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100+ Free SC Concrete Practice Questions

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2026 Statistics

Key Facts: SC Concrete Exam

50 Q

Official Exam Questions

PSI SC Commercial Contractor CIB updated 5/15/2025

70%

Passing Score (35 of 50)

PSI SC Commercial Contractor CIB updated 5/15/2025

3 hours

Time Allowed

PSI SC Commercial Contractor CIB updated 5/15/2025

USD 75

PSI Exam Fee

PSI SC Commercial Contractor CIB updated 5/15/2025

Open Book

Book Policy

PSI SC Commercial Contractor CIB updated 5/15/2025

South Carolina Concrete Contractor Examination is the official CLB/PSI open-book exam: 50 questions, 70% (35 of 50), 3 hours, USD 75 (bulletin updated 5/15/2025). Official delivery is English.

Sample SC Concrete Practice Questions

Try these sample questions to test your SC Concrete exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Per OSHA 1926 Subpart Q, which practice is prohibited during concrete placement?
A.Routing an elevated bucket so fewer workers are under the travel path
B.Riding a concrete bucket to the placement elevation
C.Guarding protruding dowels with mushroom caps
D.Wearing a face shield while shooting a cement-sand-water mix
Explanation: OSHA 1926.701(d) states that no employee shall be permitted to ride concrete buckets. The same section separately requires impalement protection on protruding steel, routing of elevated buckets to limit exposure, and head-and-face protection when a cement-sand-water mixture is applied through a pneumatic hose.
2OSHA requires protruding reinforcing steel that employees could fall onto or into to be guarded for what purpose?
A.To eliminate the hazard of impalement
B.To keep the bars clean for bonding
C.To maintain the specified concrete cover
D.To prevent the cage from overturning
Explanation: OSHA 1926.701(b) requires all protruding reinforcing steel, onto and into which employees could fall, to be guarded to eliminate the hazard of impalement. Typical field controls are mushroom caps, troughs, or wooden covers. Cover, cleanliness, and cage stability are real placement issues, but they are not the purpose of this OSHA rule.
3While a concrete bucket is being elevated or lowered into position, OSHA 1926.701(e) requires that:
A.No employee shall be permitted to work under the bucket
B.Only the pump operator may stand under the bucket
C.A spotter may work under the bucket if wearing a hard hat
D.Employees may work under the bucket if it has a positive safety latch
Explanation: OSHA 1926.701(e)(1) prohibits employees from working under concrete buckets while the buckets are being elevated or lowered into position. Paragraph (e)(2) also requires elevated buckets to be routed, to the extent practical, so that no employee or the fewest number of employees are exposed. A hard hat or a dump-gate latch does not create an exception.
4During post-tensioning operations, OSHA 1926.701(c) requires which combination of controls?
A.Only a verbal warning before stressing, with no access restriction
B.No employee except those essential to the work behind the jack, plus signs and barriers limiting access
C.Employees may stand behind the jack if they stay 6 feet away
D.A fire watch posted at the stressing jack for the full jacking cycle
Explanation: OSHA 1926.701(c) has two concurrent requirements: (1) no employee except those essential to the post-tensioning operations shall be behind the jack during tensioning, and (2) signs and barriers shall be erected to limit employee access to the post-tensioning area. A 6-foot offset or a verbal warning alone does not satisfy the standard.
5An employee is applying a cement, sand, and water mixture through a pneumatic hose. Which PPE does OSHA 1926.701(f) specifically require?
A.Metatarsal guards and a welding hood
B.Protective head and face equipment
C.A Class III harness and a chin strap
D.A supplied-air respirator and hearing protection
Explanation: OSHA 1926.701(f) states that no employee shall apply a cement, sand, and water mixture through a pneumatic hose unless the employee is wearing protective head and face equipment. The rule is written for shotcrete and similar pneumatic application, where rebound and spray create an eye and face hazard. Other PPE may also be required by other standards, but head-and-face protection is the specific Subpart Q requirement.
6When may construction loads be placed on a newly cast concrete structure under OSHA 1926.701(a)?
A.After the employer determines, based on information from a person qualified in structural design, that the structure can support the loads
B.As soon as the surface can be walked on without leaving footprints
C.After any 12-hour waiting period, regardless of strength
D.Only after the 28-day specified compressive strength is confirmed
Explanation: OSHA 1926.701(a) prohibits placing construction loads on a concrete structure unless the employer determines, based on information from a person qualified in structural design, that the structure or portion of it is capable of supporting those loads. Walkability, a fixed clock time, or a mandatory 28-day wait are not the OSHA test. Form stripping has a related but separate rule in 1926.703(e).
7Concrete mixers with 1 cubic yard (0.8 m³) or larger loading skips must be equipped with which OSHA 1926.702(b) features?
A.A mechanical device to clear the skip of materials and guardrails on each side of the skip
B.A deadman switch on the skip and a 100-percent-overload hoist
C.Nonconductive skip handles and a semicircular blade guard
D.Positive fail-safe hose connectors and a lockout tag that reads Do Not Start
Explanation: OSHA 1926.702(b) requires mixers with 1 cubic yard or larger loading skips to have (1) a mechanical device to clear the skip of materials and (2) guardrails installed on each side of the skip. The other listed devices belong to different 1926.702 paragraphs (trowels, pumps, saws, and lockout).
8A walk-behind power trowel that is manually guided must have which OSHA control?
A.A control switch that automatically shuts off power when the operator’s hands leave the handles
B.A two-hand travel-restricting interlock that locks the blades at 90 rpm
C.A ground-fault circuit interrupter built into each handle grip
D.A mechanical parking pawl that engages whenever the machine is tilted
Explanation: OSHA 1926.702(c) requires powered, rotating, manually guided troweling machines to have a control switch that automatically shuts off the power whenever the operator’s hands are removed from the equipment handles. That deadman function prevents an unmanned machine from continuing to spin and travel.
9Concrete pumping systems that use discharge pipes must have pipe supports designed for what OSHA overload?
A.25 percent overload
B.50 percent overload
C.100 percent overload
D.200 percent overload
Explanation: OSHA 1926.702(e)(1) requires concrete pumping systems using discharge pipes to be provided with pipe supports designed for 100 percent overload. Paragraph (e)(2) separately requires compressed-air hoses on pumping systems to have positive fail-safe joint connectors so sections cannot separate when pressurized.
10A tilt-up wall panel will be lifted with embedded inserts. Under OSHA 1926.704, those tilt-up inserts must be capable of supporting at least:
A.Two times the maximum intended load
B.The maximum intended load with no extra factor
C.Four times the maximum intended load
D.Five times the maximum intended load
Explanation: OSHA 1926.704 sets three different capacity factors: tilt-up lifting inserts at least 2 times the maximum intended load; lifting inserts in other precast members at least 4 times; and lifting hardware at least 5 times. Mixing those three numbers is a common exam error. The panel must also stay braced until permanent connections are complete.

