Florida Underground Utility Contractor
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Questions And Correct Detailed
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QUESTION 1
A contractor begins excavation before calling 811 for utility location services. What
is the primary risk?
A. Increased labor costs
B. Striking underground utilities
C. Faster project completion
D. Reduced permitting time
Answer: B – The primary risk is striking underground utilities, which can cause
service outages, injury, or fatalities.
QUESTION 2
Which soil type presents the greatest risk of collapse in trenching operations?
A. Type A
B. Type B
C. Type C
D. Bedrock
,Answer: C – Type C soil is the least stable and most prone to collapse.
QUESTION 3
What is the minimum requirement for trench protection when depth exceeds 5
feet?
A. Warning signs only
B. Protective system unless stable rock
C. Supervisor approval only
D. No protection required
Answer: B – OSHA requires a protective system such as shoring, sloping, or
shielding unless stable rock is present.
QUESTION 4
Which system uses hydraulic or mechanical supports to prevent trench collapse?
A. Benching
B. Sloping
C. Shoring
D. Shielding
Answer: C – Shoring uses supports to hold trench walls in place.
QUESTION 5
A “call before you dig” service in Florida is known as:
A. OSHA 300
B. Sunshine One Call
C. 811 Locate Service
D. FDOT Alert System
, Answer: C – The nationwide 811 utility location service is used in Florida.
QUESTION 6
What is the main purpose of trench shielding?
A. Stabilize soil
B. Prevent water accumulation
C. Protect workers inside trench
D. Measure soil density
Answer: C – A trench shield protects workers from cave-ins.
QUESTION 7
Which hazard is MOST associated with confined trench spaces?
A. Heat exhaustion only
B. Oxygen deficiency and toxic gases
C. Excess lighting
D. Noise pollution
Answer: B – Confined spaces may contain oxygen-deficient or toxic atmospheres.
QUESTION 8
Before excavation begins, contractors must identify:
A. Project budget
B. Underground utilities
C. Weather forecast
D. Worker schedules
Answer: B – Locating underground utilities is legally required before digging.
Exam Newest 2026-2027 Updated
Questions From Actual Exams Complete
Questions And Correct Detailed
Answers (Expert Verified Exam)
|Already Graded A+||Brand New!!
QUESTION 1
A contractor begins excavation before calling 811 for utility location services. What
is the primary risk?
A. Increased labor costs
B. Striking underground utilities
C. Faster project completion
D. Reduced permitting time
Answer: B – The primary risk is striking underground utilities, which can cause
service outages, injury, or fatalities.
QUESTION 2
Which soil type presents the greatest risk of collapse in trenching operations?
A. Type A
B. Type B
C. Type C
D. Bedrock
,Answer: C – Type C soil is the least stable and most prone to collapse.
QUESTION 3
What is the minimum requirement for trench protection when depth exceeds 5
feet?
A. Warning signs only
B. Protective system unless stable rock
C. Supervisor approval only
D. No protection required
Answer: B – OSHA requires a protective system such as shoring, sloping, or
shielding unless stable rock is present.
QUESTION 4
Which system uses hydraulic or mechanical supports to prevent trench collapse?
A. Benching
B. Sloping
C. Shoring
D. Shielding
Answer: C – Shoring uses supports to hold trench walls in place.
QUESTION 5
A “call before you dig” service in Florida is known as:
A. OSHA 300
B. Sunshine One Call
C. 811 Locate Service
D. FDOT Alert System
, Answer: C – The nationwide 811 utility location service is used in Florida.
QUESTION 6
What is the main purpose of trench shielding?
A. Stabilize soil
B. Prevent water accumulation
C. Protect workers inside trench
D. Measure soil density
Answer: C – A trench shield protects workers from cave-ins.
QUESTION 7
Which hazard is MOST associated with confined trench spaces?
A. Heat exhaustion only
B. Oxygen deficiency and toxic gases
C. Excess lighting
D. Noise pollution
Answer: B – Confined spaces may contain oxygen-deficient or toxic atmospheres.
QUESTION 8
Before excavation begins, contractors must identify:
A. Project budget
B. Underground utilities
C. Weather forecast
D. Worker schedules
Answer: B – Locating underground utilities is legally required before digging.
