Minnesota Special Engineer Boiler
License Practice Exam Questions and
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? answer - 10 Sq.
Ft. Heating Surface
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.
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.
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.
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.
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.
A Tri indicator could be found on a: answer - Hot water boiler
, 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.
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.
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.
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.
What devices would only be found on a steam boiler? answer - Steam pressure gauge, tricocks,
Pressuretrols
An expansion tank or compression tank would be used in what? answer - Hot water boiler
What is the purpose of the expansion tank? answer - 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? answer - 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? answer - Have the valve
repaired or replaced.
Tri cocks or gauge cocks are sued on a steam boiler to indicate? answer - The true water level
inside the boiler.
License Practice Exam Questions and
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? answer - 10 Sq.
Ft. Heating Surface
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.
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.
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.
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.
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.
A Tri indicator could be found on a: answer - Hot water boiler
, 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.
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.
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.
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.
What devices would only be found on a steam boiler? answer - Steam pressure gauge, tricocks,
Pressuretrols
An expansion tank or compression tank would be used in what? answer - Hot water boiler
What is the purpose of the expansion tank? answer - 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? answer - 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? answer - Have the valve
repaired or replaced.
Tri cocks or gauge cocks are sued on a steam boiler to indicate? answer - The true water level
inside the boiler.
