PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free AL Drainage Culvert Practice Questions

Prepare for the Alabama Drainage and Culvert Contractor Examination exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Alabama General Contractors Specialty Classifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Alabama Building Contractor Under Four Stories Examination

Practice Questions

Alabama Carpentry and Framing Contractor Examination

Practice Questions

Alabama Commercial Swimming Pool Contractor Examination

Practice Questions

Alabama Concrete Contractor Examination

Practice Questions

Alabama Concrete Pavement Contractor Examination

Practice Questions

Alabama Conveying Contractor Examination

Practice Questions
2026 Statistics

Key Facts: AL Drainage Culvert Exam

70%

Passing Score

PSI AL GC Bulletin

30 Q

Official Exam Questions

PSI AL GC Bulletin

75 minutes

Time Allowed

PSI AL GC Bulletin

$96

PSI Exam Fee

PSI AL GC Bulletin

Open book

Exam Format

PSI AL GC Bulletin

Alabama AL Drainage Culvert trade exam via PSI: 30 questions, 70% pass, 75 minutes, fee $96. Open-book specialty classification under the Alabama Licensing Board for General Contractors (bulletin 1/23/26).

Sample AL Drainage Culvert Practice Questions

Try these sample questions to test your AL Drainage Culvert exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1On a plan, a grade of 2% means which change in elevation along a 100-foot horizontal run?
A.0.2 feet of rise or fall
B.2 feet of rise or fall
C.20 feet of rise or fall
D.0.02 feet of rise or fall
Explanation: Percent grade is rise over run times 100. A 2% grade changes elevation by 2 feet in 100 feet of horizontal distance (2/100 = 0.02 = 2%). Drainage and road grades are commonly expressed this way on plans and stakes.
2What does a survey station designation of 12+50 represent?
A.12 feet plus 50 inches along the centerline
B.1,250 feet along the stationing baseline from the origin
C.12.50 percent grade
D.Station 12 at 50 feet of offset
Explanation: Civil stationing uses 100-foot stations. Station 12+00 is 1,200 feet from the origin, so 12+50 is 1,250 feet along the baseline. Station equations appear on plans for alignment control of roads, ditches, and drainage lines.
3A benchmark on a drainage project is primarily used to:
A.Mark the edge of right-of-way only
B.Provide a known elevation reference for layout and grade control
C.Identify the nearest utility owner
D.Show the planned finished surface color
Explanation: A benchmark is a point of known elevation. Crews transfer grades from benchmarks to hubs, blue tops, and structure invert stakes so cut, fill, and pipe grades stay consistent with the plans.
4Blue-top stakes set during grading typically indicate:
A.Finished subgrade or finished grade elevation at the stake location
B.Only the location of underground electric lines
C.The maximum excavation depth allowed by OSHA
D.Temporary survey marks for utilities only
Explanation: Blue tops are grade stakes whose top (often painted blue) is set to the design elevation of subgrade or finish grade. Operators cut or fill to match the stake tops for accurate drainage slopes and pavement bases.
5Cut earthwork means material that is:
A.Imported from a commercial quarry only
B.Removed by excavation below existing ground to reach design grade
C.Always unsuitable and must be wasted off-site
D.Placed only as topsoil for landscaping
Explanation: Cut is excavation of existing ground down to the design surface. Suitable cut may become embankment fill elsewhere on the project; unsuitable cut is wasted. Balancing cut and fill is a core earthwork skill for drainage sites.
6Fill embankment for a drainage swale should generally be placed and compacted in:
A.One single deep lift equal to the full fill height
B.Controlled lifts of specified thickness with compaction of each lift
C.Loose piles left uncompacted until final grading
D.Frozen blocks stacked without moisture control
Explanation: Embankment is built in thin lifts so compaction energy reaches the full thickness of each layer. Specs set maximum loose lift thickness and density/moisture targets so the finished grade does not settle and reverse drainage slopes.
7A standard Proctor test is used primarily to determine:
A.Pipe hydraulic capacity under full flow
B.Maximum dry density and optimum moisture content of a soil
C.Concrete compressive strength at 28 days
D.The APWA color for gas lines
Explanation: The Proctor (or modified Proctor) laboratory test finds the soil’s maximum dry density and optimum moisture. Field density tests then compare in-place density to that laboratory maximum so embankments meet percent-compaction requirements.
8Existing ground elevation is 102.40 and design subgrade is 100.15 at the same point. What is the cut?
A.2.25 feet of cut
B.0.225 feet of cut
C.2.25 feet of fill
D.202.55 feet of cut
Explanation: Cut equals existing elevation minus design elevation when existing is higher: 102.40 − 100.15 = 2.25 feet of cut. Contractors use this comparison on cross-sections and grade sheets for earthwork quantities.
9Cross-sections on drainage plans are used mainly to:
A.Show only the utility color codes
B.Display the shape of the ground and design surfaces at a station for cut/fill and grading
C.Replace the need for a horizontal alignment
D.List concrete mix designs
Explanation: A cross-section is a vertical slice through the work at a station. It shows existing ground, design ditch or roadway templates, slopes, and often utility clearances so crews can set grades and estimate earthwork.
10A ditch invert drops from elevation 84.00 at station 10+00 to 82.50 at station 11+00. What is the average grade between those stations?
A.0.15%
B.1.5%
C.15%
D.0.015%
Explanation: Horizontal distance from 10+00 to 11+00 is 100 feet. Elevation change is 84.00 − 82.50 = 1.50 feet. Percent grade = (1.50/100) × 100 = 1.5% falling. Steady positive drainage grade keeps water moving toward outfalls.

