Career upgrade: Learn practical AI skills for better jobs and higher pay.
Level up
PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free ICC S1 Structural Steel and Bolting Practice Questions

Pass your ICC Structural Steel and Bolting Special Inspector (S1) Certification exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free
1 / 100
Question 1
Score: 0/0

Which statement best describes the current ICC credential path for Structural Steel and Bolting Special Inspector?

A
B
C
D
to track
Same family resources

Explore More ICC Certifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

ICC Residential Building Inspector (B1)

Practice QuestionsStudy GuideCheat SheetFlashcards1 video2 blogs

ICC Commercial Building Inspector

Practice Questions1 blog

ICC Commercial Mechanical Inspector (M2)

Practice Questions1 blog

ICC Commercial Plumbing Inspector (P2)

Practice Questions1 blog

ICC Property Maintenance and Housing Inspector

Practice QuestionsCheat Sheet1 video1 blog

ICC Residential Electrical Inspector (E1)

Practice QuestionsCheat Sheet1 blog

More From This Family

Videos and articles for deeper review.

VideoFREE ICC B1 Residential Building Inspector Exam Guide 2026 (2024 IRC, 60 Qs, Pass First Try)VideoFREE ICC Property Maintenance & Housing Inspector Guide 2026 (Exam 64, IPMC 2024, Pass First Try)ArticleFREE ICC B1 Residential Building Inspector Exam Guide 2026 (2024 IRC, 60 Qs, Pass First Try)27 min readArticleFREE ICC B2 Commercial Building Inspector Exam Guide 2026 (2024 IBC, 80 Qs, Pass First Try)15 min readArticleFREE ICC E1 Residential Electrical Inspector Exam Guide 2026 (NEC 2020/2023, 60 Qs, Pass First Try)24 min readArticleFREE ICC M2 Exam Guide 2026: Commercial Mechanical Inspector Study Plan9 min read
2026 Statistics

Key Facts: ICC S1 Structural Steel and Bolting Exam

90

S1 Outline Questions

ICC S1 content outline

3.5 hrs

S1 Outline Duration

ICC S1 content outline

GR+S1C+S1P

Current Credential Path

ICC Special Inspector Certifications

75

Scaled Passing Score

ICC Support

$505+

Module Fees If GR Needed

ICC Store

41%

High-Strength Bolting Weight

ICC S1 content outline

Use the S1 content outline as the content map: 90 multiple-choice questions, 3.5-hour limit, open book, weighted 11% General Requirements, 22% Material Sampling/Testing/Verification, 41% High-Strength Bolting, and 26% Steel Framing Observation. For current registration, ICC lists S1 as a modular credential path: GR (25 questions, 1 hour), S1C Codes (60 questions, 2 hours), and S1P Plans (30 questions, 1.5 hours). ICC National Certification passing score is a scaled 75.

