FLORIDA UNDERGROUND UTILITY CONTRACTOR
EXAM AND PRACTICE EXAM NEWEST 2026/ 2027
TEST BANK / UNDERGROUND UTILITY
CONTRACTOR CERTIFICATION EXAM PREP WITH
COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (MOST RECENT!!)
A sanitary sewer plan calls for a 2.0% grade. The upstream invert is
102.40 ft and the downstream manhole is 150 ft away horizontally. What
downstream invert should be established?
A. 99.40 ft
B. 102.10 ft
C. 105.40 ft
D. 101.65 ft - Correct Answer - A
A 2.0% grade over 150 ft produces 3.00 ft of fall. Therefore, 102.40 −
3.00 = 99.40 ft.
A crew is preparing to excavate a new water-main alignment in Florida.
The utility locate ticket has been submitted, but one member operator
has not yet provided a positive response. What is the most appropriate
action?
A. Begin excavation outside the pavement
B. Excavate only with the backhoe
C. Wait for the required response
D. Assume the facility is not present - Correct Answer - C
pg. 1
,Excavation should not proceed based merely on assumptions about an
unresponsive facility. Florida's notification procedures require
appropriate responses before excavation proceeds.
A proposed trench will be 7 ft deep and is located in soil with
unfavorable geotechnical characteristics. Which factor should most
directly influence selection of the trench safety system?
A. Pipe manufacturer's color
B. Available geotechnical information
C. Contractor's preferred excavator
D. Daily production target - Correct Answer - B
Florida requires applicable excavation safety standards and requires
available geotechnical information to be considered when designing the
trench safety system.
A water-main installation requires a 12-in. pipe to be placed with 36 in.
of cover. Existing grade at the proposed station is elevation 87.60 ft.
Ignoring pipe-wall thickness for this calculation, what elevation
corresponds to the top of the pipe?
A. 86.60 ft
B. 84.60 ft
C. 87.30 ft
D. 90.60 ft - Correct Answer - B
Three feet of cover means the top of pipe is 87.60 − 3.00 = 84.60 ft.
Rationale: Existing grade 87.60 ft minus 3.00 ft of cover equals 84.60 ft.
pg. 2
,During directional drilling, the bore head approaches a marked gas line
whose actual depth is uncertain. What is the best field response?
A. Increase drilling pressure
B. Continue using the design depth
C. Expose the conflict area safely
D. Shift the gas line temporarily - Correct Answer: C
When a critical existing utility's exact position is uncertain, physical
exposure can establish its actual location before proceeding. Florida's
underground-facility framework recognizes physically exposing
facilities as a locating method.
A storm sewer requires a 1.25% slope over 240 ft. The upstream invert is
76.80 ft. What should the downstream invert be?
A. 73.80 ft
B. 74.20 ft
C. 75.55 ft
D. 79.80 ft - Correct Answer - A
Fall = 240 × 0.0125 = 3.00 ft. Downstream invert = 76.80 − 3.00 = 73.80
ft.
The required downstream elevation is 73.80 ft.
A contractor discovers that groundwater rises substantially in a test hole
during the wet season but was nearly absent during the original site
investigation. What does this most directly demonstrate?
A. Pipe corrosion
B. Seasonal groundwater variation
C. Improper pipe bedding
pg. 3
, D. Excessive compaction - Correct Answer - B
Groundwater levels can vary seasonally, which is specifically identified
in the Florida trade-content outline as a consideration when determining
water levels.
A crew is installing a sewer lateral to a manhole. The plan specifies an
invert of 61.25 ft, but field measurements indicate the proposed
connection would produce a reverse slope. What should occur first?
A. Force the pipe into grade
B. Increase bedding thickness randomly
C. Verify the control elevations
D. Raise the downstream manhole - Correct Answer - C
A reverse slope may result from incorrect control points, benchmark
errors, or field-layout problems. Elevations should be verified before
changing the design.
A trench is 6 ft deep. Which Florida contract requirement becomes
particularly relevant because the trench exceeds 5 ft?
A. Separate trench-safety cost item
B. Mandatory concrete bedding
C. Mandatory steel pipe
D. Automatic groundwater treatment - Correct Answer - A
Florida law requires contracts involving trench excavation exceeding 5 ft
to reference applicable trench-safety standards, provide written
assurance of compliance, and separately identify the compliance cost.
pg. 4
EXAM AND PRACTICE EXAM NEWEST 2026/ 2027
TEST BANK / UNDERGROUND UTILITY
CONTRACTOR CERTIFICATION EXAM PREP WITH
COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (MOST RECENT!!)
