Unlimited Commercial and Industrial
Plumbing Exam Newest Version 2026-2027
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1. According to 12 AAC 39.202, what is the primary experience requirement to
qualify to take the Unlimited Commercial and Industrial Plumbing Mechanical
Administrator exam?
A) 2 years as a journeyman plumber
B) 4 years as a master plumber in any state
C) 4 years as a journeyman plumber plus 4 years of management experience within the
last 6 years
D) 8 years of general construction experience
Correct Answer: C
Explanation: Alaska Administrative Code 12 AAC 39.202 is very specific. An applicant must
have practical experience as a journeyman plumber for at least four of the six years
immediately preceding the application AND management experience for at least four of
those six years (or a combination totaling four years). This dual requirement ensures the
administrator has both technical skills and project oversight ability.
2. Under AS 08.40.270, which codes must an applicant for a Mechanical
Administrator license be familiar with?
A) International Building Code (IBC) and NFPA 70
B) Uniform Plumbing Code, Uniform Mechanical Code, and Uniform Solar Energy Code
C) ASME Boiler Code and ASHRAE 90.1 only
D) Local city codes only
,Correct Answer: B
Explanation: AS 08.40.270 explicitly states that the examination must test knowledge of
the requirements of the Uniform Plumbing Code, Uniform Swimming Pool, Spa, and Hot
Tub Code, Uniform Solar Energy Code, and the Uniform Mechanical Code currently in
effect in the state. Alaska adopts the UPC as its primary plumbing code.
3. What is the minimum amount of surety bond required for a Mechanical
Administrator license in Alaska?
A) $5,000
B) $10,000
C) $15,000
D) $25,000
Correct Answer: B
*Explanation: Alaska law mandates a $10,000 bond for Mechanical Administrators to
ensure financial responsibility for the public. This bond protects property owners and
the public from financial loss due to the contractor's failure to complete a project or pay
subcontractors/suppliers.*
4. Pursuant to 12 AAC 39.212, what is the "Scope" of an Unlimited Commercial
and Industrial Plumbing license?
A) Limited to single-family dwellings and duplexes
B) Limited to residential hydronic heating systems only
C) Unlimited in all areas of plumbing, including commercial, industrial, and residential
structures
D) Limited to new construction only, not repair work
Correct Answer: C
Explanation: An Unlimited Commercial and Industrial Plumbing license authorizes the
holder to contract for, bid on, and perform plumbing work in all areas of plumbing,
including commercial, industrial, and residential structures, without any limitations on the
size or type of building. This is distinct from a Residential license which is more restricted
in scope .
5. Under 12 AAC 39.202, if an applicant has a degree in mechanical engineering,
how much field experience is required?
A) 4 years of management experience
B) 2 years of journeyman experience
,C) 1 year of experience as a journeyman plumber or field engineer within the last 3 years
D) 0 years; the degree replaces all experience
Correct Answer: C
Explanation: The regulation allows for a substitution pathway: a degree in mechanical
engineering plus practical experience as a journeyman plumber OR field engineer for at
least one of the three years immediately preceding the application. This recognizes the
value of engineering education while still requiring some hands-on field exposure .
6. What is the legal requirement regarding continuing education (CE) for
Mechanical Administrator license renewal in Alaska?
A) 8 hours of CE every year
B) 16 hours of CE every 2 years, including hours of code update
C) No CE required; only the renewal fee
D) 30 hours of OSHA training every 5 years
Correct Answer: B
Explanation: Alaska requires specific continuing education hours to keep the license
current, typically focusing on code changes and business practices. For Journeyman
Plumbers, sixteen (16) CE hours are required every 2 years, of which eight (8) hours must
relate to the Uniform Plumbing Code (UPC) along with significant changes and updates .
7. AS 08.40.230 grants the Board the power to:
A) Set hourly wage rates for plumbers
B) Adopt regulations governing the licensing and conduct of mechanical administrators
C) Design plumbing fixtures
D) Overrule local municipal fire codes
Correct Answer: B
Explanation: The Board's primary regulatory authority is to adopt regulations to carry out
the provisions of the chapter, including licensing standards. The Board has the power to
regulate the profession and enforce compliance with licensing laws, but it does not set
wages or design fixtures .
8. According to the regulations, a "mechanical administrator" is primarily
responsible for:
A) Physically installing all mechanical systems
B) Supervising and controlling the mechanical contracting business and ensuring code
compliance
, C) Designing mechanical systems only
D) Testing medical gas systems
Correct Answer: B
Explanation: A mechanical administrator is responsible for the overall supervision, control,
and management of the mechanical contracting business. This includes ensuring all work
complies with applicable codes and regulations, managing project planning, and
overseeing installations. The administrator must be actively engaged in the business, not
merely a figurehead .
9. The nonrefundable application fee for each Mechanical Administrator license
category is:
A) $100
B) $125
C) $150
D) $200
Correct Answer: C
Explanation: According to 12 AAC 02.245, the nonrefundable application fee for each
mechanical administrator license category applied for separately is $150. This fee is
required when submitting an initial license application .
10. Which of the following is explicitly NOT part of the Residential Plumbing
category but is included in the Unlimited Commercial category?
A) Installing a water heater in a house
B) Installing a toilet in a duplex
C) Designing the plumbing for a 6-story hotel
D) Installing gas piping downstream of the meter in a house
Correct Answer: C
*Explanation: The Residential license (12 AAC 39.312) is limited to single-family
dwellings or duplexes not exceeding three stories. A 6-story hotel requires an Unlimited
Commercial license due to the building height, increased complexity, higher fixture unit
loads, and larger system demands .*
11. AS 08.40.300 requires that a person acting as a Mechanical Administrator must
be:
A) A Certified Public Accountant (CPA)
B) Regularly employed by the contractor and actively engaged in the management of