concrete tile (2½:12).

Coal-tar built-up roofs may be designed at a minimum ⅛ unit vertical in 12 (1-percent) slope, while standard built-up roofs require a minimum ¼:12 slope.

A mark gives only the manufacturer's name and the product's function; a label additionally carries performance characteristics and the name/identification of an approved agency, and a manufacturer's designation indicates compliance with a specified standard or set of rules.

An approved source is an independent person, firm or corporation approved by the building official who is competent and experienced in applying engineering principles to materials, methods or systems analyses, while an approved agency is one regularly engaged in conducting tests, furnishing inspection services or product certification.

Labeled means an identifying mark of a nationally recognized testing laboratory or approved agency that maintains periodic inspection of production is affixed; listed means inclusion in a published list; approved means acceptable to the building official.

Booth seating is computed at 24 inches per person measured at the backrest, while fixed seating without dividing arms is computed at 18 inches per person.

In the multistory allowable-area equation the actual number of stories above grade plane (Sa) shall not exceed three, except that the limit is four for buildings sprinklered under Section 903.3.1.2 (NFPA 13R), which itself is permitted only in Group R up to four stories and 60 feet above grade plane.

Class I vapor retarders, such as sheet polyethylene and nonperforated aluminum foil, have a perm rating less than or equal to 0.1; Class II is greater than 0.1 up to 1.0 and Class III is greater than 1.0 up to 10.0.

Tested per ASTM E84 or UL 723, Class A is flame spread 0–25, Class B is 26–75 and Class C is 76–200, each with a smoke-developed index of 0–450; there is no class above 200.

Roof assembly classes are graded by fire-test exposure: Class A severe, Class B moderate, Class C light.

The 36-inch clear width between handrails applies to accessible-route ramps, the 48-inch dimension applies to stairways serving as an accessible means of egress, and 44 inches is a general corridor/exit passageway width.

Where concrete is exposed to sulfate soils or solutions, Type V sulfate-resistant cement should be used in severe exposures and Type II in moderate exposures; Type III is a high-early-strength cement, not a sulfate-resisting one.

Direct bearing on masonry or concrete requires not less than 3 inches of bearing, whereas a 2-inch nominal sill plate under the member must provide a minimum nominal bearing area of 48 square inches.

The volumetric meter determines air content from the change in water column height after agitation, requires no knowledge of batch materials or properties and can be used on lightweight concrete, while the gravimetric method requires specific gravities and batch proportions and the Chace meter is only an approximation.