TEXAS STRUCTURAL INSPECTOR
CERTIFICATION EXAM ACTUAL 2026
VERIFIED QUESTIONS WITH ANSWERS
COMPREHENSIVE & RATIONALE|INSTANT
DOWNLOAD
1. During a structural inspection of a newly completed commercial
building in Texas, which condition would most likely require
immediate corrective action because it directly threatens structural
stability?
A. Hairline shrinkage cracks in non-load-bearing plaster
B. Minor paint blistering on interior drywall
C. Severely corroded anchor bolts supporting a primary steel column
base plate
D. Slight color variation in exposed concrete
Answer: C. Severely corroded anchor bolts supporting a primary
steel column base plate
Rationale: Anchor bolts transfer structural loads from steel columns
into the foundation. Severe corrosion reduces their load-carrying
capacity and can lead to catastrophic structural failure. Cosmetic
defects such as paint blistering, plaster shrinkage, and color variation
generally do not compromise structural integrity.
2. Which inspection technique provides the most accurate assessment
of hidden reinforcing steel placement within hardened concrete
without destructive demolition?
A. Schmidt rebound hammer
B. Ground-penetrating radar (GPR)
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,C. Moisture meter
D. Infrared thermometer
Answer: B. Ground-penetrating radar (GPR)
Rationale: Ground-penetrating radar identifies reinforcing steel
location, concrete cover, conduit placement, and embedded objects
without damaging the structure. Rebound hammers estimate surface
hardness, while moisture meters and infrared thermometers measure
different properties.
3. During inspection of a steel moment-resisting frame, the discovery
of incomplete joint penetration welds primarily affects which
structural performance?
A. Fire resistance only
B. Wind and seismic load resistance
C. Roof insulation performance
D. Thermal expansion characteristics
Answer: B. Wind and seismic load resistance
Rationale: Moment frames depend on fully developed welded
connections to resist lateral forces from wind and earthquakes.
Incomplete weld penetration significantly reduces moment transfer
capacity and may result in brittle failure.
4. Which foundation defect is most indicative of differential
settlement?
A. Uniform hairline floor cracking throughout the slab
B. Diagonal stair-step cracking in masonry walls extending from
window corners
2
,C. Peeling paint near ceilings
D. Uniform discoloration of exterior brick
Answer: B. Diagonal stair-step cracking in masonry walls extending
from window corners
Rationale: Differential settlement causes uneven foundation movement,
producing diagonal cracks around openings where stress concentrations
develop. Uniform cracking generally reflects shrinkage rather than
structural movement.
5. The principal purpose of reinforcing steel in reinforced concrete
beams is to:
A. Reduce concrete density
B. Resist tensile stresses
C. Increase thermal insulation
D. Prevent carbonation
Answer: B. Resist tensile stresses
Rationale: Concrete possesses excellent compressive strength but poor
tensile strength. Reinforcing steel carries tensile forces while
maintaining compatibility with concrete due to similar thermal
expansion characteristics.
6. Which inspection finding indicates possible overstressing of a
timber roof truss?
A. Uniform paint fading
B. Bowed compression members with connector plate withdrawal
C. Surface dust accumulation
D. Minor nail discoloration
3
, Answer: B. Bowed compression members with connector plate
withdrawal
Rationale: Compression member buckling and connector plate
withdrawal suggest structural overload or long-term deformation.
Cosmetic conditions have little structural significance.
7. Excessive concrete honeycombing primarily results from:
A. Excessive curing time
B. Poor consolidation during placement
C. High cement content
D. Over-reinforcement only
Answer: B. Poor consolidation during placement
Rationale: Honeycombing occurs when trapped air remains in concrete
due to inadequate vibration, reducing strength, durability, and bond
with reinforcing steel.
8. During inspection of masonry construction, efflorescence primarily
indicates:
A. Excessive structural loading
B. Moisture migration through masonry carrying soluble salts
C. Foundation collapse
D. Reinforcement fracture
Answer: B. Moisture migration through masonry carrying soluble
salts
Rationale: Efflorescence is produced when water dissolves salts within
masonry and deposits them on the surface after evaporation, indicating
moisture movement rather than structural distress.
