Minnesota Special Engineer Boiler License | Practice Exam Questions & Safe Boiler Operation Fundamentals
Special Engineer may serve as an apprentice of what In any plant regardless of size under the direct supervision of a properly
size water/liquid or steam/vapor boiler? licensed engineer.
The purpose of low water cut out on a steam or hot Shut off the burner when a low water condition exists.
water boiler is to what?
The valve or valves that must relieve all excess pressure Safety valve and/or an ASME approved safety relief valve.
on a steam or hot water boiler are what?
A Tri indicator could be found on a: Hot water boiler
A tri indicator would inform the boiler operator of The TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the
what? ALTITUDE of water in feet.
What is the destructive force in a steam or hot water The instant release of energy stored in the water as heat.
boiler explosion?
An ASME approved safety relieve calve used on a hot Steam first then hot water.
water boiler is tested at the factory on what?
Some of the things you could find on a steam boiler (or Low water cut off, safety valve or safety relief valve, pressure gauge.
hot water boiler) are what?
What devices would only be found on a steam boiler? Steam pressure gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used Hot water boiler
in what?
What is the purpose of the expansion tank? To provide for expansion and contraction of the water volume as its
temperature varies.
On a hot water boiler, what is the purpose of the vent To make sure there is water inside the boiler and to vent any trapped air.
valve?
If the safety valve or ASME safety relief valve leaks you Have the valve repaired or replaced.
would do what?
,Minnesota Special Engineer Boiler License | Practice Exam Questions & Safe Boiler Operation Fundamentals
Tri cocks or gauge cocks are sued on a steam boiler to The true water level inside the boiler.
indicate?
On a steam or hot water boiler, the safety valve or When the boiler is running lifting the lever on the valve or raising the pressure
safety relief valve could be tested by? until they operate.
Before starting a steam or hot water boiler you should Water in the boiler.
check for what?
True or False: Bottom blow down valves are used for True
both steam and hot water.
Safety valves or safety relief valves should be manually Monthly
tested at least...?
The low water cut out is one of the most important Daily
electrical/mechanical devices on your boiler. How
often should you test it?
What device must be located between a hot water A shut off valve so the expansion can be isolated and drained during operation
boiler and the expansion tank? of the boiler.
On a hot water boiler, every time the burner operates The expansion tank is water logged, or the isolating valve for the expansion
the safety relief valve opens. Why? tank is closed.
An Aquastat is used on a...? Hot water boiler
To reduce thermal shock on hot water boilers, what Low limit or low fire hold control, three way valve, run around pump.
devices are used?
On a steam boiler the control named operator will... On pressure decrease: Start. On pressure increase: Stop.
On a hot water boiler the control called the operator On temperature decrease: Start. On temperature increase: Stop.
will...
On a steam boiler what is a siphon or pigtail used for? To protect the steam gauge from too high of temperature.
What is one reason causing the expansion tank to fill Air leaks from the gauge glass fitting.
with water?
, Minnesota Special Engineer Boiler License | Practice Exam Questions & Safe Boiler Operation Fundamentals
What would you do if you cam into a boiler room and Shut off the burner and allow boiler to cool.
found no water in the boiler?
What is the purpose of the bottom blow down on a To remove sludge and sediment and to drain the boiler.
steam boiler?
When blowing down the water column the water Refill the gauge glass quickly.
should do what?
When doing the annual boiler inspection the boiler Water and fire side cleaned and inspection ports open.
should...
Purging is part of what cycle? Firing cycle
All steam traps will prevent steam from passing through Dirt, air, and condensate.
them but will allow what to pass through them?
How do we know if we are using and approved safety A spring loaded direct acting safety valve or safety relief valve.
valve for a steam boiler or a safety relief valve for a hot
water boiler?
Before testing a low water fuel cut-out what must be The burner must be on.
done?
Heat can be transferred in how many ways? Three.
Aqua stats work by sensing: Temperature.
Name the different ways heat can be transferred and Radiation, Conduction, Convection
give a definition of each way.
How many types of boilers are there? Three: Fire tube, Water tube, Cast iron sectional
What type of boiler can be made larger? Cast Iron sectional
What type of boiler has the water surrounding the Fire tube
tubes?
What type of boiler has the water running through the Water tube
tubes?
