Minnesota Special Engineer Boiler License Exam Prep
(2023/2025 Update) | Questions and Verified
Answers| 100% Correct
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? - ✔✔ANSW✔✔..10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? -
✔✔ANSW✔✔..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)? - ✔✔ANSW✔✔..High and
Low pressure boilers not to exceed a total of 50 boiler
horsepower, or a shift engineer in a 100 horsepower plant.
The low water cut out is one of the most important
electrical/mechanical devices on your boiler. How often
should you test it? - ✔✔ANSW✔✔..Daily
, What device must be located between a hot water boiler
and the expansion tank? - ✔✔ANSW✔✔..A shut off
valve so the expansion can be isolated and drained during
operation of the boiler.
On a hot water boiler, every time the burner operates the
safety relief valve opens. Why? - ✔✔ANSW✔✔..The
expansion tank is water logged, or the isolating valve for
the expansion tank is closed.
An Aquastat is used on a...? - ✔✔ANSW✔✔..Hot water
boiler
To reduce thermal shock on hot water boilers, what
devices are used? - ✔✔ANSW✔✔..Low limit or low fire
hold control, three way valve, run around pump.
On a steam boiler the control named operator will... -
✔✔ANSW✔✔..On pressure decrease: Start. On pressure
increase: Stop.
On a hot water boiler the control called the operator will...
- ✔✔ANSW✔✔..On temperature decrease: Start. On
temperature increase: Stop.
(2023/2025 Update) | Questions and Verified
Answers| 100% Correct
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? - ✔✔ANSW✔✔..10 Sq. Ft. Heating Surface
What is meant by the term "Low Pressure Boiler"? -
✔✔ANSW✔✔..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)? - ✔✔ANSW✔✔..High and
Low pressure boilers not to exceed a total of 50 boiler
horsepower, or a shift engineer in a 100 horsepower plant.
The low water cut out is one of the most important
electrical/mechanical devices on your boiler. How often
should you test it? - ✔✔ANSW✔✔..Daily
, What device must be located between a hot water boiler
and the expansion tank? - ✔✔ANSW✔✔..A shut off
valve so the expansion can be isolated and drained during
operation of the boiler.
On a hot water boiler, every time the burner operates the
safety relief valve opens. Why? - ✔✔ANSW✔✔..The
expansion tank is water logged, or the isolating valve for
the expansion tank is closed.
An Aquastat is used on a...? - ✔✔ANSW✔✔..Hot water
boiler
To reduce thermal shock on hot water boilers, what
devices are used? - ✔✔ANSW✔✔..Low limit or low fire
hold control, three way valve, run around pump.
On a steam boiler the control named operator will... -
✔✔ANSW✔✔..On pressure decrease: Start. On pressure
increase: Stop.
On a hot water boiler the control called the operator will...
- ✔✔ANSW✔✔..On temperature decrease: Start. On
temperature increase: Stop.
