Boiler License Study guides, Class notes & Summaries
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Boiler License Test Questions with Correct Answers
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Boiler License Test 
Questions with 
Correct Answers 
Natural draft is produced by? - Answer-difference in temperature outside chimney from 
inside chimney 
If a draft fan is located between the boiler and chimney, what type of draft system is it? - 
Answer-Induced draft 
boiler fittings are important for: - Answer-safety only 
thermostatic traps remove air and cool condensate: true or false - Answer-True 
The main purpose of testing a safety value is to: - Answer-make sure valve operates 
fr...
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Boiler License Low Pressure Exam Questions with Correct Answers
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Boiler License Low 
Pressure Exam 
Questions with 
Correct Answers 
A welded repair is allowed on the pressure retaining area of a boiler or pressure vessel - 
Answer-True 
An OS&Y valve offers the least resistance to flow - Answer-True 
What chemical prevents pitting - Answer-Sodium Sulfite 
A rotary cup burner atomizes fuel - Answer-by means of a spinning cup/high velocity air 
Retubed or new boilers are cleaned with - Answer-Alkaline Detergent 
Where does fuel atomize - Answer-At the burne...
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Boiler License Exam Questions with All Correct Answers
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Boiler License Exam Questions 
with All Correct Answers 
When applying the 90% rule to the output of 500 HP, its output would be - Answer15525 pph 
A high pressure boiler can be used in a low pressure situation: - Answer-sometimes 
It takes BLANK BTUs to raise 5 pounds of water from 200 to 212 degrees F - Answer60 
Minnesota Operators license are renewed every - Answer-2 years 
The circumference of a circle with a radius of 3 inches is - Answer-18.84 inches 
For Minnesota Operators licensing ...
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Boiler license Exam Questions and Correct Answers
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Boiler license Exam 
Questions and 
Correct Answers 
The primary purpose of establishing plant safety rules is to: - Answer-protect workers 
and equipment 
How are the sections of a cast-iron boiler connected? - Answer-push nipples and bolts 
Cast-iron boilers are built for what type of draft firing? - Answer-mechanical forced 
and/or induced 
What is the maximum pressure of a low pressure steam boiler? - Answer-15 psi 
What is the maximum temperature and pressure of a low pressure hot water ...
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Boiler License Test with complete solutions
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Natural draft is produced by? - answer; difference in temperature outside chimney from inside chimney 
 
If a draft fan is located between the boiler and chimney, what type of draft system is it? - answer; Induced draft 
 
boiler fittings are important for: - answer; safety only 
 
thermostatic traps remove air and cool condensate: true or false - answer; True 
 
The main purpose of testing a safety value is to: - answer; make sure valve operates freely 
 
when testing a safety valve by hand, yo...
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MN Boiler License Exam Questions and Answers All Correct
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MN Boiler License Exam 
Questions and Answers All 
Correct 
 
what are the conditions necessary for good combustion? 
a) low sulfur content 
b) Thermal, thermocoupler, tubular 
c) turbulence, temperature, time 3T's - Answer-c) turbulence, temperature, time 3T's 
why is secondary air necessary in hand fired boilers? 
a) Necessary to burn the combustible gases 
b) if primary air should fail 
c) used only if sulfur content is high - Answer-a) Necessary to burn the combustible 
gases 
when pressur...
-
Boiler License Test Questions with Correct Answers
- Exam (elaborations) • 5 pages • 2024
-
- $8.49
- + learn more
Boiler License Test 
Questions with 
Correct Answers 
 
Natural draft is produced by? - Answer-difference in temperature outside chimney from 
inside chimney 
If a draft fan is located between the boiler and chimney, what type of draft system is it? - 
Answer-Induced draft 
boiler fittings are important for: - Answer-safety only 
thermostatic traps remove air and cool condensate: true or false - Answer-True 
The main purpose of testing a safety value is to: - Answer-make sure valve operates 
fre...
-
Boiler License Exam Questions with All Correct Answers
- Exam (elaborations) • 9 pages • 2024
-
- $7.99
- + learn more
Boiler License Exam Questions 
with All Correct Answers 
 
When applying the 90% rule to the output of 500 HP, its output would be - Answer15525 pph 
A high pressure boiler can be used in a low pressure situation: - Answer-sometimes 
It takes BLANK BTUs to raise 5 pounds of water from 200 to 212 degrees F - Answer60 
Minnesota Operators license are renewed every - Answer-2 years 
The circumference of a circle with a radius of 3 inches is - Answer-18.84 inches 
For Minnesota Operators licensing p...
-
MN Boiler License 2023 Exam Questions with Correct Answers
- Exam (elaborations) • 16 pages • 2024
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MN Boiler License 
2023 Exam 
Questions with 
Correct Answers 
 
What is the maximum boiler horsepower you may take charge of on a chief engineer's 
license? - Answer-Unlimited 
A 1st class engineer may take charge of a boiler plant not to exceed - Answer-500 
Boiler HorsePower 
If you were to fail a chief engineer's exam, how long must you wait before you would be 
allowed to take the test again - Answer-30 Days 
What should be displayed in the boiler room? - Answer-Engineer's License and 
E...
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MN Boiler license 2023 Exam Questions with Complete Solutions
- Exam (elaborations) • 5 pages • 2024
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MN Boiler license 2023 Exam 
Questions with Complete 
Solutions 
 
What is the unit called that controls starting and stopping of the burner by sensing 
temperature of water in a hot water boiler? - Answer-Aquastat 
What controls the temperature of the water in a hot water boiler system? - AnswerAquastat or remote temperature monitoring system 
What safety devices should be installed on a hot water heating boiler? - Answer-Code 
safety valve(s) 
Low water fuel cutoff 
What removes air from a hot...
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