1 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
MN Boilers Test Bank – Complete Boiler
License Exam Questions & Answers
(2025/2026 Update)
Description:
Access the updated MN Boilers Test Bank with complete,
verified multiple-choice questions and answers. Covers
Minnesota Boiler License exam prep for all levels. Perfect
for 2025/2026 boiler certification and practice tests.
Page 1 of 225 MN Boilers Test Bank Page 1
,2 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
Minnesota Special Engineer Boiler
License Practice Exam Questions and
Answers
QUESTION
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
QUESTION
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.
QUESTION
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.
Page 2 of 225 MN Boilers Test Bank Page 2
,3 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
QUESTION
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.
QUESTION
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.
QUESTION
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.
QUESTION
A Tri indicator could be found on a:
Answer:
Hot water boiler
QUESTION
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.
Page 3 of 225 MN Boilers Test Bank Page 3
, 4 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
QUESTION
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.
QUESTION
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.
QUESTION
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.
QUESTION
What devices would only be found on a steam boiler?
Answer:
Steam pressure gauge, tricocks, Pressuretrols
QUESTION
An expansion tank or compression tank would be used in what?
Page 4 of 225 MN Boilers Test Bank Page 4
MN Boilers Test Bank – Complete Boiler
License Exam Questions & Answers
(2025/2026 Update)
Description:
Access the updated MN Boilers Test Bank with complete,
verified multiple-choice questions and answers. Covers
Minnesota Boiler License exam prep for all levels. Perfect
for 2025/2026 boiler certification and practice tests.
Page 1 of 225 MN Boilers Test Bank Page 1
,2 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
Minnesota Special Engineer Boiler
License Practice Exam Questions and
Answers
QUESTION
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
QUESTION
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.
QUESTION
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.
Page 2 of 225 MN Boilers Test Bank Page 2
,3 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
QUESTION
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.
QUESTION
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.
QUESTION
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.
QUESTION
A Tri indicator could be found on a:
Answer:
Hot water boiler
QUESTION
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.
Page 3 of 225 MN Boilers Test Bank Page 3
, 4 of 225 MN Boilers Test Bank MN Boilers Test Bank.pdf
QUESTION
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.
QUESTION
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.
QUESTION
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.
QUESTION
What devices would only be found on a steam boiler?
Answer:
Steam pressure gauge, tricocks, Pressuretrols
QUESTION
An expansion tank or compression tank would be used in what?
Page 4 of 225 MN Boilers Test Bank Page 4
