ALABAMA (AL) SEWER PROJECTS CONTRACTOR PRACTICE EXAM LATEST QUESTIONS
ABD CORRECT ANSWERS GRADE A
Total Questions: 100
Question Types: Multiple Choice
Format: Question + Answer Key + Explanation
References: ADEM Administrative Code, Alabama State Plumbing Code (2015 IPC with
Alabama Amendments), 10 State Standards, ADPH regulations
Q1. According to Alabama law, who must be licensed as a sewer projects contractor?
A) Anyone installing septic systems
B) Contractors performing sewer work over $10,000
C) Anyone installing or repairing sewer lines
D) Only contractors working on municipal projects
Answer: C
Explanation: Alabama requires licensure for any contractor installing, repairing, or
maintaining sewer systems.
Q2. The Alabama Department of Environmental Management (ADEM) regulates sewer
projects primarily under:
A) ADEM Administrative Code Division 335-6
B) Alabama Building Code
C) EPA Clean Water Act
D) All of the above
Answer: A
Explanation: ADEM Division 335-6 specifically covers wastewater systems and sewer
projects.
,Q3. What is the minimum required separation distance between a septic tank and a water
well in Alabama?
A) 50 feet
B) 75 feet
C) 100 feet
D) 150 feet
Answer: C
Explanation: ADEM Admin. Code 335-6-6 requires 100-foot minimum separation between
septic tanks and water wells.
Q4. According to Alabama regulations, what is required before beginning any sewer
construction project?
A) ADEM permit
B) County health department approval
C) Soil evaluation
D) All of the above
Answer: D
Explanation: Most sewer projects in Alabama require ADEM permits, local approvals, and
soil evaluations.
Q5. The minimum required slope for an 8-inch sewer main is:
A) 0.10% (0.0010 ft/ft)
B) 0.40% (0.0040 ft/ft)
C) 0.60% (0.0060 ft/ft)
D) 1.00% (0.0100 ft/ft)
Answer: B
,Explanation: 10 State Standards and Alabama Plumbing Code typically require 0.40%
minimum slope for 8-inch pipes.
Q6. What type of permit is required for sewer projects discharging to waters of the state?
A) NPDES Permit
B) Land Disturbance Permit
C) Building Permit
D) All of the above
Answer: A
Explanation: ADEM issues NPDES permits for discharges to state waters under Clean
Water Act authority.
Q7. The minimum required cover over sewer pipes in roadway areas is:
A) 12 inches
B) 24 inches
C) 36 inches
D) 48 inches
Answer: C
Explanation: Alabama standards typically require 36-inch minimum cover under roadways
for sewer pipes.
Q8. According to Alabama regulations, what is the maximum allowable infiltration rate for
new sewer lines?
A) 100 gallons/inch-diameter/mile/day
B) 200 gallons/inch-diameter/mile/day
C) 500 gallons/inch-diameter/mile/day
D) No limit specified
, Answer: A
Explanation: ADEM standards typically limit infiltration to 100 gallons/inch-
diameter/mile/day.
Q9. What is the minimum required size for a residential sewer service line?
A) 3 inches
B) 4 inches
C) 6 inches
D) 8 inches
Answer: B
Explanation: Alabama Plumbing Code typically requires 4-inch minimum for residential
sewer service.
Q10. The Alabama Onsite Wastewater Board certifies:
A) Sewer contractors
B) Soil classifiers
C) System installers
D) All of the above
Answer: D
Explanation: The Alabama Onsite Wastewater Board certifies all these professionals.
Q11. According to ADEM regulations, what is required for sewer projects in floodplains?
A) Floodproofing measures
B) Elevated structures
C) Both A and B
D) No special requirements
Answer: C
ABD CORRECT ANSWERS GRADE A
Total Questions: 100
Question Types: Multiple Choice
Format: Question + Answer Key + Explanation
References: ADEM Administrative Code, Alabama State Plumbing Code (2015 IPC with
Alabama Amendments), 10 State Standards, ADPH regulations
Q1. According to Alabama law, who must be licensed as a sewer projects contractor?
A) Anyone installing septic systems
B) Contractors performing sewer work over $10,000
C) Anyone installing or repairing sewer lines
D) Only contractors working on municipal projects
Answer: C
Explanation: Alabama requires licensure for any contractor installing, repairing, or
maintaining sewer systems.
Q2. The Alabama Department of Environmental Management (ADEM) regulates sewer
projects primarily under:
A) ADEM Administrative Code Division 335-6
B) Alabama Building Code
C) EPA Clean Water Act
D) All of the above
Answer: A
Explanation: ADEM Division 335-6 specifically covers wastewater systems and sewer
projects.
,Q3. What is the minimum required separation distance between a septic tank and a water
well in Alabama?
A) 50 feet
B) 75 feet
C) 100 feet
D) 150 feet
Answer: C
Explanation: ADEM Admin. Code 335-6-6 requires 100-foot minimum separation between
septic tanks and water wells.
Q4. According to Alabama regulations, what is required before beginning any sewer
construction project?
A) ADEM permit
B) County health department approval
C) Soil evaluation
D) All of the above
Answer: D
Explanation: Most sewer projects in Alabama require ADEM permits, local approvals, and
soil evaluations.
Q5. The minimum required slope for an 8-inch sewer main is:
A) 0.10% (0.0010 ft/ft)
B) 0.40% (0.0040 ft/ft)
C) 0.60% (0.0060 ft/ft)
D) 1.00% (0.0100 ft/ft)
Answer: B
,Explanation: 10 State Standards and Alabama Plumbing Code typically require 0.40%
minimum slope for 8-inch pipes.
Q6. What type of permit is required for sewer projects discharging to waters of the state?
A) NPDES Permit
B) Land Disturbance Permit
C) Building Permit
D) All of the above
Answer: A
Explanation: ADEM issues NPDES permits for discharges to state waters under Clean
Water Act authority.
Q7. The minimum required cover over sewer pipes in roadway areas is:
A) 12 inches
B) 24 inches
C) 36 inches
D) 48 inches
Answer: C
Explanation: Alabama standards typically require 36-inch minimum cover under roadways
for sewer pipes.
Q8. According to Alabama regulations, what is the maximum allowable infiltration rate for
new sewer lines?
A) 100 gallons/inch-diameter/mile/day
B) 200 gallons/inch-diameter/mile/day
C) 500 gallons/inch-diameter/mile/day
D) No limit specified
, Answer: A
Explanation: ADEM standards typically limit infiltration to 100 gallons/inch-
diameter/mile/day.
Q9. What is the minimum required size for a residential sewer service line?
A) 3 inches
B) 4 inches
C) 6 inches
D) 8 inches
Answer: B
Explanation: Alabama Plumbing Code typically requires 4-inch minimum for residential
sewer service.
Q10. The Alabama Onsite Wastewater Board certifies:
A) Sewer contractors
B) Soil classifiers
C) System installers
D) All of the above
Answer: D
Explanation: The Alabama Onsite Wastewater Board certifies all these professionals.
Q11. According to ADEM regulations, what is required for sewer projects in floodplains?
A) Floodproofing measures
B) Elevated structures
C) Both A and B
D) No special requirements
Answer: C