Special Engineer may serve as an apprentice of what In any plant regardless of size under the direct supervision of a properly
size water/liquid or steam/vapor boiler? licensed engineer.
The purpose of low water cut out on a steam or hot Shut off the burner when a low water condition exists.
water boiler is to what?
The valve or valves that must relieve all excess pressure Safety valve and/or an ASME approved safety relief valve.
on a steam or hot water boiler are what?
A Tri indicator could be found on a: Hot water boiler
A tri indicator would inform the boiler operator of The TEMPERATURE of the water, the PRESSURE of the water in PSIG, and the
what? ALTITUDE of water in feet.
What is the destructive force in a steam or hot water The instant release of energy stored in the water as heat.
boiler explosion?
An ASME approved safety relieve calve used on a hot Steam first then hot water.
water boiler is tested at the factory on what?
Some of the things you could find on a steam boiler (or Low water cut off, safety valve or safety relief valve, pressure gauge.
hot water boiler) are what?
What devices would only be found on a steam boiler? Steam pressure gauge, tricocks, Pressuretrols
An expansion tank or compression tank would be used Hot water boiler
in what?
What is the purpose of the expansion tank? To provide for expansion and contraction of the water volume as its
temperature varies.
On a hot water boiler, what is the purpose of the vent To make sure there is water inside the boiler and to vent any trapped air.
valve?
If the safety valve or ASME safety relief valve leaks you Have the valve repaired or replaced.
would do what?
,Minnesota Special Engineer Boiler License | Practice Exam Questions & Safe Boiler Operation Fundamentals
Tri cocks or gauge cocks are sued on a steam boiler to The true water level inside the boiler.
indicate?
On a steam or hot water boiler, the safety valve or When the boiler is running lifting the lever on the valve or raising the pressure
safety relief valve could be tested by? until they operate.
Before starting a steam or hot water boiler you should Water in the boiler.
check for what?
True or False: Bottom blow down valves are used for True
both steam and hot water.
Safety valves or safety relief valves should be manually Monthly
tested at least...?
The low water cut out is one of the most important Daily
electrical/mechanical devices on your boiler. How
often should you test it?
What device must be located between a hot water A shut off valve so the expansion can be isolated and drained during operation
boiler and the expansion tank? of the boiler.
On a hot water boiler, every time the burner operates The expansion tank is water logged, or the isolating valve for the expansion
the safety relief valve opens. Why? tank is closed.
An Aquastat is used on a...? Hot water boiler
To reduce thermal shock on hot water boilers, what Low limit or low fire hold control, three way valve, run around pump.
devices are used?
On a steam boiler the control named operator will... On pressure decrease: Start. On pressure increase: Stop.
On a hot water boiler the control called the operator On temperature decrease: Start. On temperature increase: Stop.
will...
On a steam boiler what is a siphon or pigtail used for? To protect the steam gauge from too high of temperature.
What is one reason causing the expansion tank to fill Air leaks from the gauge glass fitting.
with water?
, Minnesota Special Engineer Boiler License | Practice Exam Questions & Safe Boiler Operation Fundamentals
What would you do if you cam into a boiler room and Shut off the burner and allow boiler to cool.
found no water in the boiler?
What is the purpose of the bottom blow down on a To remove sludge and sediment and to drain the boiler.
steam boiler?
When blowing down the water column the water Refill the gauge glass quickly.
should do what?
When doing the annual boiler inspection the boiler Water and fire side cleaned and inspection ports open.
should...
Purging is part of what cycle? Firing cycle
All steam traps will prevent steam from passing through Dirt, air, and condensate.
them but will allow what to pass through them?
How do we know if we are using and approved safety A spring loaded direct acting safety valve or safety relief valve.
valve for a steam boiler or a safety relief valve for a hot
water boiler?
Before testing a low water fuel cut-out what must be The burner must be on.
done?
Heat can be transferred in how many ways? Three.
Aqua stats work by sensing: Temperature.
Name the different ways heat can be transferred and Radiation, Conduction, Convection
give a definition of each way.
How many types of boilers are there? Three: Fire tube, Water tube, Cast iron sectional
What type of boiler can be made larger? Cast Iron sectional
What type of boiler has the water surrounding the Fire tube
tubes?
What type of boiler has the water running through the Water tube
tubes?
