Boilers Final Questions and
Verified Correct Answers
10 sq. ft. heating surface or 67,000 but input - correct answer ✔✔For the purpose of rating
boiler horsepower for an Engineer's License only, what should be equivalent to one boiler
horsepower on a boiler?
Safety valve - correct answer ✔✔What is the most important valve on the boiler?
Boilers operating at a steam or other vapor pressure of 15 PSIG or less or a water or other liquid
boiler in which the pressure does not exceed 160 PSIG or a temperature of 250° - correct
answer ✔✔What is meant by the term "low pressure boiler?"
16 years of with an approved course or 18 years old - correct answer ✔✔What is the minimum
age requirement to take a special engine's license?
High and Low pressure boilers not to exceed a total of 50 boiler horsepower - correct answer
✔✔A person holding a current state of Minnesota Special Engineer License could be in charge
of?
Allow for expansion and contraction of the water volume as the temperature varies - correct
answer ✔✔On the hot water boiler, the expansion tank/compression tank is used to:
100 boiler horsepower - correct answer ✔✔A Special Engineer could be a shift engineer in a
plant of not more than
, 50 questions, 70% correct - correct answer ✔✔How many questions are on the special engineer
exam and what is the minimum passing score?
Any plant regardless of size under the direct supervision of the properly licensed engineer -
correct answer ✔✔A special engineer may serve as an apprentice in what size water or other
liquid or steam or other vapor boiler?
Every 24 months/2 years - correct answer ✔✔How often must a boiler license be renewed?
Damper - correct answer ✔✔What boiler accessory could be installed in the breeching or stack
to regulate draft?
Shut off the burner when a low water condition exists - correct answer ✔✔The purpose of the
low water cut out on a steam or hot water boiler is to?
Refill the gauge glass moderately quickly - correct answer ✔✔When blowing down the water
column/guage glass, the water should?
Safety valve and/or safety relief valves ASME approved - correct answer ✔✔The valve or valves
that must relieve all excess pressure on a steam or hot water boiler are?
Air and condensate - correct answer ✔✔All steam traps will prevent steam from passing
through them, but will allow what to pass through them?
Flame failure, shuts off full system if pilot/main frame is not detected - correct answer ✔✔What
duty does the electric eye (flame scanner) perform on an oil or gas burner?
Reduces the turbulence of boiler water to provide an accurate water level - correct answer
✔✔The water column is a boiler fitting that:
Verified Correct Answers
10 sq. ft. heating surface or 67,000 but input - correct answer ✔✔For the purpose of rating
boiler horsepower for an Engineer's License only, what should be equivalent to one boiler
horsepower on a boiler?
Safety valve - correct answer ✔✔What is the most important valve on the boiler?
Boilers operating at a steam or other vapor pressure of 15 PSIG or less or a water or other liquid
boiler in which the pressure does not exceed 160 PSIG or a temperature of 250° - correct
answer ✔✔What is meant by the term "low pressure boiler?"
16 years of with an approved course or 18 years old - correct answer ✔✔What is the minimum
age requirement to take a special engine's license?
High and Low pressure boilers not to exceed a total of 50 boiler horsepower - correct answer
✔✔A person holding a current state of Minnesota Special Engineer License could be in charge
of?
Allow for expansion and contraction of the water volume as the temperature varies - correct
answer ✔✔On the hot water boiler, the expansion tank/compression tank is used to:
100 boiler horsepower - correct answer ✔✔A Special Engineer could be a shift engineer in a
plant of not more than
, 50 questions, 70% correct - correct answer ✔✔How many questions are on the special engineer
exam and what is the minimum passing score?
Any plant regardless of size under the direct supervision of the properly licensed engineer -
correct answer ✔✔A special engineer may serve as an apprentice in what size water or other
liquid or steam or other vapor boiler?
Every 24 months/2 years - correct answer ✔✔How often must a boiler license be renewed?
Damper - correct answer ✔✔What boiler accessory could be installed in the breeching or stack
to regulate draft?
Shut off the burner when a low water condition exists - correct answer ✔✔The purpose of the
low water cut out on a steam or hot water boiler is to?
Refill the gauge glass moderately quickly - correct answer ✔✔When blowing down the water
column/guage glass, the water should?
Safety valve and/or safety relief valves ASME approved - correct answer ✔✔The valve or valves
that must relieve all excess pressure on a steam or hot water boiler are?
Air and condensate - correct answer ✔✔All steam traps will prevent steam from passing
through them, but will allow what to pass through them?
Flame failure, shuts off full system if pilot/main frame is not detected - correct answer ✔✔What
duty does the electric eye (flame scanner) perform on an oil or gas burner?
Reduces the turbulence of boiler water to provide an accurate water level - correct answer
✔✔The water column is a boiler fitting that:
