Minnesota Special Engineer Boiler License Practice
Exam Questions and Answers Verified
100%,,Graded A+,,Guaranteed Pass!
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.
Exam Questions and Answers Verified
100%,,Graded A+,,Guaranteed Pass!
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.
