MINNESOTA SPECIAL BOILER LICENSE EXAM 2025 (
QUESTIONS AND WELL DETAILED ANSWERS) ||
LATEST VERSION (BRAND NEW!!!)
•
How may types of low pressure are there? -CORRECT ANSWER Three
How many way can heat be transferred? -CORRECT ANSWER Three (Conduction --
Convection -- Radiation)
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
Furnace explosions are caused by a buildup of combustible gases, or vapors in the
combustion chamber, what is the term used to remedy this condition? -CORRECT
ANSWER Purging
Why is a pigtail or siphon required in steam pressure gauge lines? -CORRECT
ANSWER to protect the gauge from a high temperature.
In a stem boiler system, what is the term used for replacing the water that has been lost
by blowing down the boiler through leaks in the system? -CORRECT ANSWER A make
up water
On steam boiler system, why are bottom blow down valves installed at the lowest point
of the waterside of boilers? -CORRECT ANSWER To remove sludge and sediment.
Boiler heating is defining as : -CORRECT ANSWER Water on one side hot gases on
the other side.
In a fire tube boiler, the water -CORRECT ANSWER Surrounds the tubes
When the bottom blow down valves are used on a steam boiler, what valve located
closet to the boiler shell? -CORRECT ANSWER The quick opening valve
What is the function of an automatic city water feeder on a low pressure boiler? -
CORRECT ANSWER To control water to the feed water tank
The purpose of a safety valve on a steam boiler is to: -CORRECT ANSWER To prevent
the boiler from exceeding its MAWP
QUESTIONS AND WELL DETAILED ANSWERS) ||
LATEST VERSION (BRAND NEW!!!)
•
How may types of low pressure are there? -CORRECT ANSWER Three
How many way can heat be transferred? -CORRECT ANSWER Three (Conduction --
Convection -- Radiation)
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
Furnace explosions are caused by a buildup of combustible gases, or vapors in the
combustion chamber, what is the term used to remedy this condition? -CORRECT
ANSWER Purging
Why is a pigtail or siphon required in steam pressure gauge lines? -CORRECT
ANSWER to protect the gauge from a high temperature.
In a stem boiler system, what is the term used for replacing the water that has been lost
by blowing down the boiler through leaks in the system? -CORRECT ANSWER A make
up water
On steam boiler system, why are bottom blow down valves installed at the lowest point
of the waterside of boilers? -CORRECT ANSWER To remove sludge and sediment.
Boiler heating is defining as : -CORRECT ANSWER Water on one side hot gases on
the other side.
In a fire tube boiler, the water -CORRECT ANSWER Surrounds the tubes
When the bottom blow down valves are used on a steam boiler, what valve located
closet to the boiler shell? -CORRECT ANSWER The quick opening valve
What is the function of an automatic city water feeder on a low pressure boiler? -
CORRECT ANSWER To control water to the feed water tank
The purpose of a safety valve on a steam boiler is to: -CORRECT ANSWER To prevent
the boiler from exceeding its MAWP
