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100+ Free SC Marine Practice Questions

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2026 Statistics

Key Facts: SC Marine 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 60

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 Marine Contractor Examination is the official CLB/PSI open-book exam: 50 questions, 70% (35 of 50), 3 hours, USD 60 (bulletin updated 5/15/2025). Official delivery is English.

Sample SC Marine Practice Questions

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

1On a Charleston Harbor dock reconstruction, employees work from an unguarded barge deck over open water where a drowning hazard exists. OSHA 29 CFR 1926.106 requires those employees to be provided with which of the following?
A.U.S. Coast Guard-approved life jackets or buoyant work vests
B.Any foam boat cushion kept in the crane cab
C.A fall-arrest harness with no flotation
D.Only a throwable seat cushion at the gangway
Explanation: OSHA 1926.106(a) requires U.S. Coast Guard-approved life jackets or buoyant work vests when employees work over or near water and a drowning hazard exists. An unapproved cushion is not an acceptable personal flotation device, and a harness addresses fall arrest rather than flotation.
2At a Cooper River wharf job with a drowning hazard, OSHA 1926.106 requires ring buoys that meet which combination of line length and spacing?
A.At least 50 feet of line, spaced not more than 300 feet apart
B.At least 75 feet of line, spaced not more than 150 feet apart
C.At least 90 feet of line, spaced not more than 200 feet apart
D.At least 120 feet of line, spaced not more than 400 feet apart
Explanation: OSHA 1926.106(c) requires ring buoys with at least 90 feet of line, readily available for rescue, with the distance between ring buoys not exceeding 200 feet. Those two numbers are the marine rescue dimensions commonly tested on contractor exams.
3OSHA 29 CFR 1926.106 requires which rescue-craft provision at locations where employees work over or adjacent to water?
A.At least one lifesaving skiff immediately available
B.A Coast Guard cutter standing by within 5 miles
C.Two commercial dive teams on 30-minute call
D.Only a charged cell phone with the harbor master's number
Explanation: OSHA 1926.106(d) requires at least one lifesaving skiff to be immediately available where employees work over or adjacent to water. Distant standby vessels, on-call divers, and communication alone do not satisfy the immediately available skiff rule.
4Under OSHA 1926.106, when must buoyant work vests or life preservers be inspected for defects that would reduce strength or buoyancy?
A.Only at the start of the project
B.Only after a worker falls in the water
C.Once each calendar year
D.Prior to and after each use
Explanation: OSHA 1926.106(b) requires inspection of buoyant work vests or life preservers prior to and after each use. Defective units must not be used. A one-time, annual, or after-incident look is not enough on abrasive, wet marine work.
5OSHA 1926.605 requires that the vicinity of each barge in use have at least which combination of lifesaving equipment?
A.A U.S. Coast Guard-approved 30-inch lifering with not less than 90 feet of line, plus a ladder that reaches from the apron to the water
B.A 24-inch ring with 50 feet of line and no ladder
C.Two unapproved throw cushions and a boat hook
D.Only a life jacket locker on the adjacent pier
Explanation: OSHA 1926.605(d)(2) requires at least one U.S. Coast Guard-approved 30-inch lifering with not less than 90 feet of line, and at least one portable or permanent ladder that will reach from the top of the apron to the water surface. If that gear is not already at the pier, the employer must furnish it while working the barge.
6Before driving piles or excavating for a bulkhead that does not involve a subaqueous facility, South Carolina law requires the excavator to notify SC811 within which window, not counting the day notice is given?
A.Three to twelve full working days before the proposed commencement date
B.The same calendar day the excavator plans to start
C.Thirty calendar days before any survey stake is set
D.Only after the first utility is struck
Explanation: S.C. Code § 58-36-60 requires notice to the notification center three to twelve full working days, not including the day notice is given, before the proposed commencement date for excavation or demolition that does not involve a subaqueous facility. Same-day starts and after-damage calls do not satisfy the statute.
7A Beaufort contractor will jet and drive piles near a marked subaqueous utility under a tidal creek. Under S.C. Code § 58-36-60, notice to SC811 must be made within which window, not counting the day notice is given?
A.Ten to twenty full working days before commencement
B.Three to twelve full working days before commencement
C.Twenty-four hours before the first blow
D.Any time during the same calendar week
Explanation: For excavation or demolition in the vicinity of a subaqueous facility, § 58-36-60 requires notice ten to twenty full working days, not including the day notice is given, before the proposed commencement date. The ordinary 3-to-12-day window applies only when a subaqueous facility is not involved.
8An 8-inch-diameter gas main is marked on a Hilton Head bulkhead alignment, and the diameter is known. Under S.C. Code § 58-36-20, the land-side tolerance zone extends how far on each side of the designated center line?
A.12 inches
B.18 inches
C.24 inches plus one-half the known diameter (28 inches)
D.15 feet
Explanation: When the facility diameter is known, the South Carolina tolerance zone is one-half the known diameter plus 24 inches on either side of the designated center line. Half of 8 inches is 4 inches, so the zone is 28 inches each side. The 15-foot clearance is the subaqueous tolerance, not the land-side rule.
9For a marked subaqueous facility under Winyah Bay, S.C. Code § 58-36-20 defines the tolerance zone as which clearance on either side of the indicated facility?
A.24 inches
B.5 feet
C.10 feet
D.15 feet
Explanation: South Carolina defines the subaqueous tolerance zone as a clearance of 15 feet on either side of the indicated facility. The 24-inch-plus-half-diameter rule is the land-side zone and is much tighter than the underwater clearance.
10SC811 locators mark facilities with the APWA Uniform Color Code. Which color identifies gas, oil, steam, petroleum, or gaseous materials?
A.Yellow
B.Red
C.Orange
D.Blue
Explanation: APWA yellow marks gas, oil, steam, petroleum, or gaseous materials. Red is electric, orange is communication, and blue is potable water. Marine contractors must read those colors before jetting, driving, or excavating.

About the SC Marine Exam

The South Carolina Marine 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 60 (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 60 (PSI Services LLC (for the South Carolina Contractor's Licensing Board))

SC Marine Exam Content Outline

12%

Safety - Marine

Safety - Marine (6 items)

50%

Miscellaneous Engineering - Pile Driving

Miscellaneous Engineering - Pile Driving (25 items)

30%

Concrete

Concrete (15 items)

8%

Concrete - Reinforcing Steel

Concrete - Reinforcing Steel (4 items)

How to Pass the SC Marine 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 60

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 Marine 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 Marine 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 Marine exam cost?

PSI lists USD 60 for this examination. The South Carolina Contractor's Licensing Board charges a separate USD 350 license application fee.

Is the SC Marine 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.