MN Special Engineer Boiler Key Exam Coverage Areas:
License
Boiler Fundamentals: Basic principles, types
of boilers (steam and hot water), and
components like burners, gauges, and
combustion chambers.
Safety Procedures: Knowledge of safety
valves (testing and operation), pressure
vessel safety, and emergency protocols
(e.g., Low Water Cut-Off testing).
Operational Procedures: Start-up, shut-
down, and routine operation.
Maintenance & Troubleshooting:
Daily/weekly checks, identifying common
problems, and water treatment to prevent
corrosion.
, Regulatory Requirements: Minnesota state
laws, codes, and licensing rules.
A person holding a current High and low pressure boilers not to
Minnesota special engineer exceed a total of 50 boiler horsepower or a
license can be in charge of, or a shift engineer in a 100-horsepower plant
shift engineer, in what size
plant?
What type of hot water boiler low pressure boiler
does not exceed 160psig or a
temperature of 250 degrees?
In any plant, regardless of size, under the
A special engineer may serve as direct supervision of a properly licensed
an apprentice of what size engineer
water or steam boiler?
,What type of steam boiler low pressure boiler
operates at 15 psig or less?
For the purpose of rating boiler 10 square feet
horsepower, for an engineers
license only, how many square
feet of a boiler surface is
equivalent to one boiler
horsepower?
Where is the pyrometer in the exhaust gases leaving the boiler
located?
What does a pyrometer tell temperature
you?
, An aquastat would be used in hot water boiler
what type of boiler?
What is used to throttle or Globe valve
restrict flow?
What are three types of drafts? Natural, Forced, Induced
What shuts off the burner when Low Water Cut Out (LWCO)
a low water condition exists on
a steam or hot water boiler?
What is the valve(s) that must Safety Valve or ASME approved safety relief
release all excess pressure on a valve
steam or hot water boiler?
License
Boiler Fundamentals: Basic principles, types
of boilers (steam and hot water), and
components like burners, gauges, and
combustion chambers.
Safety Procedures: Knowledge of safety
valves (testing and operation), pressure
vessel safety, and emergency protocols
(e.g., Low Water Cut-Off testing).
Operational Procedures: Start-up, shut-
down, and routine operation.
Maintenance & Troubleshooting:
Daily/weekly checks, identifying common
problems, and water treatment to prevent
corrosion.
, Regulatory Requirements: Minnesota state
laws, codes, and licensing rules.
A person holding a current High and low pressure boilers not to
Minnesota special engineer exceed a total of 50 boiler horsepower or a
license can be in charge of, or a shift engineer in a 100-horsepower plant
shift engineer, in what size
plant?
What type of hot water boiler low pressure boiler
does not exceed 160psig or a
temperature of 250 degrees?
In any plant, regardless of size, under the
A special engineer may serve as direct supervision of a properly licensed
an apprentice of what size engineer
water or steam boiler?
,What type of steam boiler low pressure boiler
operates at 15 psig or less?
For the purpose of rating boiler 10 square feet
horsepower, for an engineers
license only, how many square
feet of a boiler surface is
equivalent to one boiler
horsepower?
Where is the pyrometer in the exhaust gases leaving the boiler
located?
What does a pyrometer tell temperature
you?
, An aquastat would be used in hot water boiler
what type of boiler?
What is used to throttle or Globe valve
restrict flow?
What are three types of drafts? Natural, Forced, Induced
What shuts off the burner when Low Water Cut Out (LWCO)
a low water condition exists on
a steam or hot water boiler?
What is the valve(s) that must Safety Valve or ASME approved safety relief
release all excess pressure on a valve
steam or hot water boiler?
