IRC Exam Prep Study Questions Chapter
3: Building Planning fully solved
Buildings and structures must be constructed to safely support which of the following loads?
A. dead loads
B. live loads
C. roof loads
D. A through C - correct answer ✔✔D. Dead Loads, Live Loads and/or Roof Loads
Where wood structural panels are used to protect windows in buildings located in windborne debris
regions, No. 10 wood screws must be located at a max. of ________ on center to fasten those panels to
the span of 8 feet.
A. 8 inches
B. 9 inches
C. 12 inches
D. 16 inches - correct answer ✔✔B. 9 inches
Where structural wood panels are used to provide windborne debris protection for glazed openings
anchors must penetrate through the exterior wall covering with a min. embedment length of
________________________ into the building frame.
A. 1 inch
B. 1-1/2 inches
C. 2 inches
D. 2-1/2 inches - correct answer ✔✔C. 2 inches
Urban and suburban areas, with numerous closely spaced obstructions having the size of single-family
dwellings or larger sited, are classified as ____________________________.
A. Exposure A
B. Exposure B
, C. Exposure C
D. Exposure D - correct answer ✔✔B. Exposure B
Flat, unobstructed areas exposed to wind flowing over open water, smooth mud flats, salt flats and
unbroken ice for a distance of not less than 5,000 feet are classified as______________.
A. Exposure A
B. Exposure B
C. Exposure C
D. Exposure D - correct answer ✔✔D. Exposure D
Open terrain with scattered obstructions, including surface undulations or other irregularities, having
heights generally less than 30 feet extending more than 1,500 feet from the building site in any quadrant
is classified as _______________.
A. Exposure A
B. Exposure B
C. Exposure C
D. Exposure D - correct answer ✔✔C. Exposure C
The seismic design category for a site having a calculated Sds of 0.30g is _______________________.
A. A
B. B
C. C
D. D - correct answer ✔✔B. B
The average dead loads of Seismic Design Category C must not exceed ____________ for the combined
roof and ceiling assemblies on a horizontal projection.
A. 10 psf
B. 15 psf
C. 20 psf
D. 25 psf - correct answer ✔✔B. 15 psf
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