4
CERTIFICATION EXAM ACTUAL 2026
VERIFIED QUESTIONS WITH ANSWERS
COMPREHENSIVE & RATIONALE|INSTANT
DOWNLOAD
1. During a structural inspection of a newly completed commercial
building in Texas, which condition would most likely require
immediate corrective action because it directly threatens structural
stability?
A. Hairline shrinkage cracks in non-load-bearing plaster
B. Minor paint blistering on interior drywall
C. Severely corroded anchor bolts supporting a primary steel column
base plate
D. Slight color variation in exposed concrete
Answer: C. Severely corroded anchor bolts supporting a primary
steel column base plate
Rationale: Anchor bolts transfer structural loads from steel columns
into the foundation. Severe corrosion reduces their load-carrying
capacity and can lead to catastrophic structural failure. Cosmetic
defects such as paint blistering, plaster shrinkage, and color variation
generally do not compromise structural integrity.
2. Which inspection technique provides the most accurate assessment
of hidden reinforcing steel placement within hardened concrete
without destructive demolition?
A. Schmidt rebound hammer
B. Ground-penetrating radar (GPR)
1
,C. Moisture meter
D. Infrared thermometer
Answer: B. Ground-penetrating radar (GPR)
Rationale: Ground-penetrating radar identifies reinforcing steel
location, concrete cover, conduit placement, and embedded objects
without damaging the structure. Rebound hammers estimate surface
hardness, while moisture meters and infrared thermometers measure
different properties.
3. During inspection of a steel moment-resisting frame, the discovery
of incomplete joint penetration welds primarily affects which
structural performance?
A. Fire resistance only
B. Wind and seismic load resistance
C. Roof insulation performance
D. Thermal expansion characteristics
Answer: B. Wind and seismic load resistance
Rationale: Moment frames depend on fully developed welded
connections to resist lateral forces from wind and earthquakes.
Incomplete weld penetration significantly reduces moment transfer
capacity and may result in brittle failure.
4. Which foundation defect is most indicative of differential
settlement?
A. Uniform hairline floor cracking throughout the slab
B. Diagonal stair-step cracking in masonry walls extending from
window corners
2
,C. Peeling paint near ceilings
D. Uniform discoloration of exterior brick
Answer: B. Diagonal stair-step cracking in masonry walls extending
from window corners
Rationale: Differential settlement causes uneven foundation movement,
producing diagonal cracks around openings where stress concentrations
develop. Uniform cracking generally reflects shrinkage rather than
structural movement.
5. The principal purpose of reinforcing steel in reinforced concrete
beams is to:
A. Reduce concrete density
B. Resist tensile stresses
C. Increase thermal insulation
D. Prevent carbonation
Answer: B. Resist tensile stresses
Rationale: Concrete possesses excellent compressive strength but poor
tensile strength. Reinforcing steel carries tensile forces while
maintaining compatibility with concrete due to similar thermal
expansion characteristics.
6. Which inspection finding indicates possible overstressing of a
timber roof truss?
A. Uniform paint fading
B. Bowed compression members with connector plate withdrawal
C. Surface dust accumulation
D. Minor nail discoloration
3
, Answer: B. Bowed compression members with connector plate
withdrawal
Rationale: Compression member buckling and connector plate
withdrawal suggest structural overload or long-term deformation.
Cosmetic conditions have little structural significance.
7. Excessive concrete honeycombing primarily results from:
A. Excessive curing time
B. Poor consolidation during placement
C. High cement content
D. Over-reinforcement only
Answer: B. Poor consolidation during placement
Rationale: Honeycombing occurs when trapped air remains in concrete
due to inadequate vibration, reducing strength, durability, and bond
with reinforcing steel.
8. During inspection of masonry construction, efflorescence primarily
indicates:
A. Excessive structural loading
B. Moisture migration through masonry carrying soluble salts
C. Foundation collapse
D. Reinforcement fracture
Answer: B. Moisture migration through masonry carrying soluble
salts
Rationale: Efflorescence is produced when water dissolves salts within
masonry and deposits them on the surface after evaporation, indicating
moisture movement rather than structural distress.
4
