Minnesota Special Engineer Boiler License Exam
2026/2027 | Practice Questions & Comprehensive
Boiler Operator Review
How many way can heat be transferred? - Precise Answer ✔✔Three
(Conduction -- Convection -- Radiation)
How may types of low pressure are there? - Precise Answer ✔✔Three
Boiler and boiler fitting used in the state of Minnesota must be
constructed to what code? - Precise Answer ✔✔A.S.M.E
What controls the starting ans stopping of the burner by sending the
temperature of the water in a hot water boiler? - Precise Answer
✔✔Aqua Stat
When a hydrostatic test of a boiler exceeds the maximum allowed
working pressure each safety valve, if left attached to the boiler, should:
- Precise Answer ✔✔Have its valve disc held to its seat by means of
testing clamp or "gag"
Heat can be transferred in three ways and they are: - Precise Answer
✔✔Conduction --Convection - Radiation
The first sequence in the series of automatic burner control is: - Precise
Answer ✔✔Purging
Can a low water low water condition i a hot water heating type boiler? -
Precise Answer ✔✔Yes, for numerous reasons
Other than a safety relieve valve what other safety device should be
installed on a hot water heating boiler? - Precise Answer ✔✔Low water
, cut off
Each boiler in a battery (pipe together sharing the same common header)
must have: - Precise Answer ✔✔A main stem stop
what removes air from a hot water boiler system? - Precise Answer
✔✔Air Control
In a stem boiler system, the unit that turns be burner on and off based on
steam pressure is the: - Precise Answer ✔✔Pressure Control
If water in the gauge is not visible because of failure of the feed water
supply, what should be done? - Precise Answer ✔✔Shut off the fuel to
the burner and secure the boiler.
What conditions are necessary to cause a furnace explosion? - Precise
Answer ✔✔Accumulation of unburned fuel, oxygen and an ignition
source
The LWCO should be tested: - Precise Answer ✔✔Daily
Gauge pressure plus 14.7 psi is called what? - Precise Answer
✔✔Absolute pressure
The evaporation of 34.5 ponds of water per hour from and at a
temperature of 212 degrees Fahrenheit is defined as: - Precise Answer
✔✔One boiler horsepower
When a safety valve opens and closes rapidly it is referred to as - Precise
Answer ✔✔Chattering
Furnace explosions are caused by a buildup of combustible gases, or
vapors in the combustion chamber, what is the term used to remedy this
2026/2027 | Practice Questions & Comprehensive
Boiler Operator Review
How many way can heat be transferred? - Precise Answer ✔✔Three
(Conduction -- Convection -- Radiation)
How may types of low pressure are there? - Precise Answer ✔✔Three
Boiler and boiler fitting used in the state of Minnesota must be
constructed to what code? - Precise Answer ✔✔A.S.M.E
What controls the starting ans stopping of the burner by sending the
temperature of the water in a hot water boiler? - Precise Answer
✔✔Aqua Stat
When a hydrostatic test of a boiler exceeds the maximum allowed
working pressure each safety valve, if left attached to the boiler, should:
- Precise Answer ✔✔Have its valve disc held to its seat by means of
testing clamp or "gag"
Heat can be transferred in three ways and they are: - Precise Answer
✔✔Conduction --Convection - Radiation
The first sequence in the series of automatic burner control is: - Precise
Answer ✔✔Purging
Can a low water low water condition i a hot water heating type boiler? -
Precise Answer ✔✔Yes, for numerous reasons
Other than a safety relieve valve what other safety device should be
installed on a hot water heating boiler? - Precise Answer ✔✔Low water
, cut off
Each boiler in a battery (pipe together sharing the same common header)
must have: - Precise Answer ✔✔A main stem stop
what removes air from a hot water boiler system? - Precise Answer
✔✔Air Control
In a stem boiler system, the unit that turns be burner on and off based on
steam pressure is the: - Precise Answer ✔✔Pressure Control
If water in the gauge is not visible because of failure of the feed water
supply, what should be done? - Precise Answer ✔✔Shut off the fuel to
the burner and secure the boiler.
What conditions are necessary to cause a furnace explosion? - Precise
Answer ✔✔Accumulation of unburned fuel, oxygen and an ignition
source
The LWCO should be tested: - Precise Answer ✔✔Daily
Gauge pressure plus 14.7 psi is called what? - Precise Answer
✔✔Absolute pressure
The evaporation of 34.5 ponds of water per hour from and at a
temperature of 212 degrees Fahrenheit is defined as: - Precise Answer
✔✔One boiler horsepower
When a safety valve opens and closes rapidly it is referred to as - Precise
Answer ✔✔Chattering
Furnace explosions are caused by a buildup of combustible gases, or
vapors in the combustion chamber, what is the term used to remedy this
