1
Minnesota Special Engineer Boiler
License Practice Exam Questions,
Special Boiler License Practice Exam
Minnesota, Safe Boiler Operation
Fundamentals—Special Engineer's
Guide for the State of Minnesota,
Practice Test #1, Special Boiler
© 2025 Assignment
License Study Questions and Answers
Guru01 - Stuvia
(100% Correct Answers) Already
Graded A+
Expert
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. Ft. Heating
Surface
What is meant by the term "Low Pressure Boiler"?
Ans: 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)? Ans:
High and Low pressure boilers not to exceed a
, 2
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.
© 2025 Assignment
The purpose of low water cut out on a steam or
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hot water boiler is to what? Ans: Shut off the
burner when a low water condition exists.
Expert
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.
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.
, 3
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.
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.
© 2025 Assignment
What devices would only be found on a steam
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boiler? Ans: Steam pressure gauge, tricocks,
Pressuretrols
Expert
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.
, 4
Tri cocks or gauge cocks are sued on a steam
boiler to indicate? Ans: The true water level
inside the boiler.
On a steam or hot water boiler, the safety valve
or safety relief valve could be tested by? Ans:
When the boiler is running lifting the lever on
the valve or raising the pressure until they
operate.
© 2025 Assignment
Guru01 - Stuvia
Before starting a steam or hot water boiler you
should check for what? Ans: Water in the boiler.
Expert
True or False: Bottom blow down valves are used
for both steam and hot water. Ans: True
Safety valves or safety relief valves should be
manually tested at least...? Ans: Monthly
The low water cut out is one of the most
important electrical/mechanical devices on your
boiler. How often should you test it? Ans: Daily
What device must be located between a hot
water boiler and the expansion tank? Ans: A shut
off valve so the expansion can be isolated and
drained during operation of the boiler.
Minnesota Special Engineer Boiler
License Practice Exam Questions,
Special Boiler License Practice Exam
Minnesota, Safe Boiler Operation
Fundamentals—Special Engineer's
Guide for the State of Minnesota,
Practice Test #1, Special Boiler
© 2025 Assignment
License Study Questions and Answers
Guru01 - Stuvia
(100% Correct Answers) Already
Graded A+
Expert
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. Ft. Heating
Surface
What is meant by the term "Low Pressure Boiler"?
Ans: 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)? Ans:
High and Low pressure boilers not to exceed a
, 2
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.
© 2025 Assignment
The purpose of low water cut out on a steam or
Guru01 - Stuvia
hot water boiler is to what? Ans: Shut off the
burner when a low water condition exists.
Expert
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.
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.
, 3
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.
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.
© 2025 Assignment
What devices would only be found on a steam
Guru01 - Stuvia
boiler? Ans: Steam pressure gauge, tricocks,
Pressuretrols
Expert
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.
, 4
Tri cocks or gauge cocks are sued on a steam
boiler to indicate? Ans: The true water level
inside the boiler.
On a steam or hot water boiler, the safety valve
or safety relief valve could be tested by? Ans:
When the boiler is running lifting the lever on
the valve or raising the pressure until they
operate.
© 2025 Assignment
Guru01 - Stuvia
Before starting a steam or hot water boiler you
should check for what? Ans: Water in the boiler.
Expert
True or False: Bottom blow down valves are used
for both steam and hot water. Ans: True
Safety valves or safety relief valves should be
manually tested at least...? Ans: Monthly
The low water cut out is one of the most
important electrical/mechanical devices on your
boiler. How often should you test it? Ans: Daily
What device must be located between a hot
water boiler and the expansion tank? Ans: A shut
off valve so the expansion can be isolated and
drained during operation of the boiler.
