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MINNESOTA SPECIAL ENGINEER BOILER
LICENSE PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS 2026
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? - correct-answer -10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - correct-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)? - correct-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? - correct-answer -In any plant regardless of size under the
direct supervision of a properly licensed engineer.
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The purpose of low water cut out on a steam or hot water boiler is to what? -
correct-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? - correct-answer -Safety valve and/or an ASME approved safety
relief valve.
A Tri indicator could be found on a: - correct-answer -Hot water boiler
A tri indicator would inform the boiler operator of what? - correct-answer -The
TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the ALTITUDE
of water in feet.
What type of boiler can be made larger? - correct-answer -Cast Iron sectional
What type of boiler has the water surrounding the tubes? - correct-answer -Fire
tube
MINNESOTA SPECIAL ENGINEER BOILER
LICENSE PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS 2026
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? - correct-answer -10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - correct-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)? - correct-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? - correct-answer -In any plant regardless of size under the
direct supervision of a properly licensed engineer.
, 2
The purpose of low water cut out on a steam or hot water boiler is to what? -
correct-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? - correct-answer -Safety valve and/or an ASME approved safety
relief valve.
A Tri indicator could be found on a: - correct-answer -Hot water boiler
A tri indicator would inform the boiler operator of what? - correct-answer -The
TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the ALTITUDE
of water in feet.
What type of boiler can be made larger? - correct-answer -Cast Iron sectional
What type of boiler has the water surrounding the tubes? - correct-answer -Fire
tube
