Page 1 of 89
Florida Underground Utility Contractor: Exam ACTUAL
Exam ALL 200 QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
Florida Underground Utility Contractor (CUC) license. It covers the technical, safety, and
administrative requirements mandated by the Florida Construction Industry Licensing Board
(CILB) and the Florida Department of Business and Professional Regulation (DBPR).
Florida Underground Utility Contractor: Exam Content Overview
The following content areas are integrated and randomized across all batches of this exam:
• Florida Statutes & Regulations: Chapter 489 (Contracting), Chapter 556 (Underground
Facility Damage Prevention/Sunshine 811), and Florida Building Code.
• Excavation and Shoring: OSHA 29 CFR Part 1926 Subpart P, soil classification, sloping,
benching, and protective systems.
• Piping and Utility Systems: Installation and testing of sanitary sewers, storm drains,
water mains, and gas lines.
• Equipment and Maintenance: Proper use of backhoes, trenchers, and dewatering
systems.
• Mathematics and Estimating: Pipe volume, slope percentages, trench bedding volume,
and cut-and-fill calculations.
• Safety and Environmental: Traffic control (MOT), erosion control (SWPPP), and confined
space entry.
Batch 1: Questions 1–100
(Questions are designed for depth and resourcefulness, focusing on Florida-specific standards
and OSHA mandates.)
1. According to Florida Statute Chapter 556, what is the mandatory timeframe for an
excavator to provide "legal notice" to the Sunshine 811 system before beginning any non-
emergency excavation?
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A. Not less than 24 hours nor more than 5 business days.
B. Not less than 2 business days nor more than 10 business days.
C. Exactly 48 hours excluding weekends and holidays.
D. Not less than 5 business days nor more than 15 business days.
Answer: B.
Rationale: Florida Statute 556.105 requires that an excavator notify the system at least 2 full
business days (but not more than 10) prior to beginning. This ensures member operators have
sufficient time to mark underground facilities.
2. When excavating in "Type C" soil as defined by OSHA Subpart P, what is the maximum
allowable slope for a trench that is 15 feet deep if no shoring is used?
A. 3/4 : 1 (53 degrees)
B. 1 : 1 (45 degrees)
C. 1 1/2 : 1 (34 degrees)
D. 2 : 1 (26 degrees)
Answer: C.
Rationale: Type C soil is the least stable (granular soil, submerged soil). OSHA requires a
maximum slope of 1.5 horizontal to 1 vertical (34 degrees) to prevent cave-ins.
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3. During the installation of a gravity-flow sanitary sewer line, a contractor must maintain a
specific grade. If the pipe runs 250 feet and requires a 1% slope, what is the total drop in
elevation from the start to the end of the run?
A. 1.25 feet
B. 2.0 feet
C. 2.5 feet
D. 5.0 feet
Answer: C.
Rationale: Slope is calculated as $Rise \div Run$. For a 1% slope: $0.01 \times 250\text{ feet} =
2.5\text{ feet}$. Precision in grading is essential to prevent solids deposition in sewer systems.
4. When performing a hydrostatic pressure test on a new water main in Florida, what is the
standard minimum test pressure and duration required for AWWA C600 compliance?
A. 100 psi for 1 hour.
B. 150 psi or 1.5 times the working pressure for at least 2 hours.
C. 200 psi for 30 minutes.
D. 50 psi above working pressure for 24 hours.
Answer: B.
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Rationale: Standard specifications for water main construction require a test pressure of 150
psi (or 1.5x working pressure) maintained for 2 hours to check for leaks and joint integrity.
5. Which of the following safety protocols is mandatory under OSHA when a worker enters a
trench deeper than 4 feet where a hazardous atmosphere could reasonably be expected?
A. The worker must wear a leather apron and face shield.
B. Atmosphere testing must be conducted before entry and periodically thereafter.
C. A ladder must be placed every 50 feet of lateral travel.
D. Only a "Competent Person" is allowed to enter the trench.
Answer: B.
Rationale: Per OSHA 1926.651(g), in trenches deeper than 4 feet where oxygen deficiency or
hazardous fumes may exist (e.g., near sewers or gas lines), air quality testing is mandatory to
prevent asphyxiation or explosions.
6. Under Florida's "Safe Dig" law, if an excavator encounters an unmarked underground
utility line while digging, what is the immediate legal requirement?
A. Continue digging carefully and mark it with white paint.
B. Stop work immediately in the vicinity and contact the Sunshine 811 system or the facility
owner.
