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MINNESOTA SPECIAL ENGINEER BOILER LICENSE PRACTICE EXAM QUESTIONS
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MINNESOTA SPECIAL ENGINEER BOILER LICENSE PRACTICE EXAM QUESTIONS
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MINNESOTA SPECIAL ENGINEER BOILER LICENSE PRACTICE EXAM QUESTIONSFor 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
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