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