Minnesota Special Engineer Boiler License
Practice Exam Questions Questions and
Correct Answers/ Latest Update / Already
Graded
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?
Ans: 10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"?
Ans: 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)?
Ans: High and Low pressure boilers not to exceed a total of 50
boiler horsepower, or a shift engineer in a 100 horsepo wer
plant.
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Special Engineer may serve as an apprentice of what size water/liquid
or steam/vapor boiler?
Ans: 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?
Ans: 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?
Ans: Safety valve and/or an ASME approved safety relief valve.
A Tri indicator could be found on a:
Ans: Hot water boiler
A tri indicator would inform the boiler operator of what?
Ans: 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?
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