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Minnesota Special Engineer Boiler
License Practice Exam Questions and
Answers (100% Correct Answers)
Already Graded A+
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? Ans: 10 Sq.
© 2026 Assignment
Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? Ans: Boilers
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operating at a steam or other vapor pressure of 15psig or less,
Expert
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)? Ans: 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? Ans: 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? Ans: 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? Ans: Safety valve and/or
an ASME approved safety relief valve.
, 2
A Tri indicator could be found on a: Ans: Hot water boiler
A tri indicator would inform the boiler operator of what? Ans:
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? Ans: The instant release of energy stored in the
water as heat.
© 2026 Assignment
An ASME approved safety relieve calve used on a hot water
boiler is tested at the factory on what? Ans: Steam first then
hot water.
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Expert
Some of the things you could find on a steam boiler (or hot
water boiler) are what? Ans: Low water cut off, safety valve or
safety relief valve, pressure gauge.
What devices would only be found on a steam boiler? Ans:
Steam pressure gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used in
what? Ans: Hot water boiler
What is the purpose of the expansion tank? Ans: To provide
for expansion and contraction of the water volume as its
temperature varies.
On a hot water boiler, what is the purpose of the vent valve?
Ans: To make sure there is water inside the boiler and to vent
any trapped air.
If the safety valve or ASME safety relief valve leaks you would
do what? Ans: Have the valve repaired or replaced.
Minnesota Special Engineer Boiler
License Practice Exam Questions and
Answers (100% Correct Answers)
Already Graded A+
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? Ans: 10 Sq.
© 2026 Assignment
Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? Ans: Boilers
Guru01 - Stuvia
operating at a steam or other vapor pressure of 15psig or less,
Expert
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)? Ans: 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? Ans: 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? Ans: 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? Ans: Safety valve and/or
an ASME approved safety relief valve.
, 2
A Tri indicator could be found on a: Ans: Hot water boiler
A tri indicator would inform the boiler operator of what? Ans:
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? Ans: The instant release of energy stored in the
water as heat.
© 2026 Assignment
An ASME approved safety relieve calve used on a hot water
boiler is tested at the factory on what? Ans: Steam first then
hot water.
Guru01 - Stuvia
Expert
Some of the things you could find on a steam boiler (or hot
water boiler) are what? Ans: Low water cut off, safety valve or
safety relief valve, pressure gauge.
What devices would only be found on a steam boiler? Ans:
Steam pressure gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used in
what? Ans: Hot water boiler
What is the purpose of the expansion tank? Ans: To provide
for expansion and contraction of the water volume as its
temperature varies.
On a hot water boiler, what is the purpose of the vent valve?
Ans: To make sure there is water inside the boiler and to vent
any trapped air.
If the safety valve or ASME safety relief valve leaks you would
do what? Ans: Have the valve repaired or replaced.
