FLORIDA UNDERGROUND UTILITY
CONTRACTOR EXAM 2026 QUESTIONS
AND CORRECT ANSWERS LATEST
UPDATE
1. According to OSHA 1926 Subpart P, what is the maximum allowable slope for an
excavation in Type B soil?
A. 1:1
B. 3/4:1
C. 1.5:1
D. 1/2:1
Answer: A
Conceptual Explanation: OSHA Table B-1 states that for excavations less than 20 feet
deep, Type B soil requires a 1:1 slope (45 degrees).
2. Under Florida’s Sunshine 811 law, what is the ‘tolerance zone’ width on either side of the
marks?
A. 12 inches
B. 36 inches
C. 24 inches
,D. 48 inches
Answer: C
Conceptual Explanation: Florida Statute 556 defines the tolerance zone as 24 inches from
the outer edge of the buried facility on all sides.
3. What is the minimum horizontal separation required between a proposed water main and
an existing sanitary sewer?
A. 10 feet
B. 6 feet
C. 3 feet
D. 5 feet
Answer: A
Conceptual Explanation: FDEP and typical Florida utility standards require 10 feet of
horizontal separation for protection of the water supply.
4. In a trench deeper than 4 feet, what is the maximum lateral travel distance to a ladder or
means of egress?
A. 50 feet
B. 15 feet
C. 25 feet
D. 10 feet
, Answer: C
Conceptual Explanation: OSHA 1926.651(c)(2) requires a means of egress in trenches 4
feet or deeper so as to require no more than 25 feet of lateral travel.
5. Which PVC pipe has the thickest wall relative to its diameter?
A. SDR 11
B. SDR 21
C. SDR 26
D. SDR 17
Answer: A
Conceptual Explanation: The Standard Dimension Ratio (SDR) is the ratio of outside
diameter to wall thickness; a lower number indicates a thicker wall.
6. What is the standard test pressure for a hydrostatic leakage test on a water main according
to AWWA C600?
A. 1.5 times the working pressure at the highest point
B. 1.5 times the working pressure at the lowest point
C. 1.25 times the working pressure at the lowest point
D. 100 psi regardless of depth
Answer: B
CONTRACTOR EXAM 2026 QUESTIONS
AND CORRECT ANSWERS LATEST
UPDATE
1. According to OSHA 1926 Subpart P, what is the maximum allowable slope for an
excavation in Type B soil?
A. 1:1
B. 3/4:1
C. 1.5:1
D. 1/2:1
Answer: A
Conceptual Explanation: OSHA Table B-1 states that for excavations less than 20 feet
deep, Type B soil requires a 1:1 slope (45 degrees).
2. Under Florida’s Sunshine 811 law, what is the ‘tolerance zone’ width on either side of the
marks?
A. 12 inches
B. 36 inches
C. 24 inches
,D. 48 inches
Answer: C
Conceptual Explanation: Florida Statute 556 defines the tolerance zone as 24 inches from
the outer edge of the buried facility on all sides.
3. What is the minimum horizontal separation required between a proposed water main and
an existing sanitary sewer?
A. 10 feet
B. 6 feet
C. 3 feet
D. 5 feet
Answer: A
Conceptual Explanation: FDEP and typical Florida utility standards require 10 feet of
horizontal separation for protection of the water supply.
4. In a trench deeper than 4 feet, what is the maximum lateral travel distance to a ladder or
means of egress?
A. 50 feet
B. 15 feet
C. 25 feet
D. 10 feet
, Answer: C
Conceptual Explanation: OSHA 1926.651(c)(2) requires a means of egress in trenches 4
feet or deeper so as to require no more than 25 feet of lateral travel.
5. Which PVC pipe has the thickest wall relative to its diameter?
A. SDR 11
B. SDR 21
C. SDR 26
D. SDR 17
Answer: A
Conceptual Explanation: The Standard Dimension Ratio (SDR) is the ratio of outside
diameter to wall thickness; a lower number indicates a thicker wall.
6. What is the standard test pressure for a hydrostatic leakage test on a water main according
to AWWA C600?
A. 1.5 times the working pressure at the highest point
B. 1.5 times the working pressure at the lowest point
C. 1.25 times the working pressure at the lowest point
D. 100 psi regardless of depth
Answer: B