A sanitary sewer plan calls for a 2.0% grade. The upstream invert is
102.40 ft and the downstream manhole is 150 ft away horizontally. What
downstream invert should be established?
A. 99.40 ft
B. 102.10 ft
C. 105.40 ft
D. 101.65 ft - Correct Answer - A
A 2.0% grade over 150 ft produces 3.00 ft of fall. Therefore, 102.40 −
3.00 = 99.40 ft.
A crew is preparing to excavate a new water-main alignment in Florida.
The utility locate ticket has been submitted, but one member operator
has not yet provided a positive response. What is the most appropriate
action?
A. Begin excavation outside the pavement
B. Excavate only with the backhoe
C. Wait for the required response
D. Assume the facility is not present - Correct Answer - C
pg. 1
,Excavation should not proceed based merely on assumptions about an
unresponsive facility. Florida's notification procedures require
appropriate responses before excavation proceeds.
A proposed trench will be 7 ft deep and is located in soil with
unfavorable geotechnical characteristics. Which factor should most
directly influence selection of the trench safety system?
A. Pipe manufacturer's color
B. Available geotechnical information
C. Contractor's preferred excavator
D. Daily production target - Correct Answer - B
Florida requires applicable excavation safety standards and requires
available geotechnical information to be considered when designing the
trench safety system.
A water-main installation requires a 12-in. pipe to be placed with 36 in.
of cover. Existing grade at the proposed station is elevation 87.60 ft.
Ignoring pipe-wall thickness for this calculation, what elevation
corresponds to the top of the pipe?
A. 86.60 ft
B. 84.60 ft
C. 87.30 ft
D. 90.60 ft - Correct Answer - B
Three feet of cover means the top of pipe is 87.60 − 3.00 = 84.60 ft.
Rationale: Existing grade 87.60 ft minus 3.00 ft of cover equals 84.60 ft.
pg. 2
,During directional drilling, the bore head approaches a marked gas line
whose actual depth is uncertain. What is the best field response?
A. Increase drilling pressure
B. Continue using the design depth
C. Expose the conflict area safely
D. Shift the gas line temporarily - Correct Answer: C
When a critical existing utility's exact position is uncertain, physical
exposure can establish its actual location before proceeding. Florida's
underground-facility framework recognizes physically exposing
facilities as a locating method.
A storm sewer requires a 1.25% slope over 240 ft. The upstream invert is
76.80 ft. What should the downstream invert be?
A. 73.80 ft
B. 74.20 ft
C. 75.55 ft
D. 79.80 ft - Correct Answer - A
Fall = 240 × 0.0125 = 3.00 ft. Downstream invert = 76.80 − 3.00 = 73.80
ft.
The required downstream elevation is 73.80 ft.
A contractor discovers that groundwater rises substantially in a test hole
during the wet season but was nearly absent during the original site
investigation. What does this most directly demonstrate?
A. Pipe corrosion
B. Seasonal groundwater variation
C. Improper pipe bedding
pg. 3
, D. Excessive compaction - Correct Answer - B
Groundwater levels can vary seasonally, which is specifically identified
in the Florida trade-content outline as a consideration when determining
water levels.
A crew is installing a sewer lateral to a manhole. The plan specifies an
invert of 61.25 ft, but field measurements indicate the proposed
connection would produce a reverse slope. What should occur first?
A. Force the pipe into grade
B. Increase bedding thickness randomly
C. Verify the control elevations
D. Raise the downstream manhole - Correct Answer - C
A reverse slope may result from incorrect control points, benchmark
errors, or field-layout problems. Elevations should be verified before
changing the design.
A trench is 6 ft deep. Which Florida contract requirement becomes
particularly relevant because the trench exceeds 5 ft?
A. Separate trench-safety cost item
B. Mandatory concrete bedding
C. Mandatory steel pipe
D. Automatic groundwater treatment - Correct Answer - A
Florida law requires contracts involving trench excavation exceeding 5 ft
to reference applicable trench-safety standards, provide written
assurance of compliance, and separately identify the compliance cost.
pg. 4
