BOILER FUNDAMENTALS ACTUAL EXAM
QUESTIONS AND COMPLETE STUDY GUIDE
2026
▶ Chattering of a safety valve would direct the operator to adjust what?
Answer: The blowdown
▶ When measuring both a vacuum and pressure what kind of gauge is
required? Answer: Compound gauge
▶ Which pressure control setting turns on the burner? Answer: Cut-in
pressure
▶ Which pressure setting will cut off the burner? Answer: Cut-out pressure
▶ If a fusible plug is found to have the center melted out, what temperature
was reached? Answer: 450 degrees F
▶ When a boiler is switched from low fire to high fire what are the burners
now doing? Answer: Burning the maximum amount of fuel for a given unit
of time
▶ If durning a maintenance procedure a technician inspects a huddling
chamber, what is he inspecting? Answer: A safety valve
▶ What factors go into the MAWP? Answer: Design and construction
▶ If an operator is sent to inspect a modulating pressure control where on
the boiler would he be looking? Answer: on the highest part of the boiler
▶ After a boiler fault the operator should start the boiler in low fire to
prevent what in the steam piping? Answer: Hammering
▶ The measure of heat in the Imperial System is in what units? Answer:
BUTs
, ▶ How heat is represented if on pound of water is raised one degree in an
hour? Answer: 1 BTU
▶ All fuels have heating value, in what units are they stated? Answer:
BTUs per lbs or per gallon
▶ To regulate burner combustion, what would the operator adjust? Answer:
Primary air
▶ Air needed for complete combustion in a fossil fuel boiler is? Answer:
Primary air
▶ Air supplied to the burners that _______ combustion is primary air.
Answer: Controls or Regulates
▶ Heating value is expressed in BTUs per _______ or pound. ? Answer:
Gallon
▶ Complete combustion is the burning of all supplied _______ with the
smallest amount of air. Answer: Fuel
▶ British thermal unit (BTU) is a measurement of the quality of?? Answer:
Heat value
▶ Water hammer is the banging inside of pipes that is the result of water
and steam mixing and can result in? Answer: Rupture
▶ Modulating pressure control devices are found at the ______ of the
steam side of the boiler? Answer: Highest point
▶ Maximum allowable working pressure (MAWP) is the industry term used
to determine by design and construction the rating of the boiler as
described by? Answer: ASME - American Standard Mechanical Engineers
▶ What is the part of the safety valve that increases the area of the valve
disk, thus increasing the total upward force required for the valve to open?
Answer: Huddling Chamber
QUESTIONS AND COMPLETE STUDY GUIDE
2026
▶ Chattering of a safety valve would direct the operator to adjust what?
Answer: The blowdown
▶ When measuring both a vacuum and pressure what kind of gauge is
required? Answer: Compound gauge
▶ Which pressure control setting turns on the burner? Answer: Cut-in
pressure
▶ Which pressure setting will cut off the burner? Answer: Cut-out pressure
▶ If a fusible plug is found to have the center melted out, what temperature
was reached? Answer: 450 degrees F
▶ When a boiler is switched from low fire to high fire what are the burners
now doing? Answer: Burning the maximum amount of fuel for a given unit
of time
▶ If durning a maintenance procedure a technician inspects a huddling
chamber, what is he inspecting? Answer: A safety valve
▶ What factors go into the MAWP? Answer: Design and construction
▶ If an operator is sent to inspect a modulating pressure control where on
the boiler would he be looking? Answer: on the highest part of the boiler
▶ After a boiler fault the operator should start the boiler in low fire to
prevent what in the steam piping? Answer: Hammering
▶ The measure of heat in the Imperial System is in what units? Answer:
BUTs
, ▶ How heat is represented if on pound of water is raised one degree in an
hour? Answer: 1 BTU
▶ All fuels have heating value, in what units are they stated? Answer:
BTUs per lbs or per gallon
▶ To regulate burner combustion, what would the operator adjust? Answer:
Primary air
▶ Air needed for complete combustion in a fossil fuel boiler is? Answer:
Primary air
▶ Air supplied to the burners that _______ combustion is primary air.
Answer: Controls or Regulates
▶ Heating value is expressed in BTUs per _______ or pound. ? Answer:
Gallon
▶ Complete combustion is the burning of all supplied _______ with the
smallest amount of air. Answer: Fuel
▶ British thermal unit (BTU) is a measurement of the quality of?? Answer:
Heat value
▶ Water hammer is the banging inside of pipes that is the result of water
and steam mixing and can result in? Answer: Rupture
▶ Modulating pressure control devices are found at the ______ of the
steam side of the boiler? Answer: Highest point
▶ Maximum allowable working pressure (MAWP) is the industry term used
to determine by design and construction the rating of the boiler as
described by? Answer: ASME - American Standard Mechanical Engineers
▶ What is the part of the safety valve that increases the area of the valve
disk, thus increasing the total upward force required for the valve to open?
Answer: Huddling Chamber
