Minnesota High Pressure Piping Contractor
Examination Questions and Correct Answers
(Verified Answers) Plus Rationale 2027 Q&A|
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1. Which of the following is considered a high pressure piping
system under Minnesota rules?
A. A domestic water system operating at 40 psi
B. A steam system designed to operate at 10 psi
C. A steam system designed to operate at more than 15 psi
D. A residential hot-water system operating at 20 psi
Answer: C. A steam system designed to operate at more than 15 psi
Rationale: Minnesota defines steam or heating-media piping as high
pressure piping when steam exceeds 15 psig. Heating-media systems
also fall within the definition when the applicable pressure and
temperature thresholds are exceeded.
, 2. A Minnesota high pressure piping contractor must generally
obtain a contractor license before:
A. Hiring an office employee
B. Obtaining a permit for high pressure piping work
C. Purchasing pipe
D. Advertising the business
Answer: B. Obtaining a permit for high pressure piping work
Rationale: Minnesota requires an individual, partnership, firm,
corporation, or association performing regulated high pressure piping
work to have or use a properly licensed high pressure piping
contractor business before obtaining the required permit.
3. Which Minnesota agency administers high pressure piping
contractor and pipefitter licensing?
A. Department of Public Safety
B. Department of Commerce
C. Department of Labor and Industry
D. Department of Transportation
Answer: C. Department of Labor and Industry
,Rationale: The Minnesota Department of Labor and Industry (DLI)
administers the state's high pressure piping licensing program and
related requirements.
4. A business that is not an individual must generally have which
licensed professional affiliated with the business?
A. Licensed building official
B. Licensed master high pressure pipefitter
C. Licensed electrician
D. Licensed boiler operator
Answer: B. Licensed master high pressure pipefitter
Rationale: Minnesota contractor licensing requirements provide that a
business entity must have a licensed master high pressure pipefitter
working full time for and affiliated with the business in the required
capacity.
5. What is the minimum passing score generally required for a
Minnesota high pressure pipefitter licensing examination?
A. 60 percent
B. 65 percent
C. 70 percent
D. 75 percent
, Answer: C. 70 percent
Rationale: Minnesota's high pressure pipefitter licensing rules
establish a weighted passing score of at least 70 out of 100.
6. What is generally required of an applicant who fails the
Minnesota high pressure pipefitter examination?
A. Immediate retesting on the same day
B. Waiting at least 30 days before retaking the examination
C. Waiting six months
D. Completing a new apprenticeship
Answer: B. Waiting at least 30 days before retaking the examination
Rationale: Minnesota requires an applicant who fails the examination
to wait at least one month, or 30 days, before retaking it and to
submit a new application and examination fee.
7. What is the minimum age specified for a Minnesota master high
pressure pipefitter applicant?
A. 18
B. 19
C. 20
D. 21
Answer: D. 21
Examination Questions and Correct Answers
(Verified Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1. Which of the following is considered a high pressure piping
system under Minnesota rules?
A. A domestic water system operating at 40 psi
B. A steam system designed to operate at 10 psi
C. A steam system designed to operate at more than 15 psi
D. A residential hot-water system operating at 20 psi
Answer: C. A steam system designed to operate at more than 15 psi
Rationale: Minnesota defines steam or heating-media piping as high
pressure piping when steam exceeds 15 psig. Heating-media systems
also fall within the definition when the applicable pressure and
temperature thresholds are exceeded.
, 2. A Minnesota high pressure piping contractor must generally
obtain a contractor license before:
A. Hiring an office employee
B. Obtaining a permit for high pressure piping work
C. Purchasing pipe
D. Advertising the business
Answer: B. Obtaining a permit for high pressure piping work
Rationale: Minnesota requires an individual, partnership, firm,
corporation, or association performing regulated high pressure piping
work to have or use a properly licensed high pressure piping
contractor business before obtaining the required permit.
3. Which Minnesota agency administers high pressure piping
contractor and pipefitter licensing?
A. Department of Public Safety
B. Department of Commerce
C. Department of Labor and Industry
D. Department of Transportation
Answer: C. Department of Labor and Industry
,Rationale: The Minnesota Department of Labor and Industry (DLI)
administers the state's high pressure piping licensing program and
related requirements.
4. A business that is not an individual must generally have which
licensed professional affiliated with the business?
A. Licensed building official
B. Licensed master high pressure pipefitter
C. Licensed electrician
D. Licensed boiler operator
Answer: B. Licensed master high pressure pipefitter
Rationale: Minnesota contractor licensing requirements provide that a
business entity must have a licensed master high pressure pipefitter
working full time for and affiliated with the business in the required
capacity.
5. What is the minimum passing score generally required for a
Minnesota high pressure pipefitter licensing examination?
A. 60 percent
B. 65 percent
C. 70 percent
D. 75 percent
, Answer: C. 70 percent
Rationale: Minnesota's high pressure pipefitter licensing rules
establish a weighted passing score of at least 70 out of 100.
6. What is generally required of an applicant who fails the
Minnesota high pressure pipefitter examination?
A. Immediate retesting on the same day
B. Waiting at least 30 days before retaking the examination
C. Waiting six months
D. Completing a new apprenticeship
Answer: B. Waiting at least 30 days before retaking the examination
Rationale: Minnesota requires an applicant who fails the examination
to wait at least one month, or 30 days, before retaking it and to
submit a new application and examination fee.
7. What is the minimum age specified for a Minnesota master high
pressure pipefitter applicant?
A. 18
B. 19
C. 20
D. 21
Answer: D. 21
