MN Special Boilers License Prep Test 2024 LATEST UPDATE
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Course
DC Boilers
Institution
DC Boilers
Special (License Grade) - ANSWER Work in any type of plant
Grade C (License Grade) - ANSWER Can operate low-pressure steam or hot water (no steam engines/turbines)
Grade B (License Grade) - ANSWER Can operate high-pressure or low-pressure steam or hot water (no steam engines/turbines)
Grad...
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 - ANSWER Steam boilers have __________ ___________ to control burner (turn
burner on and off)
Aquastat - ANSWER Hydronic systems have a(n) ______________ to turn the burner on or off
Low water cut off - ANSWER What prevents thermal shock in a hydronic system?
Cast iron section boiler - ANSWER Inexpensive
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