WISCONSIN (WI) UTILITY CONTRACTOR ACTUAL
EXAM 2026–2027 | 150 VERIFIED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES | FREE
PDF ACCESS
• This document contains verified Wisconsin (WI) Utility Contractor exam questions
with detailed EXPERT RATIONALE to help you understand the reasoning behind
each correct answer, not just memorize it.
• Study by attempting each question first before checking the highlighted correct
answer and EXPERT RATIONALE below it — this active recall method significantly
improves retention and exam readiness.
WISCONSIN (WI) UTILITY CONTRACTOR EXAM 2026–2027 300 VERIFIED
QUESTIONS & ANSWERS WITH DETAILED EXPERT RATIONALES
1. Under Wisconsin law, a utility contractor license is required when the
contract value for utility work exceeds what amount?
A. $1,000
B. $5,000
C. $2,500
D. $10,000
E. $500
CORRECT ANSWER: C. $2,500
EXPERT RATIONALE: Wisconsin statutes require a utility contractor to be licensed when
the total contract value for utility-related work exceeds $2,500. This threshold ensures
that contractors performing significant utility work meet minimum competency and
insurance standards.
2. Which Wisconsin state agency oversees the licensing of utility contractors?
,A. Wisconsin Department of Natural Resources
B. Wisconsin Public Service Commission
C. Wisconsin Department of Safety and Professional Services
D. Wisconsin Department of Transportation
E. Wisconsin Department of Agriculture
CORRECT ANSWER: C. Wisconsin Department of Safety and Professional
Services
EXPERT RATIONALE: The Wisconsin Department of Safety and Professional Services
(DSPS) is the regulatory body responsible for issuing and overseeing utility contractor
licenses in the state of Wisconsin.
3. What is the minimum liability insurance coverage required for a licensed
Wisconsin utility contractor?
A. $50,000
B. $100,000
C. $250,000
D. $500,000
E. $1,000,000
CORRECT ANSWER: D. $500,000
EXPERT RATIONALE: Wisconsin requires utility contractors to carry a minimum of
$500,000 in general liability insurance to protect the public and clients from damages
arising from utility construction and repair activities.
4. When excavating near underground utilities in Wisconsin, contractors must
call Diggers Hotline at least how many working days before digging?
A. One working day
,B. Two working days
C. Three working days
D. Five working days
E. Seven working days
CORRECT ANSWER: C. Three working days
EXPERT RATIONALE: Wisconsin law requires contractors to notify Diggers Hotline at
least three working days (excluding weekends and holidays) before beginning any
excavation to allow utility owners to mark their underground facilities.
5. What is the Diggers Hotline number used in Wisconsin?
A. 1-800-242-8511
B. 811
C. 911
D. 1-800-947-6727
E. 711
CORRECT ANSWER: B. 811
EXPERT RATIONALE: 811 is the national "Call Before You Dig" number, which connects
callers to their local one-call center. In Wisconsin, calling 811 connects to Diggers
Hotline, which notifies utility owners of planned excavation.
6. Under OSHA standards, the maximum depth a trench can be before shoring
or sloping is required is:
A. 3 feet
B. 4 feet
C. 5 feet
, D. 6 feet
E. 8 feet
CORRECT ANSWER: C. 5 feet
EXPERT RATIONALE: OSHA standard 29 CFR 1926.652 requires protective systems such
as shoring, sloping, or trench boxes for all excavations 5 feet or deeper, unless the
excavation is made entirely in stable rock.
7. In Wisconsin, what type of soil is classified as the most stable for trenching
purposes?
A. Type C
B. Type B
C. Type A
D. Sandy soil
E. Loam
CORRECT ANSWER: C. Type A
EXPERT RATIONALE: OSHA classifies Type A soil as the most stable and cohesive, with an
unconfined compressive strength of 1.5 tons per square foot or greater. Examples
include clay and silty clay when not fissured.
