BOILER LICENSE TEST EXAMINATION PAPER
2026 FULL QUESTIONS AND ANSWERS
VERIFIED STUDY GUIDE FINAL PREP 250
◉ In the boiler room.
Answer: Where should a boiler license be displayed?
◉ One BTU.
Answer: What will raise one pound of water by one degree F
◉ Check water level.
Answer: When entering a steam boiler room what is the first thing
an operator should do?
◉ Above 15 psi, above 160 psi water, and temps above 250°F.
Answer: A high pressure boiler is classified as such when what - ?
◉ A.S.M.E. Approved.
Answer: What type of safety valve is required?
◉ Efficiency.
,Answer: When operating a boiler, what is most important?
◉ Shuts off fuel in case of low water.
Answer: How does a low water fuel cut off (LWCO) protect a boiler?
◉ shut off the burner when a low water condition exists..
Answer: If you cannot determine water level what do you do?
◉ No.
Answer: Can you compress a liquid?
◉ Cast Iron Sectional and Firebox.
Answer: What boilers are low pressure only?
◉ Push nipples and Tie Rods.
Answer: What holds cast iron sections together?
◉ At least as big as the largest incoming wire.
Answer: On electric boilers, how large should the ground wire be?
◉ Baffle.
Answer: Directs flow of combustion gasses, water, and/or steam
, ◉ Passes.
Answer: Amount of times the heat moves through the tubes in a fire
tube boiler
◉ Refractory.
Answer: Hard surface insulation (brick, concrete,...)
◉ Stays.
Answer: Helps keep shape and position of boiler
◉ Tubing.
Answer: Measured by Outside Diameter (OD)
◉ Package Boiler.
Answer: Comes completely assembled with its own feedwater
pumps, fuel system & draft fans
◉ Firetube, Watertube, Cast Iron.
Answer: The 3 basic types of boilers (per ASME) are:
◉ Pressure Controls.
2026 FULL QUESTIONS AND ANSWERS
VERIFIED STUDY GUIDE FINAL PREP 250
◉ In the boiler room.
Answer: Where should a boiler license be displayed?
◉ One BTU.
Answer: What will raise one pound of water by one degree F
◉ Check water level.
Answer: When entering a steam boiler room what is the first thing
an operator should do?
◉ Above 15 psi, above 160 psi water, and temps above 250°F.
Answer: A high pressure boiler is classified as such when what - ?
◉ A.S.M.E. Approved.
Answer: What type of safety valve is required?
◉ Efficiency.
,Answer: When operating a boiler, what is most important?
◉ Shuts off fuel in case of low water.
Answer: How does a low water fuel cut off (LWCO) protect a boiler?
◉ shut off the burner when a low water condition exists..
Answer: If you cannot determine water level what do you do?
◉ No.
Answer: Can you compress a liquid?
◉ Cast Iron Sectional and Firebox.
Answer: What boilers are low pressure only?
◉ Push nipples and Tie Rods.
Answer: What holds cast iron sections together?
◉ At least as big as the largest incoming wire.
Answer: On electric boilers, how large should the ground wire be?
◉ Baffle.
Answer: Directs flow of combustion gasses, water, and/or steam
, ◉ Passes.
Answer: Amount of times the heat moves through the tubes in a fire
tube boiler
◉ Refractory.
Answer: Hard surface insulation (brick, concrete,...)
◉ Stays.
Answer: Helps keep shape and position of boiler
◉ Tubing.
Answer: Measured by Outside Diameter (OD)
◉ Package Boiler.
Answer: Comes completely assembled with its own feedwater
pumps, fuel system & draft fans
◉ Firetube, Watertube, Cast Iron.
Answer: The 3 basic types of boilers (per ASME) are:
◉ Pressure Controls.
