MINNESOTA SPECIAL ENGINEER BOILER LICENSE PRACTICE EXAM QUESTIONS AND ANSWERS ALREADY
GRADED A+| 100% VERIFIED SOLUTIONS
Core Domains
Boiler Design, Types, and Construction
Thermodynamics and Heat Transfer
Boiler Fittings, Valves, and Piping
Safety Devices and Controls
Combustion Theory and Fuel Systems
Water Treatment and Feedwater Systems
Boiler Operation, Startup, and Shutdown
Emergency Procedures and Hazardous Conditions
Maintenance, Inspection, and Logbooks
Minnesota Statutes, Rules, and Regulatory Compliance
Introduction
,This comprehensive practice examination is designed to prepare candidates for the Minnesota Special Engineer
Boiler License Exam administered by the Minnesota Department of Labor and Industry (DLI). The assessment
evaluates foundational knowledge across all core domains of boiler operation, including thermodynamics, boiler
design, safety devices, combustion systems, water treatment, and state-specific regulations. Through multiple-
choice questions and real-world scenarios, candidates demonstrate the technical knowledge and practical skills
required for the safe, competent, and responsible operation of boilers up to 50 horsepower. This examination serves
as a critical tool for assessing readiness for licensure, emphasizing safety protocols, code compliance, and
professional standards in boiler operations.
SECTION ONE: QUESTIONS 1–100
1. What is the minimum passing score required for the State of Minnesota boiler license test?
A. 60%
B. 65%
C. 70%
D. 75%
🟢C
🔴 RATIONALE: Minnesota requires a 70% passing score on the state-administered written exam for all boiler
engineer license grades.
,2. According to Minnesota law, a Special Engineer license allows the holder to be in charge of a boiler up to
what maximum horsepower?
A. 30 horsepower
B. 50 horsepower
C. 75 horsepower
D. 100 horsepower
🟢B
🔴 RATIONALE: A Minnesota Special Engineer license allows the holder to be in charge of and responsible for
all classes of boilers of not more than 50 horsepower.
3. For the purpose of rating boiler horsepower for an Engineer's License only, how many square feet of boiler
heating surface are equivalent to one boiler horsepower?
A. 5 square feet
B. 8 square feet
C. 10 square feet
D. 12 square feet
🟢C
, 🔴 RATIONALE: In accordance with Minnesota statutes, one boiler horsepower for conventional boilers is equal
to 10 square feet of boiler heating surface.
4. What is meant by the term "Low Pressure Boiler" in Minnesota?
A. A boiler operating at a steam pressure of 50 psig or less
B. A boiler operating at a steam or vapor pressure of 15 psig or less, or a hot water boiler with pressure not
exceeding 160 psig and temperature not exceeding 250°F
C. A boiler operating at a steam pressure of 100 psig or less
D. A boiler operating at any pressure below atmospheric
🟢B
🔴 RATIONALE: A low-pressure boiler is defined as a boiler operating at a steam or vapor pressure of 15 psig or
less, or a hot water or other liquid boiler with pressure not exceeding 160 psig and temperature not exceeding
250°F.
5. A low-pressure boiler in Minnesota can be left unattended for a maximum of how many hours?
A. 24 hours
B. 36 hours
C. 48 hours
D. 72 hours
GRADED A+| 100% VERIFIED SOLUTIONS
Core Domains
Boiler Design, Types, and Construction
Thermodynamics and Heat Transfer
Boiler Fittings, Valves, and Piping
Safety Devices and Controls
Combustion Theory and Fuel Systems
Water Treatment and Feedwater Systems
Boiler Operation, Startup, and Shutdown
Emergency Procedures and Hazardous Conditions
Maintenance, Inspection, and Logbooks
Minnesota Statutes, Rules, and Regulatory Compliance
Introduction
,This comprehensive practice examination is designed to prepare candidates for the Minnesota Special Engineer
Boiler License Exam administered by the Minnesota Department of Labor and Industry (DLI). The assessment
evaluates foundational knowledge across all core domains of boiler operation, including thermodynamics, boiler
design, safety devices, combustion systems, water treatment, and state-specific regulations. Through multiple-
choice questions and real-world scenarios, candidates demonstrate the technical knowledge and practical skills
required for the safe, competent, and responsible operation of boilers up to 50 horsepower. This examination serves
as a critical tool for assessing readiness for licensure, emphasizing safety protocols, code compliance, and
professional standards in boiler operations.
SECTION ONE: QUESTIONS 1–100
1. What is the minimum passing score required for the State of Minnesota boiler license test?
A. 60%
B. 65%
C. 70%
D. 75%
🟢C
🔴 RATIONALE: Minnesota requires a 70% passing score on the state-administered written exam for all boiler
engineer license grades.
,2. According to Minnesota law, a Special Engineer license allows the holder to be in charge of a boiler up to
what maximum horsepower?
A. 30 horsepower
B. 50 horsepower
C. 75 horsepower
D. 100 horsepower
🟢B
🔴 RATIONALE: A Minnesota Special Engineer license allows the holder to be in charge of and responsible for
all classes of boilers of not more than 50 horsepower.
3. For the purpose of rating boiler horsepower for an Engineer's License only, how many square feet of boiler
heating surface are equivalent to one boiler horsepower?
A. 5 square feet
B. 8 square feet
C. 10 square feet
D. 12 square feet
🟢C
, 🔴 RATIONALE: In accordance with Minnesota statutes, one boiler horsepower for conventional boilers is equal
to 10 square feet of boiler heating surface.
4. What is meant by the term "Low Pressure Boiler" in Minnesota?
A. A boiler operating at a steam pressure of 50 psig or less
B. A boiler operating at a steam or vapor pressure of 15 psig or less, or a hot water boiler with pressure not
exceeding 160 psig and temperature not exceeding 250°F
C. A boiler operating at a steam pressure of 100 psig or less
D. A boiler operating at any pressure below atmospheric
🟢B
🔴 RATIONALE: A low-pressure boiler is defined as a boiler operating at a steam or vapor pressure of 15 psig or
less, or a hot water or other liquid boiler with pressure not exceeding 160 psig and temperature not exceeding
250°F.
5. A low-pressure boiler in Minnesota can be left unattended for a maximum of how many hours?
A. 24 hours
B. 36 hours
C. 48 hours
D. 72 hours
