PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free SC Pipelines Practice Questions

Prepare for the South Carolina Pipelines Contractor Examination exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More South Carolina CLB Commercial Contractor Examinations

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

South Carolina Air Conditioning Contractor Examination

Practice Questions

South Carolina Alarm Code of Laws Examination

Practice Questions

South Carolina Asphalt Paving Contractor Examination

Practice Questions

South Carolina Boiler Installation Contractor Examination

Practice Questions

South Carolina Bridges Contractor Examination

Practice Questions

South Carolina Burglar Alarm Contractor Examination

Practice Questions
2026 Statistics

Key Facts: SC Pipelines Exam

50 Q

Official Exam Questions

PSI SC Commercial Contractor CIB updated 5/15/2025

70%

Passing Score

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 Pipelines 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 Pipelines Practice Questions

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

1Under South Carolina's Underground Facility Damage Prevention Act, how far in advance must an excavator notify SC811 before non-subaqueous excavation?
A.Within 3 to 12 full working days, not counting the day notice is given
B.At least 24 hours, including weekends
C.At least 15 calendar days before the start date
D.On the morning work is scheduled to begin
Explanation: S.C. Code Section 58-36-60 requires notice to the notification center within 3 to 12 full working days, not including the day notice is given, before the proposed commencement date for excavation that does not involve a subaqueous facility. Working days exclude Saturday, Sunday, and legal holidays. Starting work before that window, or after the ticket expires, is a violation even if the crew 'called this morning.'
2Using the APWA Uniform Color Code required for SC811 marks, which color identifies gas, oil, steam, and petroleum facilities?
A.Yellow
B.Red
C.Orange
D.Blue
Explanation: APWA yellow marks gas, oil, steam, petroleum, or gaseous materials. Pipeline crews must treat yellow marks as a flammable-product line and use soft excavation in the tolerance zone. Mixing colors (for example treating yellow as electric) is a common field error that leads to line strikes.
3When the diameter of a buried facility is known, what is South Carolina's tolerance zone?
A.24 inches on either side of the designated centerline plus one-half the known diameter
B.12 inches on either side of the mark, regardless of pipe size
C.36 inches from the edge of the right-of-way
D.5 feet on either side of the mark for all gas lines
Explanation: Section 58-36-20 defines the tolerance zone, when diameter is known, as one-half the known diameter plus 24 inches on either side of the designated centerline. If diameter is not marked, the zone is 24 inches on either side of the outside edge of the mark. Subaqueous facilities use a 15-foot clearance on either side.
4How long does a normal SC811 locate notice remain valid once the work-commencement time on the ticket arrives?
A.15 working days after the commencement date and time on the notice
B.10 working days
C.7 calendar days
D.30 calendar days from the day the ticket was called in
Explanation: Section 58-36-60 provides that notice expires 15 working days after the commencement date and time stated on the notice. Excavation may not continue after that period unless a subsequent notice is given. Working days exclude Saturday, Sunday, and legal holidays, so a ticket opened across a holiday week is shorter in calendar time than 15 weekdays.
5What notice window does South Carolina require before excavating in the vicinity of a subaqueous facility?
A.10 to 20 full working days, not including the day notice is given
B.3 to 12 full working days
C.48 hours
D.30 calendar days
Explanation: Subaqueous facilities (under rivers, streams, lakes, swamps, and similar waters) get a longer locate window: 10 to 20 full working days, not including the day notice is given. The extra time reflects the difficulty of locating underwater lines. Using the ordinary 3-to-12-day land window for a river crossing is a statutory miss.
6When an excavation site cannot be clearly identified from the ticket description alone, how must the excavator designate the route before the locator arrives?
A.Pre-mark the route or work area using white paint, flags, or stakes
B.Spray the route with yellow paint so it matches gas marks
C.Leave the locator a voicemail with GPS coordinates only
D.Mark the entire parcel boundary in pink survey paint
Explanation: Section 58-36-60 requires the excavator to pre-mark the route or specific area when the site cannot be clearly identified from the notice. APWA white is the color for proposed excavation. White pre-marks keep locators from marking the wrong side of a lot and are part of positive-response compliance.
7What must a pipeline excavator do in the SC811 positive-response system before breaking ground?
A.Confirm that all operators have responded and that affected facilities have been marked
B.Wait 24 hours after calling, then start regardless of responses
C.Call only the gas operator and ignore other utilities
D.Close the ticket before the first shovel of dirt
Explanation: Section 58-36-60 requires the excavator to check the notification center's positive-response system before excavating or demolishing to ensure every operator has responded and affected facilities are marked. Work may start earlier than the posted commencement date only if every operator has already given an appropriate positive response.
8If a facility's diameter or width is greater than 3 inches, how often must the operator indicate that dimension in the proposed excavation area?
A.Once at each end of the ticket
B.At least every 25 feet
C.Only if the excavator asks in writing
D.Every 100 feet on transmission lines only
Explanation: Section 58-36-70 requires operators to show the horizontal location and description of facilities and, if diameter or width is greater than 3 inches, to indicate that dimension at least every 25 feet in the proposed excavation or demolition area. Multiple facilities in the same trench must be located individually. Those width marks set the half-diameter part of the tolerance zone.
9Under NFPA 30, which flash-point and boiling-point combination defines a Class IB ignitible (flammable) liquid such as gasoline?
A.Flash point below 73°F and boiling point below 100°F
B.Flash point below 73°F and boiling point at or above 100°F
C.Flash point at or above 100°F and below 140°F
D.Flash point at or above 200°F
Explanation: NFPA 30 classifies Class IB liquids as those with a flash point below 73°F (22.8°C) and a boiling point at or above 100°F (37.8°C). Gasoline is the classic Class IB example. Class IA liquids also flash below 73°F but boil below 100°F (for example diethyl ether). The class drives tank, piping, venting, and electrical-area rules.
10A diesel fuel with a flash point of 125°F is stored at a pipeline pump station. How does NFPA 30 classify that liquid?
A.Class II combustible liquid
B.Class IC flammable liquid
C.Class IB flammable liquid
D.Class IIIB combustible liquid
Explanation: NFPA 30 Class II combustible liquids have a flash point at or above 100°F (37.8°C) and below 140°F (60°C). Typical No. 2 diesel sits in that band (often about 125°F). Class II liquids are still ignitible and need listed tanks, tight piping, and controlled ignition sources, but they are not Class I flammables.

