Illinois Structural Steel Special Inspector
Examination Advanced Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary responsibility of a structural steel special inspector?
A. Redesign deficient connections
B. Approve the structural engineer’s calculations
C. Verify that observed materials, fabrication, and erection comply with approved
construction documents and applicable requirements
D. Direct the contractor’s erection crew
Answer: Verify that observed materials, fabrication, and erection comply with
approved construction documents and applicable requirements
Rationale: The special inspector provides independent verification of specified
work. The inspector does not assume the engineer’s design authority or the
contractor’s means-and-methods responsibilities.
, 2. Which document establishes the project-specific requirements against
which structural steel work is primarily inspected?
A. The contractor’s safety manual
B. Approved construction documents
C. The equipment manufacturer’s catalog
D. The inspector’s personal checklist
Answer: Approved construction documents
Rationale: Inspection is based on the approved drawings, specifications,
applicable codes, referenced standards, and approved revisions.
3. Which AISC specification is commonly used as a primary structural steel
building standard?
A. AISC 360
B. ACI 318
C. ASCE 24
D. AWS A5.1
Answer: AISC 360
Rationale: AISC 360 provides general requirements for the design and
construction of structural steel buildings.
4. Which organization publishes AWS D1.1/D1.1M?
A. AISC
B. AWS
C. ASTM
D. RCSC
Answer: AWS
Rationale: The American Welding Society publishes AWS D1.1/D1.1M, Structural
Welding Code—Steel, subject to the edition and project requirements.
, 5. Before inspecting steel erection, which information is most important for
the inspector to establish?
A. The contractor's payroll schedule
B. The approved drawings, specifications, inspection requirements, and applicable
standards
C. The crane operator's preferred sequence
D. The steel supplier's marketing literature
Answer: The approved drawings, specifications, inspection requirements, and
applicable standards
Rationale: Effective special inspection begins with understanding the governing
documents and identifying which items require inspection, testing, and
documentation.
6. A mill test report primarily provides information concerning:
A. Erection crew qualifications
B. Steel material identification and specified chemical and mechanical properties
C. Welding machine calibration
D. Bolt pretensioning procedures
Answer: Steel material identification and specified chemical and mechanical
properties
Rationale: Material certifications allow the inspector to verify that supplied
steel corresponds to the specified material grade and required properties.
7. A heat number stamped on structural steel is primarily used to:
A. Determine the member's erection sequence
B. Identify the steel to its production and certification records
C. Establish the weld size
D. Determine bolt pretension
Answer: Identify the steel to its production and certification records
, Rationale: Traceability between the physical material and mill documentation is
essential when material verification is required.
8. A structural member is delivered with markings that cannot be correlated
to the material certifications. What should the inspector do?
A. Accept the member because its dimensions appear correct
B. Paint over the markings
C. Report the traceability problem and require appropriate verification before
acceptance
D. Assume the material grade from its appearance
Answer: Report the traceability problem and require appropriate verification
before acceptance
Rationale: Correct dimensions alone do not establish the required material
grade or properties. Traceability must be resolved through appropriate
documentation or testing.
9. What is the purpose of a steel identification system maintained during
fabrication?
A. To determine the contractor's profit
B. To maintain traceability between drawings, shop fabrication, material
certifications, and erected members
C. To calculate crane capacity
D. To determine fire-resistance ratings
Answer: To maintain traceability between drawings, shop fabrication, material
certifications, and erected members
Rationale: Identification systems allow inspectors to determine exactly which
material and fabricated member was used at a particular location.
10.What is the inspector's best response when a fabricated connection differs
materially from the approved drawings?
Examination Advanced Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. What is the primary responsibility of a structural steel special inspector?
A. Redesign deficient connections
B. Approve the structural engineer’s calculations
C. Verify that observed materials, fabrication, and erection comply with approved
construction documents and applicable requirements
D. Direct the contractor’s erection crew
Answer: Verify that observed materials, fabrication, and erection comply with
approved construction documents and applicable requirements
Rationale: The special inspector provides independent verification of specified
work. The inspector does not assume the engineer’s design authority or the
contractor’s means-and-methods responsibilities.
, 2. Which document establishes the project-specific requirements against
which structural steel work is primarily inspected?
A. The contractor’s safety manual
B. Approved construction documents
C. The equipment manufacturer’s catalog
D. The inspector’s personal checklist
Answer: Approved construction documents
Rationale: Inspection is based on the approved drawings, specifications,
applicable codes, referenced standards, and approved revisions.
3. Which AISC specification is commonly used as a primary structural steel
building standard?
A. AISC 360
B. ACI 318
C. ASCE 24
D. AWS A5.1
Answer: AISC 360
Rationale: AISC 360 provides general requirements for the design and
construction of structural steel buildings.
4. Which organization publishes AWS D1.1/D1.1M?
A. AISC
B. AWS
C. ASTM
D. RCSC
Answer: AWS
Rationale: The American Welding Society publishes AWS D1.1/D1.1M, Structural
Welding Code—Steel, subject to the edition and project requirements.
, 5. Before inspecting steel erection, which information is most important for
the inspector to establish?
A. The contractor's payroll schedule
B. The approved drawings, specifications, inspection requirements, and applicable
standards
C. The crane operator's preferred sequence
D. The steel supplier's marketing literature
Answer: The approved drawings, specifications, inspection requirements, and
applicable standards
Rationale: Effective special inspection begins with understanding the governing
documents and identifying which items require inspection, testing, and
documentation.
6. A mill test report primarily provides information concerning:
A. Erection crew qualifications
B. Steel material identification and specified chemical and mechanical properties
C. Welding machine calibration
D. Bolt pretensioning procedures
Answer: Steel material identification and specified chemical and mechanical
properties
Rationale: Material certifications allow the inspector to verify that supplied
steel corresponds to the specified material grade and required properties.
7. A heat number stamped on structural steel is primarily used to:
A. Determine the member's erection sequence
B. Identify the steel to its production and certification records
C. Establish the weld size
D. Determine bolt pretension
Answer: Identify the steel to its production and certification records
, Rationale: Traceability between the physical material and mill documentation is
essential when material verification is required.
8. A structural member is delivered with markings that cannot be correlated
to the material certifications. What should the inspector do?
A. Accept the member because its dimensions appear correct
B. Paint over the markings
C. Report the traceability problem and require appropriate verification before
acceptance
D. Assume the material grade from its appearance
Answer: Report the traceability problem and require appropriate verification
before acceptance
Rationale: Correct dimensions alone do not establish the required material
grade or properties. Traceability must be resolved through appropriate
documentation or testing.
9. What is the purpose of a steel identification system maintained during
fabrication?
A. To determine the contractor's profit
B. To maintain traceability between drawings, shop fabrication, material
certifications, and erected members
C. To calculate crane capacity
D. To determine fire-resistance ratings
Answer: To maintain traceability between drawings, shop fabrication, material
certifications, and erected members
Rationale: Identification systems allow inspectors to determine exactly which
material and fabricated member was used at a particular location.
10.What is the inspector's best response when a fabricated connection differs
materially from the approved drawings?
