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Minnesota Special Engineer Boiler License Exam Practice (Latest Update) | Questions with Answers | 100% Correct
Question 1: For the purpose of rating boiler horsepower for
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
Question 2: What is meant by the term low pressure boiler?
Correct answer: Boiler operating on a steam or other vapor
pressure of 15 psi or less or a hot water or other liquid boiler in which the pressure does not exceed 160 psi or doesn't exceed the temperature of 250 degrees
Question 3: A person holding a current state of Minnesota
special engineer license could be in charge of or a shift in what size plant?
Correct answer: High and low pressure boiler does not exceed a
total of 50 horsepower or a shift engineer in a 100 horsepower plant
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Question 4: A special engineer may serve as an apprentice of
what size water liquid or steam vapor?
Correct answer: In any plant regardless of size under the direct
supervision of properly licensed engineer
Question 5: The purpose of a low water cutoff on a steam or hot
water boiler system is what?
Correct answer: To shut off the burner when a low water
condition exists
Question 6: The valve or valves that must relieve all excessive
pressure on a steam or hot water boiler are what?
Correct answer: Safety valve and/or ASME approved safety
relief valve
Question 7: A tri indicator could be found on a?
Correct answer: Hot water boiler
Question 8: A tri indicator would inform the boiler operator of
what?
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Correct answer: The temperature of the water and the pressure
of the water in PSI and the altitude of the water in feet
Question 9: 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
Question 10: 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
Question 11: 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 and pressure gauge
Question 12: What device would only be found on a steam
boiler?
Correct answer: Steam pressure gauge, tricocks and
pressuretrols
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Question 13: An expansion tank or compression tank would be
used with a what?
Correct answer: Hot water boiler
Question 14: What is the purpose of an expansion tank?
Correct answer: To provide expansion and contraction of the
water volume as its temperature varies
Question 15: On a hot water boiler what is the purpose of the
vent valve?
Correct answer: To make sure there is water inside the boiler
and to vent any air trapped
Question 16: If the safety valve or ASME safety relief valve
leaks you would do what?
Correct answer: Have the valve repaired or replaced
Question 17: Tri cocks or gauge cocks are used on a steam
boiler to indicate?