The purpose of construction lines is
to give you an outline of what you are about to draw
. Object lines are used for outlining the shape and giving it its main features.
What is the purpose of hidden lines and center lines?
2. What is the purpose of hidden lines and center lines?
Hidden lines “show” objects/shapes that are hidden in that perspective view
. Center lines show where the center of that part of the figure lies.
What is the purpose of construction lines?
Construction lines (also known as xlines) are temporary linework entities that
can be used as references when creating and positioning other objects or linework
. For example, you can use construction lines to prepare multiple views of the same item, or create temporary intersections to serve as object snaps.
What is the purpose of hidden lines in construction drawings quizlet?
The purpose of hidden lines is
to show where other faces exist that are not seen
. Center lines show the diameter of circles in a sketch.
What is a object line in construction?
Object lines:
show major outlines of building elements or objects
. • Hidden lines: indicate areas or objects not visible on the surface, or objects hidden behind others. They are also used to show objects above the cutting plane of a floor plan, such as wall cabinets, beams, arches, etc.
Do you dimension hidden lines?
Dimensioning to
hidden lines should be avoided wherever possible
. ... Dimensions should not be placed on a view unless clarity is promoted and long extension lines are avoided. 9. Longer dimensions should be placed outside all intermediate dimensions so that dimension lines will not cross extension lines.
Why hidden lines and center lines are used in mechanical engineering?
Hidden lines in a
drawing represent the edges where surfaces meet but are not directly visible
. Hidden lines are omitted from pictorial drawings unless they are needed to make the drawing clear. In general, use centerlines sparingly in isometric drawings. ...
How do you use hidden lines?
Hidden lines are used to
show surfaces that are not directly visible
. All surfaces must be shown in all views. If an edge or surface is blocked from view by another feature, it is drawn using a hidden line.
What are the types of lines?
The four types of lines are
horizontal line, vertical line, parallel line and perpendicular line
. They are defined by their orientation and the angles formed between them. Let’s take a closer look at them.
What are leader lines?
A leader is
a length of line attached on one end to the eye of a lure or hook
, and the other end is attached to the main line on a reel. The two lines are usually connected by tying the two pieces together with a knot or tying each line to the separate ends of a swivel.
What is the heaviest line in a drawing?
The heaviest line weight indicates
the ground line cut
. The next heaviest line weight “profiles the planes closest to the plane of projection” (Ching & Juroszek, 1998, p. 152). Medium line weight indicates distance from picture plane, progressively getting lighter to describe objects further from the picture plane.
What do you call the line symbols used in technical drawing?
Line symbols used in technical drawing are often referred to as
ALPHABET OF LINES
. The use of line symbols enables engineers/designers to express the features of designed products clearly and accurately. Line features vary not only by width but also by how they are graphically represented in a drawing.
What are construction lines quizlet?
STUDY. Isometric.
a method for visually representing three-dimensional objects in two dimensions in technical and engineering drawings
. It is an axonometric projection in which the three coordinate axes appear equally foreshortened and the angles between any two of them.
What are the 6 types of lines?
There are many types of lines:
thick, thin, horizontal, vertical, zigzag, diagonal, curly, curved, spiral, etc
. and are often very expressive. Lines are basic tools for artists—though some artists show their lines more than others.
What object represents a line?
Answer: The following can represent a point: corner of a table; tip of a needle; intersection of the front wall, side wall and ceiling; tip of a ballpen. The following can represent a line:
intersection of a side wall and ceiling, laser, electric wire edge of a table
.
How are construction lines drawn?
To draw a construction line,
first specify a single datum point through which the construction line will pass
. After the datum point is specified, additional construction lines can be drawn through the same datum point. There is no limit to how many construction lines can be created. Line orientation can be changed.
