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Boiler & Steam Basics

Horizontales
Stress imposed on boiler metal by a sudden, drastic change in temperature (2 words)
Water used to replace steam or condensate that is lost from a steam system
Heat in water between 32 degrees F. and the boiling temperature
Any material that will flow
Removes condensate and air from a steam distribution system (2 words)
Boiler that has hot flue gases passing through the tubes
The furnace area in a Scotch Marine firetube boiler is referred to as the ____.
Steam created when very hot water is subjected to a drop in pressure
Steam is the _____ form of water.
Pressure lower than atmospheric pressure
Abbreviation for gauge pressure
Vacuums are typically measured in ____ (3 words)
Science of thermal energy and its conversion to and from other forms of energy
Largest class of steam boilers
Most common cause of boiler failures (2 words)
Boiler fabricated in a factory, ready to ship to installation site
Manifold into which several pipes flow or from which several pipes flow
Ductwork between the boiler and the stack
Verticales
Pressure exerted by the weight of a column of water bearing down by gravity (2 words)
Area times _____ equals total force.
Heat that causes a change in physical state
Waste heat recovery boiler used with a combustion turbine (abbreviation)
Water that is being pumped into a boiler
The evaporation of 34.5 lb of water into steam from and at 212 degrees F. is one boiler _____.
Heat transfer that utilizes a conveying medium
Has hot combustion gases on one side and boiler water on the other (2 words)
Adds heat to steam after the steam leaves the boiler.
High _____ pressure indicates that a strainer is plugging.
A high-pressure boiler has a (an) _____ above 15 psi.
Interferes with heat transfer through heating surfaces in a steam boiler
Heat transfer without physical contact or a conveying medium
Fluids take the path of least _____
Fuel formed below the Earth's surface from plant and animal remains
Water formed when steam gives up its latent heat