About the AL Drainage Culvert Exam

The Alabama Drainage and Culvert Contractor Examination is a classification trade examination administered by PSI for the Alabama Licensing Board for General Contractors. The official open-book exam has 30 questions, a 70% (21 of 30 correct) passing standard, and 75 minutes allowed. PSI examination fee is $96 per attempt (bulletin updated 1/23/26). This English-language MCQ bank is a study aid for the trade knowledge on the official content outline; it is not an official PSI form, does not replace the required Business & Law exam for primes, and is not a substitute for board-approved experience or the official open-book examination.

Questions

30 scored questions

Time Limit

75 minutes

Passing Score

70%

Exam Fee

$96 (PSI Services LLC (for Alabama Licensing Board for General Contractors))

AL Drainage Culvert Exam Content Outline

27%

Earthwork/Surveying

Survey and earthwork

17%

Concrete

Drainage concrete work

17%

Curbs and Gutters

Curb and gutter construction

10%

Culverts

Culvert installation

17%

One Call

Alabama 1Call requirements

13%

Heavy Equipment/Safety

Equipment and safety

How to Pass the AL Drainage Culvert Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 30 questions
  • Time limit: 75 minutes
  • Exam fee: $96

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

AL Drainage Culvert Study Tips from Top Performers

1Study only the approved references listed for your classification in the current PSI Alabama General Contractors bulletin
2Practice open-book navigation with permanent tabs and indexes before test day
3Drill OSHA 29 CFR 1926 topics that appear across nearly every trade outline
4Work quantity takeoff and plan-reading problems under timed conditions
5Confirm Board eligibility and classification scope on genconbd.alabama.gov before scheduling with PSI

Frequently Asked Questions

How many questions are on the AL Drainage Culvert exam?

The official PSI trade examination has 30 scored questions (plus possible experimental items). Passing is 70% (21 of 30 correct) within 75 minutes.

How much does the AL Drainage Culvert exam cost?

PSI lists $96 per examination registration for this Alabama general contractor classification exam (Candidate Information Bulletin updated 1/23/26). License application fees to the Board are separate.

Is the Alabama specialty contractor exam open book?

Yes. PSI administers these classification exams as open book. Only the bulletin-listed approved references are allowed; temporary tabs like Post-it notes are prohibited.

Do I still need the Business and Law exam?

Prime contractor applicants must also pass the Alabama Business & Law examination (50 questions, 70%, 120 minutes). Reciprocity may waive a trade exam in some cases but does not waive Business & Law.