Minnesota Special Engineer
Boiler License Exam Study
Guide – Practice Questions
with Verified Answers. GRADED
A+. Latest 2026/2027 Update
For the purpose of rating boiler horsepower for an Engineers License only, how
many square feet of boiler surface shall be equivalent to one boiler
horsepower on a boiler? - Answer✔✔-10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - Answer✔✔-Boilers
operating at a steam or other vapor pressure of 15psig or less, or a hot water
or other liquid boiler in which the pressure does not exceed 160 psig or a
temperature of 250 degrees F.
A person holding a current State of Minnesota Special Engineers License could
be in charge of, or a shift engineer in what size plant(s)? - Answer✔✔-High and
Low pressure boilers not to exceed a total of 50 boiler horsepower, or a shift
engineer in a 100 horsepower plant.
Special Engineer may serve as an apprentice of what size water/liquid or
steam/vapor boiler? - Answer✔✔-In any plant regardless of size under the
direct supervision of a properly licensed engineer.
, The purpose of low water cut out on a steam or hot water boiler is to what? -
Answer✔✔-Shut off the burner when a low water condition exists.
The valve or valves that must relieve all excess pressure on a steam or hot
water boiler are what? - Answer✔✔-Safety valve and/or an ASME approved
safety relief valve.
A Tri indicator could be found on a: - Answer✔✔-Hot water boiler
A tri indicator would inform the boiler operator of what? - Answer✔✔-The
TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the
ALTITUDE of water in feet.
What is the destructive force in a steam or hot water boiler explosion? -
Answer✔✔-The instant release of energy stored in the water as heat.
An ASME approved safety relieve calve used on a hot water boiler is tested at
the factory on what? - Answer✔✔-Steam first then hot water.
Some of the things you could find on a steam boiler (or hot water boiler) are
what? - Answer✔✔-Low water cut off, safety valve or safety relief valve,
pressure gauge.
What devices would only be found on a steam boiler? - Answer✔✔-Steam
pressure gauge, tricocks, Pressuretrols
Boiler License Exam Study
Guide – Practice Questions
with Verified Answers. GRADED
A+. Latest 2026/2027 Update
For the purpose of rating boiler horsepower for an Engineers License only, how
many square feet of boiler surface shall be equivalent to one boiler
horsepower on a boiler? - Answer✔✔-10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - Answer✔✔-Boilers
operating at a steam or other vapor pressure of 15psig or less, or a hot water
or other liquid boiler in which the pressure does not exceed 160 psig or a
temperature of 250 degrees F.
A person holding a current State of Minnesota Special Engineers License could
be in charge of, or a shift engineer in what size plant(s)? - Answer✔✔-High and
Low pressure boilers not to exceed a total of 50 boiler horsepower, or a shift
engineer in a 100 horsepower plant.
Special Engineer may serve as an apprentice of what size water/liquid or
steam/vapor boiler? - Answer✔✔-In any plant regardless of size under the
direct supervision of a properly licensed engineer.
, The purpose of low water cut out on a steam or hot water boiler is to what? -
Answer✔✔-Shut off the burner when a low water condition exists.
The valve or valves that must relieve all excess pressure on a steam or hot
water boiler are what? - Answer✔✔-Safety valve and/or an ASME approved
safety relief valve.
A Tri indicator could be found on a: - Answer✔✔-Hot water boiler
A tri indicator would inform the boiler operator of what? - Answer✔✔-The
TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the
ALTITUDE of water in feet.
What is the destructive force in a steam or hot water boiler explosion? -
Answer✔✔-The instant release of energy stored in the water as heat.
An ASME approved safety relieve calve used on a hot water boiler is tested at
the factory on what? - Answer✔✔-Steam first then hot water.
Some of the things you could find on a steam boiler (or hot water boiler) are
what? - Answer✔✔-Low water cut off, safety valve or safety relief valve,
pressure gauge.
What devices would only be found on a steam boiler? - Answer✔✔-Steam
pressure gauge, tricocks, Pressuretrols
