Texas Residential Building Inspector
Exam With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. Which code is most commonly adopted in Texas for residential
construction inspections?
A. International Building Code (IBC)
B. International Mechanical Code (IMC)
C. International Residential Code (IRC)
D. National Electrical Code (NEC)
Correct Answer: C
The IRC is specifically designed for one- and two-family dwellings
and is the primary code used for residential inspections in Texas.
2. What is the minimum ceiling height required for habitable rooms
under the IRC?
A. 6 feet 4 inches
B. 7 feet
C. 7 feet 6 inches
D. 8 feet
Correct Answer: B
The IRC requires a minimum ceiling height of 7 feet for habitable
spaces to ensure occupant comfort and safety.
,3. Which foundation type is most commonly used in Texas
residential construction?
A. Basement foundation
B. Pier and beam
C. Slab-on-grade
D. Pile foundation
Correct Answer: C
Slab-on-grade foundations are common in Texas due to soil
conditions and climate.
4. What is the primary purpose of anchor bolts in residential
construction?
A. Support roof framing
B. Prevent wall cracking
C. Secure the structure to the foundation
D. Improve insulation
Correct Answer: C
Anchor bolts tie the framing to the foundation to resist uplift and
lateral forces.
5. How often must anchor bolts typically be spaced along a sill plate?
A. Every 12 inches
B. Every 4 feet
C. Every 6 feet
D. Every 10 feet
Correct Answer: C
The IRC generally requires anchor bolts spaced no more than 6
feet apart.
6. What is the minimum thickness for a concrete slab-on-grade floor
in a residence?
A. 2 inches
, B. 3 inches
C. 4 inches
D. 6 inches
Correct Answer: C
A 4-inch minimum slab thickness provides adequate strength
and durability.
7. Which lumber grade is commonly used for residential wall
framing?
A. Select Structural
B. Stud Grade
C. No. 2 or better
D. Utility Grade
Correct Answer: C
No. 2 grade lumber meets the strength requirements for
residential framing.
8. What is the standard spacing for wall studs in most residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 19.2 inches on center
D. 24 inches on center
Correct Answer: B
Sixteen inches on center is the most common spacing for wall
studs.
9. What is the minimum width required for a stairway in a
residential dwelling?
A. 30 inches
B. 32 inches
C. 36 inches
Exam With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. Which code is most commonly adopted in Texas for residential
construction inspections?
A. International Building Code (IBC)
B. International Mechanical Code (IMC)
C. International Residential Code (IRC)
D. National Electrical Code (NEC)
Correct Answer: C
The IRC is specifically designed for one- and two-family dwellings
and is the primary code used for residential inspections in Texas.
2. What is the minimum ceiling height required for habitable rooms
under the IRC?
A. 6 feet 4 inches
B. 7 feet
C. 7 feet 6 inches
D. 8 feet
Correct Answer: B
The IRC requires a minimum ceiling height of 7 feet for habitable
spaces to ensure occupant comfort and safety.
,3. Which foundation type is most commonly used in Texas
residential construction?
A. Basement foundation
B. Pier and beam
C. Slab-on-grade
D. Pile foundation
Correct Answer: C
Slab-on-grade foundations are common in Texas due to soil
conditions and climate.
4. What is the primary purpose of anchor bolts in residential
construction?
A. Support roof framing
B. Prevent wall cracking
C. Secure the structure to the foundation
D. Improve insulation
Correct Answer: C
Anchor bolts tie the framing to the foundation to resist uplift and
lateral forces.
5. How often must anchor bolts typically be spaced along a sill plate?
A. Every 12 inches
B. Every 4 feet
C. Every 6 feet
D. Every 10 feet
Correct Answer: C
The IRC generally requires anchor bolts spaced no more than 6
feet apart.
6. What is the minimum thickness for a concrete slab-on-grade floor
in a residence?
A. 2 inches
, B. 3 inches
C. 4 inches
D. 6 inches
Correct Answer: C
A 4-inch minimum slab thickness provides adequate strength
and durability.
7. Which lumber grade is commonly used for residential wall
framing?
A. Select Structural
B. Stud Grade
C. No. 2 or better
D. Utility Grade
Correct Answer: C
No. 2 grade lumber meets the strength requirements for
residential framing.
8. What is the standard spacing for wall studs in most residential
construction?
A. 12 inches on center
B. 16 inches on center
C. 19.2 inches on center
D. 24 inches on center
Correct Answer: B
Sixteen inches on center is the most common spacing for wall
studs.
9. What is the minimum width required for a stairway in a
residential dwelling?
A. 30 inches
B. 32 inches
C. 36 inches
