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100+ Free AL Municipal Utility Practice Questions

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2026 Statistics

Key Facts: AL Municipal Utility Exam

70%

Passing Score

PSI AL GC Bulletin

90 Q

Official Exam Questions

PSI AL GC Bulletin

3 hr 40 min

Time Allowed

PSI AL GC Bulletin

$106

PSI Exam Fee

PSI AL GC Bulletin

Open book

Exam Format

PSI AL GC Bulletin

Alabama AL Municipal Utility trade exam via PSI: 90 questions, 70% pass, 3 hr 40 min, fee $106. Open-book specialty classification under the Alabama Licensing Board for General Contractors (bulletin 1/23/26).

Sample AL Municipal Utility Practice Questions

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

1Under OSHA 29 CFR 1926 Subpart P, when is a protective system generally required for employees working in a trench?
A.When the trench is 3 feet or deeper
B.When the trench is 5 feet or deeper, unless made entirely in stable rock
C.Only when the trench is 10 feet or deeper
D.Only when groundwater is present
Explanation: OSHA 1926.652 generally requires a protective system (sloping, benching, shoring, or shielding) for excavations 5 feet or deeper in which employees work, unless the excavation is made entirely in stable rock. Shallower trenches may still need protection if a competent person finds a cave-in hazard.
2Per OSHA, what is the maximum lateral travel distance to a means of egress in a trench that is 4 feet or more deep?
A.10 feet
B.15 feet
C.25 feet
D.50 feet
Explanation: OSHA 1926.651(c)(2) requires a stairway, ladder, ramp, or other safe means of egress in trench excavations 4 feet or deeper so that employees need no more than 25 feet of lateral travel to exit.
3How far must excavated spoil piles and other materials be kept from the edge of a trench under OSHA rules?
A.At least 1 foot
B.At least 2 feet
C.At least 4 feet
D.At least 6 feet
Explanation: OSHA requires excavated materials (spoils) and equipment to be kept at least 2 feet from the edge of excavations, or retained so they cannot fall or roll into the excavation and surcharge the wall.
4What is the maximum allowable slope for Type C soil in excavations less than 20 feet deep (simple slope) under OSHA Appendix B?
A.Vertical (90°)
B.3/4 horizontal to 1 vertical (53°)
C.1 horizontal to 1 vertical (45°)
D.1½ horizontal to 1 vertical (34°)
Explanation: OSHA classifies Type C as the least stable common soil type for sloping. The maximum allowable simple slope for Type C soil less than 20 feet deep is 1½H:1V (about 34° from horizontal).
5A trench is 8 feet deep in Type C soil and will be simply sloped on both sides. How wide must each horizontal run be from the trench bottom edge to the top of the slope?
A.4 feet
B.6 feet
C.8 feet
D.12 feet
Explanation: Type C simple slope is 1½H:1V. For an 8-foot vertical depth, horizontal distance = 1.5 × 8 = 12 feet on each side. That is the minimum run required for the allowable Type C slope.
6Who is authorized under OSHA excavation standards to classify soil and select protective systems on a jobsite?
A.Any crew member with one year of experience
B.A competent person as defined by OSHA
C.Only a professional engineer for all depths
D.The equipment operator alone
Explanation: OSHA requires a competent person—someone capable of identifying existing and predictable hazards and authorized to take prompt corrective measures—to classify soils, inspect excavations, and determine protective systems. A PE is required for some designs (e.g., deeper than 20 feet or tabulated data exceptions), but daily field classification is a competent-person duty.
7Under Alabama’s Underground Damage Prevention Act, how much advance notice must an excavator generally provide to Alabama 811 before starting excavation?
A.Same-day notice is always sufficient
B.At least 2 but not more than 10 working days, not counting the day of notification
C.Exactly 30 calendar days
D.One calendar week including weekends
Explanation: Alabama law requires excavators to notify the one-call system at least two but not more than ten working days before excavation begins, excluding the day of notification. Waiting the full legal period allows operators to mark facilities before digging.
8Why is tracer wire or an electronic marker installed with a new polyethylene gas main?
A.To carry cathodic protection current to the plastic pipe
B.To make the nonmetallic pipe locatable by standard electromagnetic locating equipment
C.To ground the main against lightning strikes
D.To reinforce the pipe against internal pressure
Explanation: Electromagnetic locators work by energizing a conductor and tracing its field. Polyethylene pipe is nonconductive, so without a continuous tracer wire, marker tape, or electronic markers, a locator cannot find it and the next excavator dig near it becomes guesswork. That is why continuity of the tracer wire, accessible test points, and proven locatability are inspected before the main is accepted.
9Under 49 CFR 192.625, combustible gas in a distribution line must be odorized so that it is readily detectable by a person with a normal sense of smell at what concentration in air?
A.At the upper explosive limit
B.At one-half of the lower explosive limit
C.At one-fifth of the lower explosive limit
D.Only after the gas has reached an explosive mixture
Explanation: 49 CFR 192.625(a) requires a combustible gas in a distribution line to contain a natural odorant or be odorized so that at a concentration in air of one-fifth of the lower explosive limit, the gas is readily detectable by a person with a normal sense of smell. Odorizing well below the explosive range is what gives occupants and crews warning before a leak reaches an ignitable mixture, which is why odorant level is monitored by the operator.
10Federal rules require combustible gas in a distribution line to be odorized so a person with a normal sense of smell can readily detect it at what concentration in air?
A.One-fifth of the lower explosive limit
B.One-half of the lower explosive limit
C.At the upper explosive limit
D.Only after the gas reaches 10 percent by volume
Explanation: The odorization requirement is set at one-fifth of the lower explosive limit so occupants smell gas long before a flammable mixture can form. Operators verify the concentration periodically with an instrument that determines where the odor becomes readily detectable.

About the AL Municipal Utility Exam

The Alabama Municipal and Utility Contractor Examination is a classification trade examination administered by PSI for the Alabama Licensing Board for General Contractors. The official open-book exam has 90 questions, a 70% (63 of 90 correct) passing standard, and 220 minutes allowed. PSI examination fee is $106 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

90 scored questions

Time Limit

220 minutes

Passing Score

70%

Exam Fee

$106 (PSI Services LLC (for Alabama Licensing Board for General Contractors))

AL Municipal Utility Exam Content Outline

25%

Water and Sewer Utilities

Municipal water and sewer construction

20%

Excavation and Trenching

Trenching, shoring, and excavation

15%

Concrete and Structures

Utility concrete structures

15%

Safety and One Call

OSHA and Alabama 1Call

15%

Stormwater and Drainage

Storm drainage systems

10%

Estimating and Plans

Utility plans and estimating

How to Pass the AL Municipal Utility Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 90 questions
  • Time limit: 220 minutes
  • Exam fee: $106

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 Municipal Utility 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 Municipal Utility exam?

The official PSI trade examination has 90 scored questions (plus possible experimental items). Passing is 70% (63 of 90 correct) within 220 minutes.

How much does the AL Municipal Utility exam cost?

PSI lists $106 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.