# Shared Flashcard Set

## Details

Sketching
IED Unit 19
37
Engineering
Not Applicable
03/18/2004

Term
 Extension Line
Definition
 Lines used to establish the extent of a dimension.
Term
 Object Lines
Definition
 Thick lines (0.32 inches) that show the visible edges of an object.
Term
 Hidden Lines
Definition
 Lines used to show interior detail that is not visible from the outside of the part.
Term
 Center Lines
Definition
 Lines (0.16 inches) that define the center of arcs, circles or symmetrical parts.
Term
 Construction Lines
Definition
 Very lightly drawn lines used as guides to help draw all other lines and shapes properly. Usually erased after being used.
Term
 Break Lines
Definition
 Freehand drawn lines that show where a part is broken to reveal detail behind the part or to shorten a long continuous part.
Term
 Section Lines
Definition
 Lines used to define where there is material after a part of the object is cut away.
Term
 Cutting Plane Lines
Definition
 Lines used to designate where apart has been cut away to see detail.
Term
 Dimension Lines
Definition
 Lines that are used to show distance. Arrows are drawn on the ends to show where the lines start and end.
Term
 Extension Lines
Definition
 Lines used to show where a dimension starts and stops on an object. Used with dimension lines to properly dimension an object. The line is 1/16 of an inch away from the part as to not get confused with object lines.
Term
Definition
 Used to show dimensions of arcs, circles, and to help show detail. Ar arrow head is used to point to the part you are dimensioning and the line comes off the arrow point at a 45 degree angle. At the end of this line a horizontal line is drawn with a note at the end telling information about what is being pointed at.
Term
 Phantom Lines
Definition
 Use to identify alternative positions that a part may take up.
Term
 Object Line
Definition
 Which has precedence, a hidden line or an object line?
Term
 Hidden Line
Definition
 Which has precedence, a hidden line or a center line?
Term
 Object Line
Definition
 Which has precedence, a center line or an object line?
Term
 Cutting Plane Line
Definition
 Which has precedence, a center line or a cutting plane line?
Term
 To convey ideas.
Definition
 What is the main purpose of sketching?
Term
 Practice
Definition
 What must you do in order to be a good sketcher?
Term
 Vertical, Horizontal and Inclined.
Definition
 What are the three line types?
Term
 Rise over run.
Definition
 How do you find the slope of an inclined line?
Term
 1. Draw intersecting lines.2. Mark off equal distances.3. Draw a line between these marks.4. Draw center mark.5. Make the arc by connecting thetwo ends through the center mark.
Definition
 List the 5 steps in sketching an arc.
Term
 1. Draw intersecting axes to setup the diameter.2. Square in the diameter.3. Sketch diagonals.4. Identify triangle centers.5. Make four arcs by connecting thetwo ends through the center mark in each of the four triangles.
Definition
 List the 5 steps in sketching an circle.
Term
 Size
Definition
 What are length, width, height, and distance related to?
Term
 Proportion
Definition
 "If two objects are five feet apart in real life, then those two objects must appear to be five feet apart in your sketch." What term describes this?
Term
 1. Using a pencil to measure.2. Boxing in the sketch.
Definition
 What two techniques can you use to create correct size and proportion?
Term
 Perspective
Definition
 A view of an object created with one or more points vanishing to the horizon.
Term
 Pictorial Sketches
Definition
 Sketches that show height, width, and depth all in one view.
Term
 Isometric
Definition
 A drawing projected so that the plane of projection of a three-dimensional drawing forms equal angles (120 degrees) to each of the three axes of the object.
Term
 Oblique
Definition
 A form of pictorial sketch in which two axes are at right angles to each other (one vertical, one horizontal) and the depth axis is at an oblique angle.
Term
Definition
 An area of relatively dark tone or close lines, dots, or hatch marks that produces darkness or shadow in a drawing or picture.
Term
 1) Straight line2) Stipple
Definition
 What are the two main types of shading?
Term
Definition
Term
 Multiview Drawings
Definition
 What is another name for orthographic drawings?
Term
 Third Angle
Definition
 What is the standard angle of projection in the United States when using orthographic drawings?
Term
 Six
Definition
 How many views are possible in orthographic projection?
Term
 Front, top, and right
Definition
 What are the most common views used on a drawing sheet in orthographic drawings?
Term
 1. Most natural position or use2. Shows best shape and characteristic contours3. Longest dimensions4. Fewest hidden lines5. Most stable and natural position6. Relationships of other views
Definition
 What characteristics should you look at when selecting your front?
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