Florida Underground Utility Contractor (CUC) Exam |
QUESTIONS AND ANSWERS | 2025/2026 | Latest
EDITION| Instant download !!
1. Which activity falls under the scope of a Florida Underground Utility Contractor
license?
A. Structural concrete framing
B. Installation of potable water, sewer, and storm drainage systems
C. Electrical conduit above grade only
D. Roofing and waterproofing
Correct Answer: B
Rationale:
CUC contractors are authorized to install, repair, and modify underground water, sewer,
stormwater, and related utility systems.
2. Before excavation begins in Florida, which action is legally required?
A. Notify the building department only
B. Call Sunshine 811 to locate underground utilities
C. Obtain verbal permission from neighbors
D. Submit final inspection paperwork
Correct Answer: B
,Rationale:
Florida law requires contractors to contact Sunshine 811 to prevent damage to existing
underground utilities.
3. What is the primary purpose of trench shoring?
A. Speed up excavation
B. Prevent soil collapse and protect workers
C. Improve pipe alignment
D. Reduce inspection frequency
Correct Answer: B
Rationale:
Shoring protects workers from cave-ins, a leading cause of excavation fatalities.
4. Which soil condition presents the greatest trench collapse risk?
A. Solid rock
B. Clay
C. Saturated or loose soil
D. Compacted gravel
Correct Answer: C
Rationale:
Loose or water-saturated soil lacks cohesion and is highly unstable.
5. What minimum slope ratio is commonly required for trenching in unstable soil?
,A. 1:1
B. 1.5:1
C. 2:1
D. Vertical walls allowed
Correct Answer: B
Rationale:
OSHA trenching standards require gentler slopes in unstable soil to prevent collapse.
6. What is the function of bedding material under underground pipes?
A. Reduce material cost
B. Support, level, and protect the pipe
C. Improve water pressure
D. Prevent corrosion
Correct Answer: B
Rationale:
Proper bedding ensures uniform support and prevents stress fractures.
7. Which pipe material is commonly used for sanitary sewer systems in Florida?
A. Copper
B. PVC
C. Aluminum
D. Galvanized steel
Correct Answer: B
, Rationale:
PVC is corrosion-resistant, lightweight, and approved for sewer applications.
8. What is the purpose of a cleanout in a sewer system?
A. Increase flow rate
B. Provide access for maintenance and clearing blockages
C. Vent sewer gases
D. Control slope
Correct Answer: B
Rationale:
Cleanouts allow inspection and mechanical cleaning of sewer lines.
9. Which factor MOST affects pipe slope requirements?
A. Pipe color
B. Pipe diameter and material
C. Contractor preference
D. Depth of trench
Correct Answer: B
Rationale:
Slope ensures proper flow velocity and prevents solids from settling.
10. What is the primary hazard of improper backfilling?
QUESTIONS AND ANSWERS | 2025/2026 | Latest
EDITION| Instant download !!
1. Which activity falls under the scope of a Florida Underground Utility Contractor
license?
A. Structural concrete framing
B. Installation of potable water, sewer, and storm drainage systems
C. Electrical conduit above grade only
D. Roofing and waterproofing
Correct Answer: B
Rationale:
CUC contractors are authorized to install, repair, and modify underground water, sewer,
stormwater, and related utility systems.
2. Before excavation begins in Florida, which action is legally required?
A. Notify the building department only
B. Call Sunshine 811 to locate underground utilities
C. Obtain verbal permission from neighbors
D. Submit final inspection paperwork
Correct Answer: B
,Rationale:
Florida law requires contractors to contact Sunshine 811 to prevent damage to existing
underground utilities.
3. What is the primary purpose of trench shoring?
A. Speed up excavation
B. Prevent soil collapse and protect workers
C. Improve pipe alignment
D. Reduce inspection frequency
Correct Answer: B
Rationale:
Shoring protects workers from cave-ins, a leading cause of excavation fatalities.
4. Which soil condition presents the greatest trench collapse risk?
A. Solid rock
B. Clay
C. Saturated or loose soil
D. Compacted gravel
Correct Answer: C
Rationale:
Loose or water-saturated soil lacks cohesion and is highly unstable.
5. What minimum slope ratio is commonly required for trenching in unstable soil?
,A. 1:1
B. 1.5:1
C. 2:1
D. Vertical walls allowed
Correct Answer: B
Rationale:
OSHA trenching standards require gentler slopes in unstable soil to prevent collapse.
6. What is the function of bedding material under underground pipes?
A. Reduce material cost
B. Support, level, and protect the pipe
C. Improve water pressure
D. Prevent corrosion
Correct Answer: B
Rationale:
Proper bedding ensures uniform support and prevents stress fractures.
7. Which pipe material is commonly used for sanitary sewer systems in Florida?
A. Copper
B. PVC
C. Aluminum
D. Galvanized steel
Correct Answer: B
, Rationale:
PVC is corrosion-resistant, lightweight, and approved for sewer applications.
8. What is the purpose of a cleanout in a sewer system?
A. Increase flow rate
B. Provide access for maintenance and clearing blockages
C. Vent sewer gases
D. Control slope
Correct Answer: B
Rationale:
Cleanouts allow inspection and mechanical cleaning of sewer lines.
9. Which factor MOST affects pipe slope requirements?
A. Pipe color
B. Pipe diameter and material
C. Contractor preference
D. Depth of trench
Correct Answer: B
Rationale:
Slope ensures proper flow velocity and prevents solids from settling.
10. What is the primary hazard of improper backfilling?