8. What is the required slope ratio for Type C soil in an open excavation?
A. ¾:1
B. ½:1
C. 1:1
D. 1½:1
E. 2:1
EXAM 2026–2027 | 150 VERIFIED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES | FREE
PDF ACCESS
• This document contains verified Wisconsin (WI) Utility Contractor exam questions
with detailed EXPERT RATIONALE to help you understand the reasoning behind
each correct answer, not just memorize it.
• Study by attempting each question first before checking the highlighted correct
answer and EXPERT RATIONALE below it — this active recall method significantly
improves retention and exam readiness.
WISCONSIN (WI) UTILITY CONTRACTOR EXAM 2026–2027 300 VERIFIED
QUESTIONS & ANSWERS WITH DETAILED EXPERT RATIONALES
1. Under Wisconsin law, a utility contractor license is required when the
contract value for utility work exceeds what amount?
A. $1,000
B. $5,000
C. $2,500
D. $10,000
E. $500
CORRECT ANSWER: C. $2,500
EXPERT RATIONALE: Wisconsin statutes require a utility contractor to be licensed when
the total contract value for utility-related work exceeds $2,500. This threshold ensures
that contractors performing significant utility work meet minimum competency and
insurance standards.
2. Which Wisconsin state agency oversees the licensing of utility contractors?
,A. Wisconsin Department of Natural Resources
B. Wisconsin Public Service Commission
C. Wisconsin Department of Safety and Professional Services
D. Wisconsin Department of Transportation
E. Wisconsin Department of Agriculture
CORRECT ANSWER: C. Wisconsin Department of Safety and Professional
Services
EXPERT RATIONALE: The Wisconsin Department of Safety and Professional Services
(DSPS) is the regulatory body responsible for issuing and overseeing utility contractor
licenses in the state of Wisconsin.
3. What is the minimum liability insurance coverage required for a licensed
Wisconsin utility contractor?
A. $50,000
B. $100,000
C. $250,000
D. $500,000
E. $1,000,000
CORRECT ANSWER: D. $500,000
EXPERT RATIONALE: Wisconsin requires utility contractors to carry a minimum of
$500,000 in general liability insurance to protect the public and clients from damages
arising from utility construction and repair activities.
4. When excavating near underground utilities in Wisconsin, contractors must
call Diggers Hotline at least how many working days before digging?
A. One working day
,B. Two working days
C. Three working days
D. Five working days
E. Seven working days
CORRECT ANSWER: C. Three working days
EXPERT RATIONALE: Wisconsin law requires contractors to notify Diggers Hotline at
least three working days (excluding weekends and holidays) before beginning any
excavation to allow utility owners to mark their underground facilities.
5. What is the Diggers Hotline number used in Wisconsin?
A. 1-800-242-8511
B. 811
C. 911
D. 1-800-947-6727
E. 711
CORRECT ANSWER: B. 811
EXPERT RATIONALE: 811 is the national "Call Before You Dig" number, which connects
callers to their local one-call center. In Wisconsin, calling 811 connects to Diggers
Hotline, which notifies utility owners of planned excavation.
6. Under OSHA standards, the maximum depth a trench can be before shoring
or sloping is required is:
A. 3 feet
B. 4 feet
C. 5 feet
, D. 6 feet
E. 8 feet
CORRECT ANSWER: C. 5 feet
EXPERT RATIONALE: OSHA standard 29 CFR 1926.652 requires protective systems such
as shoring, sloping, or trench boxes for all excavations 5 feet or deeper, unless the
excavation is made entirely in stable rock.
7. In Wisconsin, what type of soil is classified as the most stable for trenching
purposes?
A. Type C
B. Type B
C. Type A
D. Sandy soil
E. Loam
CORRECT ANSWER: C. Type A
EXPERT RATIONALE: OSHA classifies Type A soil as the most stable and cohesive, with an
unconfined compressive strength of 1.5 tons per square foot or greater. Examples
include clay and silty clay when not fissured.
8. What is the required slope ratio for Type C soil in an open excavation?
A. ¾:1
B. ½:1
C. 1:1
D. 1½:1
E. 2:1