About the SC Concrete Exam

The South Carolina Concrete Contractor Examination is the official CLB classification examination administered by PSI. The official exam has 50 scored questions. Passing is 70% (35 of 50) in 3 hours. The examination is open book. PSI lists USD 75 (South Carolina Commercial Contractor Candidate Information Bulletin updated 5/15/2025). All commercial general and mechanical contractor candidates must pass the Business Management and Law for Commercial Contractor Examination in addition to this technical examination. LLR charges a separate USD 350 license application fee. This bank is an English-language MCQ study adaptation. It does not replace required trade experience, board approval, financial statements or bonds, or the official examination.

Assessment

Open-book computer-based multiple-choice. Allowed references are listed in the South Carolina Commercial Contractor Candidate Information Bulletin updated 5/15/2025.

Time Limit

3 hours

Passing Score

70% (35 of 50)

Exam Fee

USD 75 (PSI Services LLC (for the South Carolina Contractor's Licensing Board))

SC Concrete Exam Content Outline

12%

Safety

Safety (6 items)

14%

Concrete - Earthwork

Concrete - Earthwork (7 items)

30%

Concrete

Concrete (15 items)

20%

Concrete - Reinforcement

Concrete - Reinforcement (10 items)

24%

Concrete - Formwork

Concrete - Formwork (12 items)

How to Pass the SC Concrete Exam

What You Need to Know

  • Passing score: 70% (35 of 50)
  • Assessment: Open-book computer-based multiple-choice. Allowed references are listed in the South Carolina Commercial Contractor Candidate Information Bulletin updated 5/15/2025.
  • Time limit: 3 hours
  • Exam fee: USD 75

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

SC Concrete Study Tips from Top Performers

1Distribute study time to the official PSI content outline (bulletin updated 5/15/2025)
2Use only the PSI-listed references for this classification
3Temporary tabs such as Post-it notes are prohibited in the PSI center
4This bank is an English-language MCQ study aid, not an official PSI form

Frequently Asked Questions

How many questions are on the South Carolina Concrete Contractor Examination?

The official PSI examination has 50 scored questions. Passing is 70% (35 of 50) within 3 hours (South Carolina Commercial Contractor Candidate Information Bulletin updated 5/15/2025).

How much does the SC Concrete exam cost?

PSI lists USD 75 for this examination. The South Carolina Contractor's Licensing Board charges a separate USD 350 license application fee.

Is the SC Concrete exam open book?

Yes. PSI lists the commercial contractor examinations as open book. Candidates may bring the PSI-listed references for this classification. Temporary tabs such as Post-it notes are prohibited.

Do I also need the Business Management and Law examination?

Yes. All commercial general and mechanical contractor candidates must pass the Business Management and Law for Commercial Contractor Examination in addition to this technical examination. Burglar and fire alarm candidates take the Alarm Code of Laws Examination instead.