About the SC Pipelines Exam

The South Carolina Pipelines 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 (Candidate Information Bulletin updated 5/15/2025). Candidates must also pass Business Management and Law for Commercial Contractor. This bank is an English-language MCQ study adaptation. It does not replace required trade experience, board approval, or the official examination.

Assessment

Open-book computer-based multiple-choice. Allowed references include OSHA 29 CFR 1926, NFPA 30 (2021 or 2024), ASME B31.8 (2014, 2018, or 2024), Pipefitter's Handbook (3rd), Pipe Welding Procedures (1973), and the South Carolina 811 Excavator Manual.

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 Pipelines Exam Content Outline

20%

Code Compliance

Code Compliance (10 items)

56%

Piping

Piping (28 items)

12%

Welding

Welding (6 items)

12%

Safety

Safety (6 items)

How to Pass the SC Pipelines Exam

What You Need to Know

  • Passing score: 70% (35 of 50)
  • Assessment: Open-book computer-based multiple-choice. Allowed references include OSHA 29 CFR 1926, NFPA 30 (2021 or 2024), ASME B31.8 (2014, 2018, or 2024), Pipefitter's Handbook (3rd), Pipe Welding Procedures (1973), and the South Carolina 811 Excavator Manual.
  • 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 Pipelines 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; temporary tabs such as Post-it notes are prohibited
3Pass Business Management and Law for Commercial Contractor in addition to this technical examination
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 Pipelines Contractor Examination?

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

How much does this PSI examination cost?

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

Is this examination open book?

Yes. PSI lists the South Carolina commercial contractor examinations as open book. Listed references include ASME B31.8, NFPA 30, and OSHA 29 CFR 1926.

Which piping code is listed for the SC Pipelines exam?

The PSI bulletin lists ASME B31.8, Gas Transmission and Distribution Piping Systems (2014, 2018, or 2024), and NFPA 30.