47C – REINFORCED CONCRETE CODES – QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE |
EXAM PREP | STUDY GUIDE | PRACTICE TEST
CORE DOMAINS
1. Reinforced Concrete Materials and Properties
2. Reinforcing Steel and Reinforcement Detailing
3. Concrete Placement, Consolidation, and Curing
4. Concrete Construction Inspection
5. Reinforcement Development and Splicing
6. Structural Members and Reinforcement Requirements
7. Concrete Cover, Durability, and Protection
8. Construction Joints, Cold Joints, and Embedded Items
9. Quality Control, Testing, and Acceptance
10. Special Inspection Procedures and Code Compliance
INTRODUCTION
The ICC 47C Reinforced Concrete Codes Module focuses on the code requirements and
inspection practices associated with reinforced concrete construction. Candidates are expected
to understand concrete materials, reinforcing steel, placement, consolidation, curing,
reinforcement development, construction joints, durability, and inspection requirements. This
practice test is designed to strengthen both code knowledge and practical judgment. Several
questions place the candidate in realistic inspection situations where the correct decision
depends on recognizing a requirement, identifying a potential deficiency, or determining the
appropriate inspection response. Rather than relying solely on memorization, candidates should
understand why each requirement exists and how it applies during actual reinforced concrete
construction.
SECTION ONE
QUESTIONS 1–50
1. During an inspection of a reinforced concrete member, why is adequate concrete cover
provided over reinforcing steel?
,A. To increase the slump of the concrete
B. To reduce the weight of the member
C. To protect the reinforcement from corrosion and provide required fire protection
D. To eliminate the need for reinforcement development length
Rationale: Adequate cover provides physical and environmental protection to reinforcing steel,
including protection against corrosion and fire exposure. Cover also contributes to the durability
of the reinforced concrete member.
2. A concrete crew is preparing to place concrete containing reinforcing steel. Which
characteristic of fresh concrete is most directly related to how easily the concrete can be
placed and consolidated around reinforcement?
A. Workability
B. Modulus of elasticity
C. Tensile strength
D. Drying shrinkage
Rationale: Workability describes how readily fresh concrete can be mixed, placed, consolidated,
and finished. Adequate workability is particularly important when reinforcement is congested.
3. What is the primary structural purpose of reinforcing steel in a conventional reinforced
concrete beam?
A. To increase concrete density
B. To prevent all cracking
C. To eliminate concrete compression
D. To resist tensile forces that concrete is relatively weak at carrying
Rationale: Concrete performs well in compression but has relatively limited tensile capacity.
Reinforcing steel is incorporated primarily to provide tensile resistance and control cracking.
4. An inspector observes that reinforcing bars have been relocated from their specified
positions to make room for a construction opening that was not shown on the approved
documents. What is the most appropriate response?
A. Allow the change because the bars remain inside the concrete
B. Require the condition to be evaluated and resolved through the appropriate design or
construction authority
C. Direct the concrete crew to cut the bars immediately
D. Ignore the change if the opening appears small
, Rationale: Reinforcement location is a structural requirement, not merely a construction
preference. An unauthorized modification can affect strength and detailing, so it should be
evaluated before proceeding.
5. Which property of hardened concrete is most commonly used to evaluate its ability to
resist compressive loading?
A. Slump
B. Air content
C. Compressive strength
D. Initial setting time
Rationale: Compressive strength is a fundamental property used to evaluate the load-carrying
capacity and specified strength of hardened concrete.
6. A reinforcing bar is identified as a No. 8 bar. What is its nominal diameter?
A. 3/4 inch
B. 7/8 inch
C. 1 inch
D. 1 1/4 inches
Rationale: A No. 8 reinforcing bar has a nominal diameter of 1 inch. Bar size designations
correspond to standardized nominal dimensions.
7. Why is concrete consolidation performed during placement?
A. To increase the water-cement ratio
B. To accelerate corrosion of reinforcement
C. To increase the amount of entrapped air
D. To remove entrapped air and ensure the concrete properly surrounds reinforcement and
fills the forms
Rationale: Proper consolidation reduces unwanted voids and helps concrete fully encase
reinforcement and contact the form surfaces. Poor consolidation can result in honeycombing
and reduced durability.
8. A worker adds water to a concrete truck immediately before discharge without
authorization. Why can this practice be problematic?
