MINNESOTA SPECIAL ENGINEER BOILER LICENSE PRACTICE EXAM
QUESTIONS AND ANSWERS #3
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? -
correct answer 10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - correct 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)? - correct 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? - correct 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? - correct
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? - correct answer Safety valve and/or an ASME approved safety relief valve.
A Tri indicator could be found on a: - correct answer Hot water boiler
A tri indicator would inform the boiler operator of what? - correct 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? - correct 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? - correct answer Steam first then hot water.
Some of the things you could find on a steam boiler (or hot water boiler) are what? -
correct answer Low water cut off, safety valve or safety relief valve, pressure gauge.
What devices would only be found on a steam boiler? - correct answer Steam pressure
gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used in what? - correct answer Hot
water boiler
QUESTIONS AND ANSWERS #3
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? -
correct answer 10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? - correct 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)? - correct 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? - correct 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? - correct
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? - correct answer Safety valve and/or an ASME approved safety relief valve.
A Tri indicator could be found on a: - correct answer Hot water boiler
A tri indicator would inform the boiler operator of what? - correct 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? - correct 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? - correct answer Steam first then hot water.
Some of the things you could find on a steam boiler (or hot water boiler) are what? -
correct answer Low water cut off, safety valve or safety relief valve, pressure gauge.
What devices would only be found on a steam boiler? - correct answer Steam pressure
gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used in what? - correct answer Hot
water boiler
