BOILER LICENSE PRACTICE EXAM
QUESTIONS WITH CORRECT
ANSWERS!!
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? - ANSWER10 Sq. Ft. Heating Surface
The purpose of low water cut out on a steam or hot water boiler is to what? -
ANSWERShut 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? - ANSWERSafety valve and/or an ASME approved safety relief
valve.
A Tri indicator could be found on a: - ANSWERHot water boiler
A tri indicator would inform the boiler operator of what? - ANSWERThe
TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the
ALTITUDE of water in feet.
What is meant by the term "Low Pressure Boiler"? - ANSWERBoilers 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)? - ANSWERHigh 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? - ANSWERIn any plant regardless of size under the direct
supervision of a properly licensed engineer.
What is the destructive force in a steam or hot water boiler explosion? -
ANSWERThe 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? - ANSWERSteam first then hot water.
Some of the things you could find on a steam boiler (or hot water boiler) are what? -
ANSWERLow water cut off, safety valve or safety relief valve, pressure gauge.