Sample ICC S1 Structural Steel and Bolting Practice Questions

Try these sample questions to test your ICC S1 Structural Steel and Bolting exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which document is the special inspector's primary reference for deciding whether installed structural steel framing and bolting comply with the project requirements?
A.The contractor's preferred erection sequence
B.The approved plans and specifications
C.The steel supplier's marketing catalog
D.The inspector's previous project notes
Explanation: The S1 inspector verifies work against the approved plans, project specifications, and applicable code-referenced standards. Shop drawings and submittals are useful only when they are approved and consistent with the contract documents. Personal preference or past practice cannot replace project-specific approved documents.
2A bolted connection does not match the approved structural drawings. What is the special inspector's first required action?
A.Tell the erector to leave it because the inspector cannot stop work
B.Bring the discrepancy to the contractor's immediate attention for correction
C.Redesign the connection in the field
D.Delete the issue from the daily report if it is corrected later
Explanation: Observed deviations are first brought to the contractor's attention so they can be corrected promptly. If the discrepancy is not corrected, it is reported to the registered design professional and the building official as required by the special inspection process. The inspector documents the condition either way.
3What is the main purpose of a special inspection progress report for structural steel bolting work?
A.To advertise the inspection agency's services
B.To document inspected work, tests observed, and compliance or discrepancies
C.To replace mill test reports for steel materials
D.To authorize substitutions to the structural design
Explanation: Progress reports record what was inspected, what tests were performed or witnessed, and whether the observed work conformed to the approved documents. They create the project record needed by the building official and registered design professional. Reports do not replace material certifications or design approvals.
4Which item best describes the S1 special inspector's role on high-strength bolted steel connections?
A.Verify that bolted work is installed as shown and specified
B.Select the bolt grade after erection starts
C.Approve alternate load paths without engineer review
D.Perform the erector's quality control work
Explanation: The S1 role is to verify materials, bolting procedures, and steel framing details against the approved documents and applicable standards. The inspector is independent of the erector's production quality control. Design decisions and substitutions remain with the design professional and approval process.
5Which report is typically required at the end of the special inspection assignment?
A.A final summary report of required special inspections and unresolved or corrected discrepancies
B.A contractor payment application
C.A new structural calculation package
D.A replacement set of shop drawings
Explanation: The special inspection agency submits a final report summarizing required inspections and indicating whether inspected work was completed in conformance or how discrepancies were resolved. This helps the building official close the special inspection record. It is not a payment, design, or detailing document.
6Which condition is most clearly within the S1 inspector's material verification duties?
A.Confirming that delivered W-shapes match the specified size and grade
B.Choosing the paint color for exposed steel
C.Negotiating the steel subcontract price
D.Determining the architect's finish schedule
Explanation: The S1 outline includes verification that steel shapes and bolts are the type, size, grade, and condition specified in the approved documents. Delivered member identification is a core material verification task. Finish colors, pricing, and architectural schedules are outside that scope.
7What is a mill test report primarily used to verify?
A.The fabricator's payroll hours
B.The chemical and mechanical properties of supplied steel material
C.The crane operator's certification number
D.The architect's occupancy classification
Explanation: Mill test reports provide traceability and show that steel material meets the specified standard, grade, and required chemical and mechanical properties. They support the inspector's material verification. They do not address labor, equipment operators, or occupancy classifications.
8Which high-strength bolt standard designation is commonly used for structural bolt assemblies such as A325 and A490 grades?
A.ASTM F3125
B.ASTM C150
C.ASTM E119
D.ASTM D698
Explanation: ASTM F3125 is the unified specification that covers several high-strength structural bolt grades, including grades commonly known as A325 and A490. The inspector verifies the grade required by the approved documents. The other standards listed address cement, fire testing, or soil compaction.
9Why are bolt head markings important during inspection?
A.They identify the bolt grade or manufacturer information needed for verification
B.They show the final torque value applied to the bolt
C.They prove that the connection is slip-critical
D.They replace the need for pre-installation verification
Explanation: Head markings help identify the bolt grade and manufacturer, supporting traceability to the specified bolting assembly. They do not reveal installed tension, connection type, or test results. The inspector still verifies installation requirements and required documentation.
10What should the inspector verify about bolt storage before installation?
A.That bolts, nuts, and washers are protected from dirt, moisture, and damage as required
B.That all bolts are stored loose in one common bucket
C.That lubricant has been removed from all assemblies
D.That bolts are heated in the field before use
Explanation: Proper storage preserves the condition of bolting assemblies and helps maintain the installation characteristics verified during testing. Mixing, contamination, corrosion, or loss of lubricant can make installation unreliable. Heating bolts or stripping lubricant is not a normal acceptance step.

About the ICC S1 Structural Steel and Bolting Exam

The ICC Structural Steel and Bolting Special Inspector (S1) credential validates inspection knowledge for structural steel framing and high-strength bolted connections. The official S1 content outline covers approved plans and specifications, discrepancy reporting, inspection reports, steel and bolt material verification, material sampling, high-strength bolting, faying surfaces, pre-installation verification, bolt installation and inspection, frame member size and orientation, and base plate observation. ICC's current credential path is modular: candidates complete Special Inspector General Requirements (GR), Structural Steel and Bolting Codes (S1C), and Structural Steel and Bolting Plans (S1P), with GR treated as a one-time special inspector requirement.

Assessment

S1 content outline: 90 multiple-choice questions. Current credential path: GR (25 questions), S1C Codes (60 questions), and S1P Plans (30 questions).

