Building Inspector exam questions with
complete solutions
Building official approves R 104.9.1 - correct answer ✔✔Used material may be utilized when
windows are not permitted in sprinklered dwelling unit exterior walls with a fire separation distance of -
correct answer ✔✔less than 3' IRC table R302.1.(2)
water front wind exposure - correct answer ✔✔D
R30x?
Final grade must fall a min. of xxxx i. within 10ft of a dwelling, except where drains or swales are
provided.
IRC section 401.3 - correct answer ✔✔6
what is the presumptive load-bearing capacity of silty gravel foundation material in pounds psf?
IRC 401.4.1 - correct answer ✔✔2000
concrete footings can be designed and constructed in accordance with the provisions of the xxxx
standard.
R 403.1 - correct answer ✔✔ACI 332
What is the min. concrete footing width (in )and thickness (in) requirement for a 2 story wood framed
dwelling with brick veneer and a basement built on soil, with a load-bearing capacity of 1500 pounds per
square foot and a 30 psf snow load?
R403.1 - correct answer ✔✔27x9
,What is the min. concrete footing width (in )and thickness (in) requirement for 1 story slab on grade,
light frame construction - correct answer ✔✔12x6
Table R403.1 (1)
Min. width and thickness for concrete footing for light frame construction
Given: A single family dwelling is proposed using masonry veneer for the walls and a crawlspace
foundation.
What is the min. distance that the foundation wall must extend above the grade, in inches?
R404.1.6 - correct answer ✔✔4"
Given: A plain masonry foundation wall for a single-family dwelling is 8ft. Tall and has an unbalanced
backfill height of 5' 6in. GW soil is encountered and Seismic Design Category C is assumed.
What is the min. required thickness in inches of the foundation
wall in accordance with the code's prescriptive requirements? - correct answer ✔✔10
Table R 404.1.1(1)
Plain Masonry Foundation walls.
nominal size of wood column?
R 407.3 - correct answer ✔✔4x4
min. concrete footing width and thickness req. for a 2story wood framed dwelling slab on grade built on
soil with a load bearing capacity of 2500 pounds psf and a 20 psf snow load? (R403.1) - correct answer
✔✔12x6
Prior to applying dampproofing, masonry walls shall have not less than ----in. portland cement parging
applied to the exterior of the wall.
R406.1 - correct answer ✔✔3/8"
, wood decking for exterior decks shall be attached to each supporting member with not less than two 8d
threaded nails or ----
R507.7 - correct answer ✔✔two No.8 woodscrews
Cutting and notching of engineered wood products
R502.8.2 - correct answer ✔✔is permitted when recommended by the manufacturer.
Mn. Thickness for a concrete slab on ground floor for a two family dwelling is ----in. (R506.1) - correct
answer ✔✔3.5"
3.5" - correct answer ✔✔The min. thickness for a concrete slab on ground floor for a two family dwelling
R506.1
18x24 - correct answer ✔✔access openings to under floor spaces located in a floor must be a min. of (r
408.4)
one-fourth - correct answer ✔✔solid lumber joists may not have notches at the end of the member that
are less than xxx of the joist's depth[R502.8.1]
14'-1" - correct answer ✔✔Where 2 in by 10 in floor joists of #1 spruce pine fir are spaced at 16 O.C,
what is the max. span when joists support a living room and a dead load of 20psf? [R502.3.1(2)]
67" - correct answer ✔✔When supporting an exterior balcony in an area having a ground snow load of
50 psf, what is the max. cantilever span for #2 Douglas fir 2x12 floor joists spaced at 16 O.C?
[R502.3.3(2)]
16" O.C. - correct answer ✔✔What is the max. stud spacing for 2x6 bearing wall studs supporting two
floor and a roof ceiling assembly? [ Table R602.3(5)]
Utility grade
complete solutions
Building official approves R 104.9.1 - correct answer ✔✔Used material may be utilized when
windows are not permitted in sprinklered dwelling unit exterior walls with a fire separation distance of -
correct answer ✔✔less than 3' IRC table R302.1.(2)
water front wind exposure - correct answer ✔✔D
R30x?
Final grade must fall a min. of xxxx i. within 10ft of a dwelling, except where drains or swales are
provided.
IRC section 401.3 - correct answer ✔✔6
what is the presumptive load-bearing capacity of silty gravel foundation material in pounds psf?
IRC 401.4.1 - correct answer ✔✔2000
concrete footings can be designed and constructed in accordance with the provisions of the xxxx
standard.
R 403.1 - correct answer ✔✔ACI 332
What is the min. concrete footing width (in )and thickness (in) requirement for a 2 story wood framed
dwelling with brick veneer and a basement built on soil, with a load-bearing capacity of 1500 pounds per
square foot and a 30 psf snow load?
R403.1 - correct answer ✔✔27x9
,What is the min. concrete footing width (in )and thickness (in) requirement for 1 story slab on grade,
light frame construction - correct answer ✔✔12x6
Table R403.1 (1)
Min. width and thickness for concrete footing for light frame construction
Given: A single family dwelling is proposed using masonry veneer for the walls and a crawlspace
foundation.
What is the min. distance that the foundation wall must extend above the grade, in inches?
R404.1.6 - correct answer ✔✔4"
Given: A plain masonry foundation wall for a single-family dwelling is 8ft. Tall and has an unbalanced
backfill height of 5' 6in. GW soil is encountered and Seismic Design Category C is assumed.
What is the min. required thickness in inches of the foundation
wall in accordance with the code's prescriptive requirements? - correct answer ✔✔10
Table R 404.1.1(1)
Plain Masonry Foundation walls.
nominal size of wood column?
R 407.3 - correct answer ✔✔4x4
min. concrete footing width and thickness req. for a 2story wood framed dwelling slab on grade built on
soil with a load bearing capacity of 2500 pounds psf and a 20 psf snow load? (R403.1) - correct answer
✔✔12x6
Prior to applying dampproofing, masonry walls shall have not less than ----in. portland cement parging
applied to the exterior of the wall.
R406.1 - correct answer ✔✔3/8"
, wood decking for exterior decks shall be attached to each supporting member with not less than two 8d
threaded nails or ----
R507.7 - correct answer ✔✔two No.8 woodscrews
Cutting and notching of engineered wood products
R502.8.2 - correct answer ✔✔is permitted when recommended by the manufacturer.
Mn. Thickness for a concrete slab on ground floor for a two family dwelling is ----in. (R506.1) - correct
answer ✔✔3.5"
3.5" - correct answer ✔✔The min. thickness for a concrete slab on ground floor for a two family dwelling
R506.1
18x24 - correct answer ✔✔access openings to under floor spaces located in a floor must be a min. of (r
408.4)
one-fourth - correct answer ✔✔solid lumber joists may not have notches at the end of the member that
are less than xxx of the joist's depth[R502.8.1]
14'-1" - correct answer ✔✔Where 2 in by 10 in floor joists of #1 spruce pine fir are spaced at 16 O.C,
what is the max. span when joists support a living room and a dead load of 20psf? [R502.3.1(2)]
67" - correct answer ✔✔When supporting an exterior balcony in an area having a ground snow load of
50 psf, what is the max. cantilever span for #2 Douglas fir 2x12 floor joists spaced at 16 O.C?
[R502.3.3(2)]
16" O.C. - correct answer ✔✔What is the max. stud spacing for 2x6 bearing wall studs supporting two
floor and a roof ceiling assembly? [ Table R602.3(5)]
Utility grade
