MN Special Engineers Practice Exam questions and answers
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Course
MN Boiler License
Institution
MN Boiler License
MN Special Engineers Practice Examfor the purpose of rating boiler horsepower for an Engineers licence 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?...
MN Special Engineers Practice Exam
for the purpose of rating boiler horsepower for an Engineers licence 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 15 psig. or less, or a hot water or other liquid boiler in which the pressure does not exceed 160 psig. Or a temperature of 250 f°.
A person holding a current state of Minnesota Special Engineers Licence could be in charge of or a shift engineer in what size plants(s)? - correct answer High and low pressure boiler not to exceed a total of 50
horsepower, or a shift engineer in a 100 Horsepower plant.
Special Engineer may serve as apprentice of what size water/liquid or steam/vapor boiler? - correct answer In any plant regardless of size under the direct supervision of the properly licensed engineer.
the purpose of the 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 relive 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 Steam boiler.
A Tri indicator would inform the boiler operator of what? - correct answer The AMOUNT of water, the LEVEL of water, and if it is LOW on water.
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 relief valve 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 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 whit a what? - correct answer Hot water boiler.
What is the purpose of the expansion tank? - correct 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? - correct answer To vent dirty water.
if the safety valve or ASME safety relief valve leaks, you would do what? - correct answer Have the valve repaired or replaced.
Tricocks or gauge cocks are used on a steam boiler to indicate? - correct answer The tru water level inside the boiler.
On a steam or hot water boiler, the safety valve or safety relief valve could be tested by? - correct answer Increase the temperature until they operate.
Before starting a steam or hot water boiler you should check for what? - correct answer Water in the boiler.
Bottom blow down valves are used for both steam and hot water - correct answer False.
Safety valves or safety relief valves should be manually tested at least: - correct answer Monthly.
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