ICC 47C REINFORCED CONCRETE CODES MODULE QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
Concrete Quality and Mix Verification
Field and Laboratory Testing Procedures
Reinforcement Quality and Material Identification
Reinforcement Placement, Tolerances, and Concrete Cover
Splices, Mechanical Connections, and Construction Joints
Embeds, Sleeves, and Embedded Items
Concrete Placement, Consolidation, and Segregation Control
Protection and Curing (Cold/Hot Weather)
Regulatory Compliance and IBC Chapter 17 Requirements
Ethics, Professional Standards, and Discrepancy Reporting
,Introduction
This exam assesses competency for the ICC Reinforced Concrete Special Inspector certification (47C module).
It evaluates knowledge of concrete quality verification, reinforcement inspection, field testing, placement
practices, curing requirements, and compliance with the International Building Code (IBC) Chapter 17 and
ACI 318. The assessment uses multiple-choice and scenario-based questions that emphasize real-world
application, critical decision-making, and professional judgment in field inspection contexts. Candidates must
demonstrate ability to identify discrepancies, verify mix designs, inspect reinforcement details, and ensure
proper construction practices before concrete placement hides the work.
Section One: Questions 1–100
Question 1
What is the primary purpose of concrete cover over reinforcing steel in reinforced concrete?
A. To increase the compressive strength of the concrete
B. To protect the reinforcement from corrosion and fire
C. To reduce the cost of the concrete mix
D. To improve the aesthetic appearance of the finished surface
🟢 Correct answer: B
🔴 RATIONALE: Concrete cover protects reinforcement from environmental exposure (corrosion) and
provides fire resistance. It does not significantly affect compressive strength, cost, or aesthetics.
Question 2
Which ASTM standard specifies the procedure for sampling fresh concrete for testing?
,A. ASTM C143
B. ASTM C172
C. ASTM C39
D. ASTM C231
🟢 Correct answer: B
🔴 RATIONALE: ASTM C172 is the standard for sampling fresh concrete. ASTM C143 is for slump test, C39 for
compressive strength, and C231 for air content.
Question 3
A special inspector observes reinforcing steel with a spacing of 7 inches when the drawings specify 6 inches.
What is the inspector's first required action?
A. Redesign the reinforcement pattern in the field
B. Bring the discrepancy to the contractor's attention for correction
C. Ignore it if concrete placement is scheduled
D. Remove the reinforcing steel personally
🟢 Correct answer: B
🔴 RATIONALE: The inspector reports discrepancies to the contractor for correction. The inspector does not
redesign, perform work, or ignore noncompliance.
Question 4
What is the minimum scaled score required to pass an ICC certification module exam?
, A. 65
B. 70
C. 75
D. 80
🟢 Correct answer: C
🔴 RATIONALE: ICC uses scaled scoring with a passing score of 75 for all national certification modules.
Question 5
Which content area carries the largest share of the ICC Reinforced Concrete Special Inspector exam scope?
A. Concrete Quality
B. Reinforcement
C. Formwork, Joints, and Embeds
D. Concrete Placement, Protection, and Curing
🟢 Correct answer: B
🔴 RATIONALE: Reinforcement is 40% of the exam scope, the largest domain, reflecting field risk in bar size,
grade, spacing, cover, and placement.
Question 6
ASTM C143 is the standard test method for which concrete property?
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
Concrete Quality and Mix Verification
Field and Laboratory Testing Procedures
Reinforcement Quality and Material Identification
Reinforcement Placement, Tolerances, and Concrete Cover
Splices, Mechanical Connections, and Construction Joints
Embeds, Sleeves, and Embedded Items
Concrete Placement, Consolidation, and Segregation Control
Protection and Curing (Cold/Hot Weather)
Regulatory Compliance and IBC Chapter 17 Requirements
Ethics, Professional Standards, and Discrepancy Reporting
,Introduction
This exam assesses competency for the ICC Reinforced Concrete Special Inspector certification (47C module).
It evaluates knowledge of concrete quality verification, reinforcement inspection, field testing, placement
practices, curing requirements, and compliance with the International Building Code (IBC) Chapter 17 and
ACI 318. The assessment uses multiple-choice and scenario-based questions that emphasize real-world
application, critical decision-making, and professional judgment in field inspection contexts. Candidates must
demonstrate ability to identify discrepancies, verify mix designs, inspect reinforcement details, and ensure
proper construction practices before concrete placement hides the work.
Section One: Questions 1–100
Question 1
What is the primary purpose of concrete cover over reinforcing steel in reinforced concrete?
A. To increase the compressive strength of the concrete
B. To protect the reinforcement from corrosion and fire
C. To reduce the cost of the concrete mix
D. To improve the aesthetic appearance of the finished surface
🟢 Correct answer: B
🔴 RATIONALE: Concrete cover protects reinforcement from environmental exposure (corrosion) and
provides fire resistance. It does not significantly affect compressive strength, cost, or aesthetics.
Question 2
Which ASTM standard specifies the procedure for sampling fresh concrete for testing?
,A. ASTM C143
B. ASTM C172
C. ASTM C39
D. ASTM C231
🟢 Correct answer: B
🔴 RATIONALE: ASTM C172 is the standard for sampling fresh concrete. ASTM C143 is for slump test, C39 for
compressive strength, and C231 for air content.
Question 3
A special inspector observes reinforcing steel with a spacing of 7 inches when the drawings specify 6 inches.
What is the inspector's first required action?
A. Redesign the reinforcement pattern in the field
B. Bring the discrepancy to the contractor's attention for correction
C. Ignore it if concrete placement is scheduled
D. Remove the reinforcing steel personally
🟢 Correct answer: B
🔴 RATIONALE: The inspector reports discrepancies to the contractor for correction. The inspector does not
redesign, perform work, or ignore noncompliance.
Question 4
What is the minimum scaled score required to pass an ICC certification module exam?
, A. 65
B. 70
C. 75
D. 80
🟢 Correct answer: C
🔴 RATIONALE: ICC uses scaled scoring with a passing score of 75 for all national certification modules.
Question 5
Which content area carries the largest share of the ICC Reinforced Concrete Special Inspector exam scope?
A. Concrete Quality
B. Reinforcement
C. Formwork, Joints, and Embeds
D. Concrete Placement, Protection, and Curing
🟢 Correct answer: B
🔴 RATIONALE: Reinforcement is 40% of the exam scope, the largest domain, reflecting field risk in bar size,
grade, spacing, cover, and placement.
Question 6
ASTM C143 is the standard test method for which concrete property?
