Minnesota Boiler Engineer(Class A)
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1. Under Minnesota law, which engineer classification is designated as
Grade A and is authorized to take charge of and be responsible for
the safe operation and maintenance of all classes of boilers, steam
engines, turbines, and their appurtenances?
A. Second-class engineer, Grade A
B. First-class engineer, Grade A
C. Chief engineer, Grade A
D. Special engineer
Answer: C. Chief engineer, Grade A
Rationale: A Chief Engineer Grade A license represents the broadest
Grade A authority and requires demonstrated competence in all classes
of boilers, steam engines, turbines, and associated equipment.
2. What is the minimum age for an applicant seeking a Minnesota
Chief Engineer Grade A license?
,A. 16 years
B. 18 years
C. 19 years
D. 21 years
Answer: B. 18 years
Rationale: Minnesota law requires an applicant for a Chief Engineer
Grade A license to be at least 18 years of age.
3. Before receiving a Minnesota Chief Engineer Grade A license, what
minimum boiler-operating experience must generally be attested
to?
A. One year
B. Two years
C. Three years
D. Five years
Answer: D. Five years
Rationale: Chief Engineer Grade A applicants generally must attest to at
least five years of actual experience operating boilers, subject to
statutory exceptions.
4. In addition to the boiler-operating experience, a Chief Engineer
Grade A applicant generally must have at least how much
experience operating steam engines or turbines?
A. Six months
B. One year
,C. Two years
D. Five years
Answer: C. Two years
Rationale: The Grade A chief engineer qualification specifically requires
at least two years of experience operating engines or turbines in
addition to the required boiler experience, subject to statutory
exceptions.
5. Under Minnesota's statutory definition, a steam boiler operating at
a pressure of 20 psig is classified as what type of boiler?
A. Low-pressure boiler
B. High-pressure boiler
C. Special boiler
D. Historical boiler
Answer: B. High-pressure boiler
Rationale: Minnesota defines a high-pressure boiler as a boiler
operating at a steam or other vapor pressure exceeding 15 psig.
6. A steam boiler operates at exactly 15 psig. Under Minnesota's
statutory pressure classification, how is it classified?
A. High-pressure boiler
B. Low-pressure boiler
C. Power boiler only
D. Special engineer boiler
Answer: B. Low-pressure boiler
, Rationale: Minnesota defines a low-pressure steam boiler as one
operating at 15 psig or less; the high-pressure threshold is greater than
15 psig.
7. A hot-water boiler operates at 170 psig. Under Minnesota's
statutory definition, which classification applies?
A. Low-pressure boiler
B. High-pressure boiler
C. Heating-only boiler
D. Special boiler
Answer: B. High-pressure boiler
Rationale: A water or other liquid boiler is high pressure when its
pressure exceeds 160 psig or its temperature exceeds 250°F.
8. A water boiler operates at 150 psig but at a temperature of 260°F.
How is it classified under Minnesota law?
A. Low-pressure boiler
B. High-pressure boiler
C. Atmospheric boiler
D. Historical boiler
Answer: B. High-pressure boiler
Rationale: Minnesota's definition makes a liquid boiler high pressure
when either its pressure exceeds 160 psig or its temperature exceeds
250°F, so 260°F qualifies.
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2027 Q&A| Instant
Download Pdf.
1. Under Minnesota law, which engineer classification is designated as
Grade A and is authorized to take charge of and be responsible for
the safe operation and maintenance of all classes of boilers, steam
engines, turbines, and their appurtenances?
A. Second-class engineer, Grade A
B. First-class engineer, Grade A
C. Chief engineer, Grade A
D. Special engineer
Answer: C. Chief engineer, Grade A
Rationale: A Chief Engineer Grade A license represents the broadest
Grade A authority and requires demonstrated competence in all classes
of boilers, steam engines, turbines, and associated equipment.
2. What is the minimum age for an applicant seeking a Minnesota
Chief Engineer Grade A license?
,A. 16 years
B. 18 years
C. 19 years
D. 21 years
Answer: B. 18 years
Rationale: Minnesota law requires an applicant for a Chief Engineer
Grade A license to be at least 18 years of age.
3. Before receiving a Minnesota Chief Engineer Grade A license, what
minimum boiler-operating experience must generally be attested
to?
A. One year
B. Two years
C. Three years
D. Five years
Answer: D. Five years
Rationale: Chief Engineer Grade A applicants generally must attest to at
least five years of actual experience operating boilers, subject to
statutory exceptions.
4. In addition to the boiler-operating experience, a Chief Engineer
Grade A applicant generally must have at least how much
experience operating steam engines or turbines?
A. Six months
B. One year
,C. Two years
D. Five years
Answer: C. Two years
Rationale: The Grade A chief engineer qualification specifically requires
at least two years of experience operating engines or turbines in
addition to the required boiler experience, subject to statutory
exceptions.
5. Under Minnesota's statutory definition, a steam boiler operating at
a pressure of 20 psig is classified as what type of boiler?
A. Low-pressure boiler
B. High-pressure boiler
C. Special boiler
D. Historical boiler
Answer: B. High-pressure boiler
Rationale: Minnesota defines a high-pressure boiler as a boiler
operating at a steam or other vapor pressure exceeding 15 psig.
6. A steam boiler operates at exactly 15 psig. Under Minnesota's
statutory pressure classification, how is it classified?
A. High-pressure boiler
B. Low-pressure boiler
C. Power boiler only
D. Special engineer boiler
Answer: B. Low-pressure boiler
, Rationale: Minnesota defines a low-pressure steam boiler as one
operating at 15 psig or less; the high-pressure threshold is greater than
15 psig.
7. A hot-water boiler operates at 170 psig. Under Minnesota's
statutory definition, which classification applies?
A. Low-pressure boiler
B. High-pressure boiler
C. Heating-only boiler
D. Special boiler
Answer: B. High-pressure boiler
Rationale: A water or other liquid boiler is high pressure when its
pressure exceeds 160 psig or its temperature exceeds 250°F.
8. A water boiler operates at 150 psig but at a temperature of 260°F.
How is it classified under Minnesota law?
A. Low-pressure boiler
B. High-pressure boiler
C. Atmospheric boiler
D. Historical boiler
Answer: B. High-pressure boiler
Rationale: Minnesota's definition makes a liquid boiler high pressure
when either its pressure exceeds 160 psig or its temperature exceeds
250°F, so 260°F qualifies.
