Architectural and Engineering Glossary
C
A unit electric conductor having a cross-sectional area of 1 circular mil and a length of 1 ft.
civic wreath In ancient Rome,an honorary ornament,consisting of a garland of oak leaves,on a monument to one who had saved the life of a Roman citizen in battle.
An engineer trained in the design of static structures such as buildings,roads,tunnels,and bridges and the control of water and its contaminants.
On drawings,abbr. for “circuit.”
On drawings,abbr.for circuit breaker.
A term occasionally used as a synonym for Virginia house.
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In fire sprinkler systems,a type of sealing assembly.
Same as clack valve.
Same as lock stile.
A type of built-up wood beam consisting of joists or planks which are bolted together and then reinforced with wood pieces nailed along both edges of the joint.
Same as cut nail.
As applied to concrete:a characterization according to some quality (such as compressive strength) or usage.
A door having a 3 hr fire endurance rating,suitable for use as a closure in a class A opening.
A door having a 1 or 11⁄2 hr fire endurance rating,suitable for use as a closure in a class B opening,such as fire exits and passageways.
A door having a 3⁄4 hr fire endurance rating,suitable for use as a closure in a class C opening.
A door having a 11⁄2 hr fire endurance rating,suitable for use as a closure in a class D opening in an exterior wall.
A Colonial revival house having a hipped roof and a full width front porch.
See order.
A keystone of an arch.
See clavel.
See pinch bar.
A chisel with a serrated cutting edge;used in cutting stone.
A carpenter’s hammer with a flat striking face;the other end of the head is curved,and divided into two claws for pulling nails.
See shingling hatchet.
A building unit,larger than a brick,composed of burnt clay,shale,fire clay,or some mixture thereof.
See vitrified-clay pipe.
See puddle.
That portion of fine-grained soil that is finer than 0.002 millimeter.
An attachment for a pneumatic paving breaker,with a wide,flat chisel-like working blade that cuts through cohesive material like clay.
1.A roofing tile of hard,burnt clay.2.In flooring,a quarry tile.
Masonry mortar which has been plasticized by the addition of finely ground clay.
The boards lining the sides of an excavation,pit,or shaft.
In a fire suppression system,any electrically nonconducting,volatile,or gaseous extinguishant that does not leave a residue when it evaporates.
Fine or coarse aggregate,free of such material as clay,silt,or organic substances.
In masonry,the visible end of a stone laid as a bondstone.
Electric power having a relative absence of electrical noise and harmonics so that its voltage waveform is essentially a sine wave.
An assembly room for precision products whose quality would be affected by dust,lint,or airborne pathogens;usually has smooth room surfaces to prevent dust collection;air precipitators or filters keep dust,lint,etc.,to a specified minimum level.
Same as clear lumber.
British term for clear lumber.
The property of a paint film which permits easy removal of dirt,stains,and other surface contamination.
A cleanout.
The movable part of a window which opens only for cleaning the window;usually unlocked with a special key or wrench.
1.A pipe fitting with a removable plug which provides access for inspection or cleaning of the pipe run.Also called an access eye or cleaning eye.2.An opening at the base of a chimney,stack,or breeching for the removal of dust,soot,etc.3.An opening in concrete forms for removing debris;closed before the concrete is placed.
1.An ashpit door.2.A door providing access to a soil pipe,the base of a column form,or the like. 3.A soot door.
The net distance,free from interruption,between any two surfaces or areas.
Said of an inseparable ceramic glaze that is firebonded and translucent or tinted with a lustrous finish.
The open space between two components or members of a building.
According to the Americans with Disabilities Act,the minimum unobstructed floor space needed to accommodate a wheelchair and its occupant.
A colorless or colored transparent ceramic glaze.Also see ceramic color glaze.
A vertical height providing an unobstructed clearance.
