Autodesk 235B1-05A761-1301 User Guide - Page 827

elevation (2) The vertical distance between the level where fluid enters a pipe and the level where it leaves. elevation (3) An orthographic projection of a building model. See also model. elevation difference The difference between the selected pipe and the highest fixture, also known as the limiting fixture. elevation labels Annotation used to dimension height values in plan and section views. See also annotation symbols. elevation marks Annotation used to designate where source objects are being cut to generate an elevation view. end-of-line symbol An AutoCAD block that typically appears at the start or end of a schematic line and is not anchored to the schematic line. engineering data Design specifications assigned to spaces, zones, and ductwork. engineering properties Energy requirements assigned to spaces and zones. These calculations are derived from analysis by an external tool, and then imported into the drawing and assigned to the appropriate zones. entity reference (entref) An object that makes a reference to another object and updates dynamically if the referenced object is altered. Entity references are similar to blocks, except that their definitions must remain as objects in the drawing editor. explode The conversion of a complex object, such as a block, into its basic objects, such as lines and circles. external reference (xref) A drawing that is linked to another drawing. fabrication The process of manufacturing duct fittings or assembling pipe spool sections. feature In Content Builder a building block of a parametric part model. You combine features to create parametric models. feeder A circuit, such as conductors in conduit or a busway run, that typically provides a high current carrying capacity (larger than branch circuits). fitting Any type of connector used to join 2 or more individual segments, for example, a tee and an elbow. fixture (1) Any electrical device that consumes power. fixture (2) A device (sink, tub, toilet) that either provides or disposes of a supply of water. fixture tag A type of annotation that links property set information to schedule tables for fixtures, such as toilets and sinks. fixture unit The design factor used to determine the load-producing value of various plumbing fixtures. flange A plate or flat ring bolted to the projecting collar at the end of a segment of pipe to close the end or connect it to another segment. A joint type that mates with another flange to connect pipes, fittings, or equipment flange face The mating surface of a flange that makes contact with the mating flange to complete a connection. flat riser diagram Orthographic riser diagrams are also referred to as flat riser diagrams. See also orthographic riser diagram. flexible A flexible segment used, for example, to connect a segment to a part. Different patterns can be applied to display the flexible segments. float A ball, connected to the ballcock in a tank, that rises or falls when the water level in the tank changes, and actuates or shuts off the ballcock. Floating Viewer A separate window on screen that displays objects with orbit commands. See also orbit. Glossary | 809