Special Boiler License Practice Exam
Minnesota questions and answers 2026\2027
A+ Grade
How many way can heat be transferred?
- correct answer Three (Conduction -- Convection -- Radiation)
How may types of low pressure are there?
- correct answer Three
Boiler and boiler fitting used in the state of Minnesota must be constructed to what code?
- correct 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?
- correct 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:
- correct 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:
- correct answer Conduction --Convection - Radiation
The first sequence in the series of automatic burner control is:
- correct answer Purging
Can a low water low water condition i a hot water heating type boiler?
- correct answer Yes, for numerous reasons
, Other than a safety relieve valve what other safety device should be installed on a hot water heating
boiler?
- correct answer Low water cut off
Each boiler in a battery (pipe together sharing the same common header) must have:
- correct answer A main stem stop
what removes air from a hot water boiler system?
- correct answer Air Control
In a stem boiler system, the unit that turns be burner on and off based on steam pressure is the:
- correct answer Pressure Control
If water in the gauge is not visible because of failure of the feed water supply, what should be done?
- correct answer Shut off the fuel to the burner and secure the boiler.
What conditions are necessary to cause a furnace explosion?
- correct answer Accumulation of unburned fuel, oxygen and an ignition source
The LWCO should be tested:
- correct answer Daily
Gauge pressure plus 14.7 psi is called what?
- correct 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:
- correct answer One boiler horsepower
When a safety valve opens and closes rapidly it is referred to as
- correct answer Chattering
Minnesota questions and answers 2026\2027
A+ Grade
How many way can heat be transferred?
- correct answer Three (Conduction -- Convection -- Radiation)
How may types of low pressure are there?
- correct answer Three
Boiler and boiler fitting used in the state of Minnesota must be constructed to what code?
- correct 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?
- correct 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:
- correct 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:
- correct answer Conduction --Convection - Radiation
The first sequence in the series of automatic burner control is:
- correct answer Purging
Can a low water low water condition i a hot water heating type boiler?
- correct answer Yes, for numerous reasons
, Other than a safety relieve valve what other safety device should be installed on a hot water heating
boiler?
- correct answer Low water cut off
Each boiler in a battery (pipe together sharing the same common header) must have:
- correct answer A main stem stop
what removes air from a hot water boiler system?
- correct answer Air Control
In a stem boiler system, the unit that turns be burner on and off based on steam pressure is the:
- correct answer Pressure Control
If water in the gauge is not visible because of failure of the feed water supply, what should be done?
- correct answer Shut off the fuel to the burner and secure the boiler.
What conditions are necessary to cause a furnace explosion?
- correct answer Accumulation of unburned fuel, oxygen and an ignition source
The LWCO should be tested:
- correct answer Daily
Gauge pressure plus 14.7 psi is called what?
- correct 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:
- correct answer One boiler horsepower
When a safety valve opens and closes rapidly it is referred to as
- correct answer Chattering