Time Limit

3.5 hours on the S1 content outline; current modules total 4.5 hours if GR is required

Passing Score

Scaled score of 75 per ICC National Certification exam/module

Exam Fee

$505 minimum if GR is required; $420 for S1C + S1P if GR is already satisfied (International Code Council (ICC) through PRONTO / Pearson VUE)

ICC S1 Structural Steel and Bolting Exam Content Outline

11%

General Requirements

Special inspector duties and responsibilities, use of approved plans/specifications/submittals, notification of discrepancies, progress reports, and final summary reporting.

22%

Material Sampling, Testing, and Verification

Verification of steel shapes and high-strength bolt assemblies by type, size, grade, and condition; test frequency; sample identification; laboratory transport; and material documentation.

41%

High-Strength Bolting

Bolts, nuts, washers, hole types, protected storage, faying surfaces, joint type identification, pre-installation verification, turn-of-nut, calibrated wrench, twist-off tension-control bolts, direct tension indicators, tightening sequence, testing, and inspection.

26%

Steel Framing Observation

Structural frame orientation, member sizes, connection details, base plate configuration, anchor rod fit-up, base plate hole size, grout clearance, grout placement, sampling, seating, and fastening.

How to Pass the ICC S1 Structural Steel and Bolting Exam

What You Need to Know

  • Passing score: Scaled score of 75 per ICC National Certification exam/module
  • Assessment: S1 content outline: 90 multiple-choice questions. Current credential path: GR (25 questions), S1C Codes (60 questions), and S1P Plans (30 questions).
  • Time limit: 3.5 hours on the S1 content outline; current modules total 4.5 hours if GR is required
  • Exam fee: $505 minimum if GR is required; $420 for S1C + S1P if GR is already satisfied

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

ICC S1 Structural Steel and Bolting Study Tips from Top Performers

1Treat the S1 outline as your content map, but plan registration around the current GR + S1C + S1P modular path.
2Memorize the four S1 weights: General Requirements 11%, Material Verification 22%, High-Strength Bolting 41%, and Steel Framing Observation 26%.
3Practice finding answers in approved plans, specifications, schedules, and connection details instead of relying only on field experience.
4Master RCSC joint type logic: snug-tightened, pretensioned, and slip-critical joints have different inspection requirements.
5Know when faying surface condition matters: slip-critical joints require more than just correct bolt pretension.
6Build a reporting checklist for discrepancies: notify the contractor, document the issue, and escalate uncorrected items to the registered design professional and building official.
7For materials, drill bolt head markings, ASTM F3125 grades, nut/washer compatibility, mill test reports, lot traceability, and protected storage.
8For plans, repeatedly practice member mark, grid, base plate, anchor rod, hole type, bolt diameter, and joint type lookups under time pressure.

Frequently Asked Questions

What is the ICC S1 Structural Steel and Bolting Special Inspector certification?

It is ICC's special inspector credential for structural steel framing and high-strength bolted connections. The S1 content outline focuses on approved plans and specifications, material verification, high-strength bolting, inspection reports, discrepancy handling, steel framing observation, and base plates.

Is the current ICC S1 path one exam or multiple modules?

The current credential path is modular. ICC lists Special Inspector General Requirements (GR), Structural Steel and Bolting Codes (S1C), and Structural Steel and Bolting Plans (S1P) as the required modules for S1. The older S1 content outline remains a useful integrated content map.

How many questions are on the ICC S1 exam?

The S1 content outline states 90 multiple-choice questions with a 3.5-hour open-book limit. Current ICC store module pages list GR as 25 questions in 1 hour, S1C as 60 questions in 2 hours, and S1P as 30 questions in 1.5 hours.

What score do I need to pass?

ICC states that National Certification exams use a scaled passing score of 75. Passing candidates receive a PASS result rather than a numerical score.

How much does the current modular S1 path cost?

Based on ICC store pages checked on May 20, 2026, GR is listed as low as $85, S1C as low as $210, and S1P as low as $210. That is $505 if all three modules are required, or $420 for S1C plus S1P if GR is already satisfied.

What should I study most for S1?

High-strength bolting is the largest S1 outline area at 41%. Prioritize RCSC/AISC joint types, faying surfaces, pre-installation verification, tightening methods, inspection of installed bolts, and plan details for bolted steel connections.

Does S1 cover structural welding?

S1 is Structural Steel and Bolting. ICC lists Structural Welding as a separate S2 special inspector path, and S2 requires the S1 Structural Steel and Bolting certification as part of that pathway.