Exam-Prep| Questions with Verified i,- i,- i,- i,-
Solutions | Latest 2025/2026 Update. i,- i,- i,- i,-
Where should a boiler license be displayed?
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room
What will raise one pound of water by one degree F
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When entering a steam boiler room what is the first thing an
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operator should do? Check water level
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A high pressure boiler is classified as such when what - ?
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Above 15 psi, above 160 psi water, and temps above 250°F
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What type of safety valve is required?
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When operating a boiler, what is most important?
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How does a low water fuel cut off (LWCO) protect a boiler?
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Shuts off fuel in case of low water
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,If you cannot determine water level what do you do?
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the burner when a low water condition exists.
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Can you compress a liquid?
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What boilers are low pressure only?
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Firebox
What holds cast iron sections together?
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Rods
On electric boilers, how large should the ground wire be?
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least as big as the largest incoming wire
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Directs flow of combustion gasses, water, and/or steam
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Amount of times the heat moves through the tubes in a fire tube
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boiler Passes i,-i,- i,-
Hard surface insulation (brick, concrete,...)
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, Helps keep shape and position of boiler
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Measured by Outside Diameter (OD) i,- i,- i,- i,- i,-i,- i,- Tubing
Comes completely assembled with its own feedwater pumps, fuel
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system & draft fans Package Boiler
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The 3 basic types of boilers (per ASME) are:
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Watertube, Cast Iron i,- i,-
Steam boilers have __________ ___________ to control burner (turn
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burner on and off) i,-Pressure Controls
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Work in any type of plant
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Can operate low-pressure steam or hot water (no steam
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engines/turbines) Grade C (License Grade) i,-i,- i,- i,- i,- i,-
Can operate high-pressure or low-pressure steam or hot water
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(no steam engines/turbines)
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