A. It always reduces concrete temperature
B. It prevents concrete from setting
C. It can alter the water-cement ratio and adversely affect specified concrete properties
D. It automatically increases compressive strength
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE |
EXAM PREP | STUDY GUIDE | PRACTICE TEST
CORE DOMAINS
1. Reinforced Concrete Materials and Properties
2. Reinforcing Steel and Reinforcement Detailing
3. Concrete Placement, Consolidation, and Curing
4. Concrete Construction Inspection
5. Reinforcement Development and Splicing
6. Structural Members and Reinforcement Requirements
7. Concrete Cover, Durability, and Protection
8. Construction Joints, Cold Joints, and Embedded Items
9. Quality Control, Testing, and Acceptance
10. Special Inspection Procedures and Code Compliance
INTRODUCTION
The ICC 47C Reinforced Concrete Codes Module focuses on the code requirements and
inspection practices associated with reinforced concrete construction. Candidates are expected
to understand concrete materials, reinforcing steel, placement, consolidation, curing,
reinforcement development, construction joints, durability, and inspection requirements. This
practice test is designed to strengthen both code knowledge and practical judgment. Several
questions place the candidate in realistic inspection situations where the correct decision
depends on recognizing a requirement, identifying a potential deficiency, or determining the
appropriate inspection response. Rather than relying solely on memorization, candidates should
understand why each requirement exists and how it applies during actual reinforced concrete
construction.
SECTION ONE
QUESTIONS 1–50
1. During an inspection of a reinforced concrete member, why is adequate concrete cover
provided over reinforcing steel?
,A. To increase the slump of the concrete
B. To reduce the weight of the member
C. To protect the reinforcement from corrosion and provide required fire protection
D. To eliminate the need for reinforcement development length
Rationale: Adequate cover provides physical and environmental protection to reinforcing steel,
including protection against corrosion and fire exposure. Cover also contributes to the durability
of the reinforced concrete member.
2. A concrete crew is preparing to place concrete containing reinforcing steel. Which
characteristic of fresh concrete is most directly related to how easily the concrete can be
placed and consolidated around reinforcement?
A. Workability
B. Modulus of elasticity
C. Tensile strength
D. Drying shrinkage
Rationale: Workability describes how readily fresh concrete can be mixed, placed, consolidated,
and finished. Adequate workability is particularly important when reinforcement is congested.
3. What is the primary structural purpose of reinforcing steel in a conventional reinforced
concrete beam?
A. To increase concrete density
B. To prevent all cracking
C. To eliminate concrete compression
D. To resist tensile forces that concrete is relatively weak at carrying
Rationale: Concrete performs well in compression but has relatively limited tensile capacity.
Reinforcing steel is incorporated primarily to provide tensile resistance and control cracking.
4. An inspector observes that reinforcing bars have been relocated from their specified
positions to make room for a construction opening that was not shown on the approved
documents. What is the most appropriate response?
A. Allow the change because the bars remain inside the concrete
B. Require the condition to be evaluated and resolved through the appropriate design or
construction authority
C. Direct the concrete crew to cut the bars immediately
D. Ignore the change if the opening appears small
, Rationale: Reinforcement location is a structural requirement, not merely a construction
preference. An unauthorized modification can affect strength and detailing, so it should be
evaluated before proceeding.
5. Which property of hardened concrete is most commonly used to evaluate its ability to
resist compressive loading?
A. Slump
B. Air content
C. Compressive strength
D. Initial setting time
Rationale: Compressive strength is a fundamental property used to evaluate the load-carrying
capacity and specified strength of hardened concrete.
6. A reinforcing bar is identified as a No. 8 bar. What is its nominal diameter?
A. 3/4 inch
B. 7/8 inch
C. 1 inch
D. 1 1/4 inches
Rationale: A No. 8 reinforcing bar has a nominal diameter of 1 inch. Bar size designations
correspond to standardized nominal dimensions.
7. Why is concrete consolidation performed during placement?
A. To increase the water-cement ratio
B. To accelerate corrosion of reinforcement
C. To increase the amount of entrapped air
D. To remove entrapped air and ensure the concrete properly surrounds reinforcement and
fills the forms
Rationale: Proper consolidation reduces unwanted voids and helps concrete fully encase
reinforcement and contact the form surfaces. Poor consolidation can result in honeycombing
and reduced durability.
8. A worker adds water to a concrete truck immediately before discharge without
authorization. Why can this practice be problematic?
A. It always reduces concrete temperature
B. It prevents concrete from setting
C. It can alter the water-cement ratio and adversely affect specified concrete properties
D. It automatically increases compressive strength
