2025 IRC EXAM CHAPTER 1 QUESTIONS
WITH CORRECT ANSWERS 2025
The IRC is applicable to single-family dwellings a maximum of stories in above-grade-
plane height. - correct answer-3
R101.2 Scope.
If there is a conflict in the code between a general requirement and a specific requirement, the
requirement shall apply. - correct answer-specific
R102.1 General.
Provisions of the appendices do not apply unless .
A. Specified in the code
B. Applicable to unique conditions
C. Specifically adopted
D. Relevant to fire or life safety - correct answer-C - specifically adopted
R102.5 Appendices
is the term used in the IRC to describe the individual in charge of the department of bui
lding safety.
a. building official
b. code official
c. code administrator
d. chief building inspector - correct answer-building official
R103.1 Creation of enforcement agency
The building official has the authority to the provisions of the code.
, a. ignore
b. waive
c. violate
d. interpret - correct answer-interpret
R104.1 Duties and Powers of the Building Official - General
Used materials may be utilized under which one of the followingTconditions?
a. they meet the requirements for new materials
b. when approved by the buildingTofficial
c. used materials may never be used in new construction
d. a representative sampling is tested for compliance - correct answer-
when approved by the building official
R104.9.1 Used materials and equipment
The building official has the authority to grant modifications to the code .
a. for only those issues not affecting life safety or fire safety
b. for individual cases where the strict letter of the code is impractical
c. where the intent and purpose of the code cannot be met
d. related only to administrative functions - correct answer-
for individual cases where the strict letter of the code is impractical
R104.10 Modifications
Unless supporting a surcharge, retaining walls having a maximum height of inches, measure
d from the bottom of the footing to the top of the wall, do not require a permit.
A. 30
B. 36
C. 48
WITH CORRECT ANSWERS 2025
The IRC is applicable to single-family dwellings a maximum of stories in above-grade-
plane height. - correct answer-3
R101.2 Scope.
If there is a conflict in the code between a general requirement and a specific requirement, the
requirement shall apply. - correct answer-specific
R102.1 General.
Provisions of the appendices do not apply unless .
A. Specified in the code
B. Applicable to unique conditions
C. Specifically adopted
D. Relevant to fire or life safety - correct answer-C - specifically adopted
R102.5 Appendices
is the term used in the IRC to describe the individual in charge of the department of bui
lding safety.
a. building official
b. code official
c. code administrator
d. chief building inspector - correct answer-building official
R103.1 Creation of enforcement agency
The building official has the authority to the provisions of the code.
, a. ignore
b. waive
c. violate
d. interpret - correct answer-interpret
R104.1 Duties and Powers of the Building Official - General
Used materials may be utilized under which one of the followingTconditions?
a. they meet the requirements for new materials
b. when approved by the buildingTofficial
c. used materials may never be used in new construction
d. a representative sampling is tested for compliance - correct answer-
when approved by the building official
R104.9.1 Used materials and equipment
The building official has the authority to grant modifications to the code .
a. for only those issues not affecting life safety or fire safety
b. for individual cases where the strict letter of the code is impractical
c. where the intent and purpose of the code cannot be met
d. related only to administrative functions - correct answer-
for individual cases where the strict letter of the code is impractical
R104.10 Modifications
Unless supporting a surcharge, retaining walls having a maximum height of inches, measure
d from the bottom of the footing to the top of the wall, do not require a permit.
A. 30
B. 36
C. 48