C. Relocate the utility line 2 feet to the left of the original path.
4
Florida Underground Utility Contractor: Exam ACTUAL
Exam ALL 200 QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
Florida Underground Utility Contractor (CUC) license. It covers the technical, safety, and
administrative requirements mandated by the Florida Construction Industry Licensing Board
(CILB) and the Florida Department of Business and Professional Regulation (DBPR).
Florida Underground Utility Contractor: Exam Content Overview
The following content areas are integrated and randomized across all batches of this exam:
• Florida Statutes & Regulations: Chapter 489 (Contracting), Chapter 556 (Underground
Facility Damage Prevention/Sunshine 811), and Florida Building Code.
• Excavation and Shoring: OSHA 29 CFR Part 1926 Subpart P, soil classification, sloping,
benching, and protective systems.
• Piping and Utility Systems: Installation and testing of sanitary sewers, storm drains,
water mains, and gas lines.
• Equipment and Maintenance: Proper use of backhoes, trenchers, and dewatering
systems.
• Mathematics and Estimating: Pipe volume, slope percentages, trench bedding volume,
and cut-and-fill calculations.
• Safety and Environmental: Traffic control (MOT), erosion control (SWPPP), and confined
space entry.
Batch 1: Questions 1–100
(Questions are designed for depth and resourcefulness, focusing on Florida-specific standards
and OSHA mandates.)
1. According to Florida Statute Chapter 556, what is the mandatory timeframe for an
excavator to provide "legal notice" to the Sunshine 811 system before beginning any non-
emergency excavation?
1
, Page 2 of 89
A. Not less than 24 hours nor more than 5 business days.
B. Not less than 2 business days nor more than 10 business days.
C. Exactly 48 hours excluding weekends and holidays.
D. Not less than 5 business days nor more than 15 business days.
Answer: B.
Rationale: Florida Statute 556.105 requires that an excavator notify the system at least 2 full
business days (but not more than 10) prior to beginning. This ensures member operators have
sufficient time to mark underground facilities.
2. When excavating in "Type C" soil as defined by OSHA Subpart P, what is the maximum
allowable slope for a trench that is 15 feet deep if no shoring is used?
A. 3/4 : 1 (53 degrees)
B. 1 : 1 (45 degrees)
C. 1 1/2 : 1 (34 degrees)
D. 2 : 1 (26 degrees)
Answer: C.
Rationale: Type C soil is the least stable (granular soil, submerged soil). OSHA requires a
maximum slope of 1.5 horizontal to 1 vertical (34 degrees) to prevent cave-ins.
2
, Page 3 of 89
3. During the installation of a gravity-flow sanitary sewer line, a contractor must maintain a
specific grade. If the pipe runs 250 feet and requires a 1% slope, what is the total drop in
elevation from the start to the end of the run?
A. 1.25 feet
B. 2.0 feet
C. 2.5 feet
D. 5.0 feet
Answer: C.
Rationale: Slope is calculated as $Rise \div Run$. For a 1% slope: $0.01 \times 250\text{ feet} =
2.5\text{ feet}$. Precision in grading is essential to prevent solids deposition in sewer systems.
4. When performing a hydrostatic pressure test on a new water main in Florida, what is the
standard minimum test pressure and duration required for AWWA C600 compliance?
A. 100 psi for 1 hour.
B. 150 psi or 1.5 times the working pressure for at least 2 hours.
C. 200 psi for 30 minutes.
D. 50 psi above working pressure for 24 hours.
Answer: B.
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, Page 4 of 89
Rationale: Standard specifications for water main construction require a test pressure of 150
psi (or 1.5x working pressure) maintained for 2 hours to check for leaks and joint integrity.
5. Which of the following safety protocols is mandatory under OSHA when a worker enters a
trench deeper than 4 feet where a hazardous atmosphere could reasonably be expected?
A. The worker must wear a leather apron and face shield.
B. Atmosphere testing must be conducted before entry and periodically thereafter.
C. A ladder must be placed every 50 feet of lateral travel.
D. Only a "Competent Person" is allowed to enter the trench.
Answer: B.
Rationale: Per OSHA 1926.651(g), in trenches deeper than 4 feet where oxygen deficiency or
hazardous fumes may exist (e.g., near sewers or gas lines), air quality testing is mandatory to
prevent asphyxiation or explosions.
6. Under Florida's "Safe Dig" law, if an excavator encounters an unmarked underground
utility line while digging, what is the immediate legal requirement?
A. Continue digging carefully and mark it with white paint.
B. Stop work immediately in the vicinity and contact the Sunshine 811 system or the facility
owner.
C. Relocate the utility line 2 feet to the left of the original path.
4
