AK Utility Contractor Exam Questions
And Correct Answers (Verified Answers)
Plus Rationale2026 Q&A| Instant
Download Pdf
1. What is the primary purpose of a utility contractor?
A. Design bridges
B. Install and maintain utility systems
C. Operate heavy machinery exclusively
D. Conduct traffic studies
B. Install and maintain utility systems
Rationale: Utility contractors specialize in installing, repairing, and
maintaining water, gas, sewer, and electrical utility systems.
2. Which safety equipment is essential when working near energized
electrical lines?
A. Safety boots only
B. Rubber gloves and insulating tools
C. Hard hat only
D. Earplugs
B. Rubber gloves and insulating tools
Rationale: When working with electricity, insulating gloves and tools
prevent electrical shock.
3. Before digging near underground utilities, what must be done?
A. Dig immediately
B. Contact local utility marking services
C. Use only hand tools
D. Wait for a supervisor to arrive
B. Contact local utility marking services
, Rationale: Utilities must be marked to prevent accidental damage and
ensure worker safety.
4. What is the minimum distance to keep heavy equipment from overhead
power lines?
A. 1 foot
B. 5 feet
C. 10 feet or as specified by OSHA
D. 50 feet
C. 10 feet or as specified by OSHA
Rationale: OSHA regulations specify safe clearance distances from
energized lines to prevent electrocution.
5. Which type of pipe is most commonly used for potable water
distribution?
A. Cast iron
B. PVC
C. Aluminum
D. Steel
B. PVC
Rationale: PVC is lightweight, corrosion-resistant, and commonly
used for potable water systems.
6. What is the purpose of a trench box?
A. Protect workers in an excavation
B. Store tools
C. Mix concrete
D. Support above-ground scaffolding
A. Protect workers in an excavation
Rationale: Trench boxes prevent cave-ins and protect workers during
underground utility installations.
7. Which device is used to detect buried utilities before excavation?
A. Pipe wrench
B. Ground-penetrating radar
C. Hydraulic jack
D. Tape measure
B. Ground-penetrating radar
Rationale: GPR allows contractors to locate underground utilities
without digging.
, 8. What is the purpose of a manhole in a sewer system?
A. Store water
B. Provide access for maintenance and inspection
C. Filter debris
D. Support electrical wires
B. Provide access for maintenance and inspection
Rationale: Manholes allow entry into underground sewer systems for
maintenance and inspection.
9. Which type of joint is commonly used in PVC water piping?
A. Threaded joint
B. Solvent-weld joint
C. Flanged joint
D. Soldered joint
B. Solvent-weld joint
Rationale: PVC pipes are usually joined using a solvent that
chemically fuses the pipe and fitting.
10. What is the first step in emergency response for a gas leak?
A. Evacuate the area and notify authorities
B. Try to repair the leak immediately
C. Ignore small leaks
D. Turn on electrical equipment nearby
A. Evacuate the area and notify authorities
Rationale: Safety comes first; evacuation and notification prevent
explosions and injury.
11. What is the primary function of a backflow preventer?
A. Measure water pressure
B. Prevent contaminated water from entering the potable system
C. Increase flow rate
D. Connect two pipelines
B. Prevent contaminated water from entering the potable system
Rationale: Backflow preventers ensure water systems remain safe
from contamination.
12. What is the typical slope for a gravity sewer line?
A. 0.1%
B. 1–2%
C. 10%
D. 25%
And Correct Answers (Verified Answers)
Plus Rationale2026 Q&A| Instant
Download Pdf
1. What is the primary purpose of a utility contractor?
A. Design bridges
B. Install and maintain utility systems
C. Operate heavy machinery exclusively
D. Conduct traffic studies
B. Install and maintain utility systems
Rationale: Utility contractors specialize in installing, repairing, and
maintaining water, gas, sewer, and electrical utility systems.
2. Which safety equipment is essential when working near energized
electrical lines?
A. Safety boots only
B. Rubber gloves and insulating tools
C. Hard hat only
D. Earplugs
B. Rubber gloves and insulating tools
Rationale: When working with electricity, insulating gloves and tools
prevent electrical shock.
3. Before digging near underground utilities, what must be done?
A. Dig immediately
B. Contact local utility marking services
C. Use only hand tools
D. Wait for a supervisor to arrive
B. Contact local utility marking services
, Rationale: Utilities must be marked to prevent accidental damage and
ensure worker safety.
4. What is the minimum distance to keep heavy equipment from overhead
power lines?
A. 1 foot
B. 5 feet
C. 10 feet or as specified by OSHA
D. 50 feet
C. 10 feet or as specified by OSHA
Rationale: OSHA regulations specify safe clearance distances from
energized lines to prevent electrocution.
5. Which type of pipe is most commonly used for potable water
distribution?
A. Cast iron
B. PVC
C. Aluminum
D. Steel
B. PVC
Rationale: PVC is lightweight, corrosion-resistant, and commonly
used for potable water systems.
6. What is the purpose of a trench box?
A. Protect workers in an excavation
B. Store tools
C. Mix concrete
D. Support above-ground scaffolding
A. Protect workers in an excavation
Rationale: Trench boxes prevent cave-ins and protect workers during
underground utility installations.
7. Which device is used to detect buried utilities before excavation?
A. Pipe wrench
B. Ground-penetrating radar
C. Hydraulic jack
D. Tape measure
B. Ground-penetrating radar
Rationale: GPR allows contractors to locate underground utilities
without digging.
, 8. What is the purpose of a manhole in a sewer system?
A. Store water
B. Provide access for maintenance and inspection
C. Filter debris
D. Support electrical wires
B. Provide access for maintenance and inspection
Rationale: Manholes allow entry into underground sewer systems for
maintenance and inspection.
9. Which type of joint is commonly used in PVC water piping?
A. Threaded joint
B. Solvent-weld joint
C. Flanged joint
D. Soldered joint
B. Solvent-weld joint
Rationale: PVC pipes are usually joined using a solvent that
chemically fuses the pipe and fitting.
10. What is the first step in emergency response for a gas leak?
A. Evacuate the area and notify authorities
B. Try to repair the leak immediately
C. Ignore small leaks
D. Turn on electrical equipment nearby
A. Evacuate the area and notify authorities
Rationale: Safety comes first; evacuation and notification prevent
explosions and injury.
11. What is the primary function of a backflow preventer?
A. Measure water pressure
B. Prevent contaminated water from entering the potable system
C. Increase flow rate
D. Connect two pipelines
B. Prevent contaminated water from entering the potable system
Rationale: Backflow preventers ensure water systems remain safe
from contamination.
12. What is the typical slope for a gravity sewer line?
A. 0.1%
B. 1–2%
C. 10%
D. 25%
