Minnesota Special Engineer Boiler License
Exam Practice Questions and Verified
Answers| 100% Correct (2023/2024 Latest
Update)
QUESTION
The purpose of the expansion tank is to?
Answer:
Provide for expansion and contraction of the water volume as its temperature varies
QUESTION
On a hot water boiler, what is the purpose of the vent valve?
Answer:
To make sure there is water in the boiler and to vent out any trapped air
QUESTION
If the safety valve or A.S.M.E. safety relief valve leaks what would you do?
Answer:
Have the valve repaired or replaced
QUESTION
Tri-cocks or gauge cocks are used on a steam boiler to indicate?
Answer:
The true water level inside the boiler
,QUESTION
On a steam or hot water boiler, the safety valve or safety relief valve could be tested by?
Answer:
Lifting the lever on the valve or raising the pressure until they operate
QUESTION
Before starting a steam or hot water boiler what should you check for?
Answer:
Water in the boiler
QUESTION
Bottom blow down valves are provided for both steam and hot water, true or false?
Answer:
True
QUESTION
Safety valves or SRV's should be manually tested at least?
Answer:
Quarterly, every 90 days
QUESTION
The low water cut off is one of the most important electrical/mechanical devices on your boiler,
how often should it be tested?
Answer:
Monthly
,QUESTION
What device must be located between a hot water boiler and the expansion tank?
Answer:
A shut off valve so the expansion tank can be isolated and drained during operation of the boiler
QUESTION
On a hot water boiler, every time the burner operates the SRV opens, why?
Answer:
The expansion tank is water logged or the isolating valve for the expansion tank is closed
QUESTION
An aquastat is used on which type of boiler?
Answer:
Hot water boiler
QUESTION
To reduce thermal shock on hot water boilers, what devices are used?
Answer:
Low limit/low fire hold controls, a three way valve, and a run around pump
QUESTION
On a steam boiler, the control named the operator will
Answer:
on pressure decrease=start, on pressure increase=stop
, QUESTION
On a hot water boiler, the control called the operator will?
Answer:
On temperature decrease=start, on temperature increase=stop
QUESTION
On a steam boiler, what is a siphon or pig tail used for?
Answer:
To protect the steam gauge from too high of a temperature
QUESTION
What is one reason causing the expansion tank to fill with water?
Answer:
Air leaks out by the gauge glass fittings
QUESTION
What would you do if you came into the boiler room and found no water in the boiler?
Answer:
Shut off the burner and allow the burner to cool
QUESTION
The most dangerous action the boiler operator can take when a dangerously low water condition
exists is to?
Answer:
Add water to the boiler
Exam Practice Questions and Verified
Answers| 100% Correct (2023/2024 Latest
Update)
QUESTION
The purpose of the expansion tank is to?
Answer:
Provide for expansion and contraction of the water volume as its temperature varies
QUESTION
On a hot water boiler, what is the purpose of the vent valve?
Answer:
To make sure there is water in the boiler and to vent out any trapped air
QUESTION
If the safety valve or A.S.M.E. safety relief valve leaks what would you do?
Answer:
Have the valve repaired or replaced
QUESTION
Tri-cocks or gauge cocks are used on a steam boiler to indicate?
Answer:
The true water level inside the boiler
,QUESTION
On a steam or hot water boiler, the safety valve or safety relief valve could be tested by?
Answer:
Lifting the lever on the valve or raising the pressure until they operate
QUESTION
Before starting a steam or hot water boiler what should you check for?
Answer:
Water in the boiler
QUESTION
Bottom blow down valves are provided for both steam and hot water, true or false?
Answer:
True
QUESTION
Safety valves or SRV's should be manually tested at least?
Answer:
Quarterly, every 90 days
QUESTION
The low water cut off is one of the most important electrical/mechanical devices on your boiler,
how often should it be tested?
Answer:
Monthly
,QUESTION
What device must be located between a hot water boiler and the expansion tank?
Answer:
A shut off valve so the expansion tank can be isolated and drained during operation of the boiler
QUESTION
On a hot water boiler, every time the burner operates the SRV opens, why?
Answer:
The expansion tank is water logged or the isolating valve for the expansion tank is closed
QUESTION
An aquastat is used on which type of boiler?
Answer:
Hot water boiler
QUESTION
To reduce thermal shock on hot water boilers, what devices are used?
Answer:
Low limit/low fire hold controls, a three way valve, and a run around pump
QUESTION
On a steam boiler, the control named the operator will
Answer:
on pressure decrease=start, on pressure increase=stop
, QUESTION
On a hot water boiler, the control called the operator will?
Answer:
On temperature decrease=start, on temperature increase=stop
QUESTION
On a steam boiler, what is a siphon or pig tail used for?
Answer:
To protect the steam gauge from too high of a temperature
QUESTION
What is one reason causing the expansion tank to fill with water?
Answer:
Air leaks out by the gauge glass fittings
QUESTION
What would you do if you came into the boiler room and found no water in the boiler?
Answer:
Shut off the burner and allow the burner to cool
QUESTION
The most dangerous action the boiler operator can take when a dangerously low water condition
exists is to?
Answer:
Add water to the boiler
