Texas Home Inspector Exam 2026 – 190 Practice Questions with
Answers & Detailed Rationales, Structural, Roofing, Plumbing,
Electrical, HVAC, Interiors, Ventilation, Fireplaces & Texas
Licensing Standards
Domain 1: Structural Systems (Questions 1-19)
Question 1
During an inspection of a pier-and-beam foundation, you observe a pier that is not in vertical
alignment with the beam above it. What is the most likely structural implication?
A. The pier has settled uniformly, requiring only cosmetic repair.
B. The pier is experiencing eccentric loading, which may cause beam rotation or failure.
C. The pier was installed with a manufacturer-approved offset bracket.
D. The beam has expanded due to moisture, causing the misalignment.
Correct Answer: B
Explanation: Offset piers create eccentric loading, concentrating stress on beam edges and
potentially causing rotation or failure. Vertical alignment is critical for load transfer.
Question 2
A concrete slab foundation exhibits a crack that is wider than 1/4 inch and has vertical
displacement of 1/8 inch. How should the inspector report this condition?
A. As a cosmetic defect requiring patching only.
B. As a normal shrinkage crack typical of concrete curing.
,C. As a potential structural issue warranting further evaluation by a licensed engineer.
D. As evidence of a plumbing leak under the slab.
Correct Answer: C
Explanation: Cracks exceeding 1/4 inch with vertical displacement indicate differential
movement, requiring professional structural evaluation.
Question 3
In a wood-frame floor system, you observe a 2x10 floor joist that has been notched 2 inches
deep at its center span. The joist is 16 feet long. What is the maximum permitted notch
depth at this location?
A. 2 inches
B. 1-1/2 inches
C. 1 inch
D. 3/4 inch
Correct Answer: C
Explanation: Notches in the middle third of a joist are limited to 1/6 of the joist depth; for a
2x10 (9-1/4"), maximum is approximately 1-9/16", but conservative practice limits to 1 inch.
Question 4
A masonry wall shows a stair-step crack pattern in the mortar joints that widens toward the
top. What is the most probable cause?
,A. Thermal expansion of the brick units.
B. Differential settlement of the foundation beneath one end of the wall.
C. Improper mortar mix ratio.
D. Freeze-thaw cycling in the brick.
Correct Answer: B
Explanation: Stair-step cracking that widens with height indicates foundation movement
causing rotation or settlement beneath one portion of the wall.
Question 5
During an attic inspection, you discover that a manufactured truss has been modified by
cutting a web member. What action should the inspector take?
A. Approve the modification if it appears to be code-compliant.
B. Report it as a potential structural defect requiring engineering evaluation.
C. Ignore it if the roof shows no visible sagging.
D. Recommend re-attaching the cut member with metal connectors.
Correct Answer: B
Explanation: Cutting truss members voids the manufacturer's engineering certification and
may compromise structural integrity; an engineer must evaluate.
Question 6
What is the minimum required clearance between untreated wood siding and the finished
grade in Texas?
, A. 2 inches
B. 4 inches
C. 6 inches
D. 8 inches
Correct Answer: C
Explanation: TREC Standards of Practice require 6 inches minimum clearance between
untreated wood and grade to prevent moisture intrusion and termite access.
Question 7
A pier-and-beam foundation has a pier that has settled approximately 1 inch, causing a
visible sag in the floor above. What is the appropriate recommendation?
A. Shim the pier with wood blocks to restore level.
B. Re-level the foundation by a qualified foundation repair contractor.
C. Replace the affected pier with a concrete block pier.
D. Ignore because 1-inch settlement is within tolerance.
Correct Answer: B
Explanation: Foundation leveling requires specialized equipment and engineering
knowledge; inspectors should recommend a qualified foundation contractor.
Question 8
Answers & Detailed Rationales, Structural, Roofing, Plumbing,
Electrical, HVAC, Interiors, Ventilation, Fireplaces & Texas
Licensing Standards
Domain 1: Structural Systems (Questions 1-19)
Question 1
During an inspection of a pier-and-beam foundation, you observe a pier that is not in vertical
alignment with the beam above it. What is the most likely structural implication?
A. The pier has settled uniformly, requiring only cosmetic repair.
B. The pier is experiencing eccentric loading, which may cause beam rotation or failure.
C. The pier was installed with a manufacturer-approved offset bracket.
D. The beam has expanded due to moisture, causing the misalignment.
Correct Answer: B
Explanation: Offset piers create eccentric loading, concentrating stress on beam edges and
potentially causing rotation or failure. Vertical alignment is critical for load transfer.
Question 2
A concrete slab foundation exhibits a crack that is wider than 1/4 inch and has vertical
displacement of 1/8 inch. How should the inspector report this condition?
A. As a cosmetic defect requiring patching only.
B. As a normal shrinkage crack typical of concrete curing.
,C. As a potential structural issue warranting further evaluation by a licensed engineer.
D. As evidence of a plumbing leak under the slab.
Correct Answer: C
Explanation: Cracks exceeding 1/4 inch with vertical displacement indicate differential
movement, requiring professional structural evaluation.
Question 3
In a wood-frame floor system, you observe a 2x10 floor joist that has been notched 2 inches
deep at its center span. The joist is 16 feet long. What is the maximum permitted notch
depth at this location?
A. 2 inches
B. 1-1/2 inches
C. 1 inch
D. 3/4 inch
Correct Answer: C
Explanation: Notches in the middle third of a joist are limited to 1/6 of the joist depth; for a
2x10 (9-1/4"), maximum is approximately 1-9/16", but conservative practice limits to 1 inch.
Question 4
A masonry wall shows a stair-step crack pattern in the mortar joints that widens toward the
top. What is the most probable cause?
,A. Thermal expansion of the brick units.
B. Differential settlement of the foundation beneath one end of the wall.
C. Improper mortar mix ratio.
D. Freeze-thaw cycling in the brick.
Correct Answer: B
Explanation: Stair-step cracking that widens with height indicates foundation movement
causing rotation or settlement beneath one portion of the wall.
Question 5
During an attic inspection, you discover that a manufactured truss has been modified by
cutting a web member. What action should the inspector take?
A. Approve the modification if it appears to be code-compliant.
B. Report it as a potential structural defect requiring engineering evaluation.
C. Ignore it if the roof shows no visible sagging.
D. Recommend re-attaching the cut member with metal connectors.
Correct Answer: B
Explanation: Cutting truss members voids the manufacturer's engineering certification and
may compromise structural integrity; an engineer must evaluate.
Question 6
What is the minimum required clearance between untreated wood siding and the finished
grade in Texas?
, A. 2 inches
B. 4 inches
C. 6 inches
D. 8 inches
Correct Answer: C
Explanation: TREC Standards of Practice require 6 inches minimum clearance between
untreated wood and grade to prevent moisture intrusion and termite access.
Question 7
A pier-and-beam foundation has a pier that has settled approximately 1 inch, causing a
visible sag in the floor above. What is the appropriate recommendation?
A. Shim the pier with wood blocks to restore level.
B. Re-level the foundation by a qualified foundation repair contractor.
C. Replace the affected pier with a concrete block pier.
D. Ignore because 1-inch settlement is within tolerance.
Correct Answer: B
Explanation: Foundation leveling requires specialized equipment and engineering
knowledge; inspectors should recommend a qualified foundation contractor.
Question 8
