IRC Building Code EXAM 2025 UPDATE/PRACTICE QUESTIONS
AND CORRECT VERIFIED ANSWERS (complete solutions)
ASSURED SUCCESS/GRADED A+!!!
In flood hazard areas, enclosed areas below the design flood elevation shall be
used sole for:
1._____
2._____
3._____ - CORRECT ANSWER-Parking of vehicles
Building access or
Storage
R322.3.5 Enclosed areas below design flood elevation.
Address number shall be a minimum of ___ inches high with a minimum stroke of
____inch. - CORRECT ANSWER-4 in.
1/2 in.
R319.1 Address numbers
,Protection of wood and wood based products from ___ shall be provided by the
use of naturally durable wood or wood that is preservative treated. - CORRECT
ANSWER-Decay
R317.1 Location required
Dwelling Units in two-family dwellings shall be separated from each other by wall
and/or floor assemblies having not less than ___-hour fire resistive rating. -
CORRECT ANSWER-1 hour
R302.3 Two family dwellings
In areas where the probability of termite infestation is "very heavy", the clearance
between foam plastics installed above grade and exposed earth shall be at least
____ inches. - CORRECT ANSWER-6 in.
R318.4 Foam plastic protection
In Seismic Design Categories D0, D1, and D2, _____ stone masonry walls shall not
be used. - CORRECT ANSWER-Rubble
R404.1.1.1 Masonry foundation walls.
In Seismic Design Categories Do, D1 and D2, foundations with stem walls shall be
provided with a minimum of one No. ___ bar within 12 inches of the top of the
,wall and one No. ___ bar located 3 to 4 inches from the bottom of the footing. -
CORRECT ANSWER-#4
#4
R403.1.3.1 Foundations with stemwalls
The grade away from foundation walls shall fall a minimum of ___ inches within
the first ____ feet. - CORRECT ANSWER-6 in.
10 ft.
(Read exception)
R401.3 Drainage
A thermal barrier is not required for foam plastic insulation in an attic that is
entered only for purposes of ____ or ____. - CORRECT ANSWER-Repairs or
maintenance
R316.5.3 Attics
Foam plastic shall be separated from the interior of a building by an approved
____ ____ of minimum ____- inch gypsum wallboard. - CORRECT ANSWER-
Thermal barrier
1/2 in.
, R316.4 Thermal barrier
All exterior footings shall be placed at least ___ inches below the undisturbed
ground surface. - CORRECT ANSWER-12 in.
(Where applicable, the dept of footings shall also conform to R403.1.4.1 -
R403.1.4.2)
R403.1.4 Minimum length
The top surface of footings shall be level. The bottom surface of footings shall not
have a slope exceeding ____ unit vertical in ____ units horizontal. - CORRECT
ANSWER-1:10
R403.1.5 Slope
Wood sill plates shall be anchored to the foundation with anchor bolts spaced a
maximum of ____ feet on center. - CORRECT ANSWER-6 ft.
R403.1.6 Foundation anchorage
Foundation anchor bolts shall be at least ___ inch in diameter and shall extend a
minimum of ___ inches into the concrete or grouted cells of concrete masonry
units. - CORRECT ANSWER-1/2 in.
7 in.
AND CORRECT VERIFIED ANSWERS (complete solutions)
ASSURED SUCCESS/GRADED A+!!!
In flood hazard areas, enclosed areas below the design flood elevation shall be
used sole for:
1._____
2._____
3._____ - CORRECT ANSWER-Parking of vehicles
Building access or
Storage
R322.3.5 Enclosed areas below design flood elevation.
Address number shall be a minimum of ___ inches high with a minimum stroke of
____inch. - CORRECT ANSWER-4 in.
1/2 in.
R319.1 Address numbers
,Protection of wood and wood based products from ___ shall be provided by the
use of naturally durable wood or wood that is preservative treated. - CORRECT
ANSWER-Decay
R317.1 Location required
Dwelling Units in two-family dwellings shall be separated from each other by wall
and/or floor assemblies having not less than ___-hour fire resistive rating. -
CORRECT ANSWER-1 hour
R302.3 Two family dwellings
In areas where the probability of termite infestation is "very heavy", the clearance
between foam plastics installed above grade and exposed earth shall be at least
____ inches. - CORRECT ANSWER-6 in.
R318.4 Foam plastic protection
In Seismic Design Categories D0, D1, and D2, _____ stone masonry walls shall not
be used. - CORRECT ANSWER-Rubble
R404.1.1.1 Masonry foundation walls.
In Seismic Design Categories Do, D1 and D2, foundations with stem walls shall be
provided with a minimum of one No. ___ bar within 12 inches of the top of the
,wall and one No. ___ bar located 3 to 4 inches from the bottom of the footing. -
CORRECT ANSWER-#4
#4
R403.1.3.1 Foundations with stemwalls
The grade away from foundation walls shall fall a minimum of ___ inches within
the first ____ feet. - CORRECT ANSWER-6 in.
10 ft.
(Read exception)
R401.3 Drainage
A thermal barrier is not required for foam plastic insulation in an attic that is
entered only for purposes of ____ or ____. - CORRECT ANSWER-Repairs or
maintenance
R316.5.3 Attics
Foam plastic shall be separated from the interior of a building by an approved
____ ____ of minimum ____- inch gypsum wallboard. - CORRECT ANSWER-
Thermal barrier
1/2 in.
, R316.4 Thermal barrier
All exterior footings shall be placed at least ___ inches below the undisturbed
ground surface. - CORRECT ANSWER-12 in.
(Where applicable, the dept of footings shall also conform to R403.1.4.1 -
R403.1.4.2)
R403.1.4 Minimum length
The top surface of footings shall be level. The bottom surface of footings shall not
have a slope exceeding ____ unit vertical in ____ units horizontal. - CORRECT
ANSWER-1:10
R403.1.5 Slope
Wood sill plates shall be anchored to the foundation with anchor bolts spaced a
maximum of ____ feet on center. - CORRECT ANSWER-6 ft.
R403.1.6 Foundation anchorage
Foundation anchor bolts shall be at least ___ inch in diameter and shall extend a
minimum of ___ inches into the concrete or grouted cells of concrete masonry
units. - CORRECT ANSWER-1/2 in.
7 in.
