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 the 12 types of lines?
- Object lines. shows the contour or outline of objects.
- Hidden lines. represents features that are hidden in current view.
- Centerlines. locates the center of circles and arcs.
- Extension lines. show the extinct of a dimension.
- Dimension lines. ...
- Leader lines. ...
- Cutting-plane lines. ...
- Viewing-plane lanes.
What is the use of Alphabet of lines?
The lines in the Alphabet of Lines are used to describe shape, size, hidden surfaces, interior detail, and alternate positions of parts . Each conveys a particular meaning on the drawing.
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 the lines used in drawing?
- Figure Alphabet of Lines used in Technical Drawings.
- Figure Horizontal Lines.
- Figure Vertical Lines.
- Figure Isometric (30 degree) Lines.
- Figure Construction Lines.
- Figure Visible Object Lines.
- Figure Hidden Line (dashed line)
- Figure Center Line.
What are the five alphabet lines?
- CONSTRUCTION LINE – Very light and thin line use to construct layout work.
- DIMENSION LINE – Thin and dark lines use to show the size (span) of an object with a numeric value. ...
- HIDDEN LINE – Short dash lines use to show non visible surfaces. ...
- CENTER LINE – Long and short dash lines.
What is a dimensional line?
The dimension line is a fine, dark, solid line with arrowheads on each end. It indicates direction and extent of a dimension . In machine sketches and drawings, in which fractions and decimals are used for dimensions, the dimension line is usually broken near the middle to provide open space for the dimension numerals.
What are the 10 types of lines?
- straight.
- curved.
- dotted.
- dashed.
- contour.
- variable.
- zig zag.
- implied.
What are the 7 types of line?
There are many types of lines: thick, thin, horizontal, vertical, zigzag, diagonal, curly, curved, spiral, etc . and are often very expressive.
What are the 8 types of lines?
- Horizontal. Going straight across from side to side.
- Vertical. Going straight up and down.
- Diagonal. a straight line from one corner to another corner.
- C curves. Looks like a C.
- S Curves. Looks like an S.
- Arches. Arc-like curve.
- Spirals. winding or circling around a central point.
- Circle.
What are 3 kinds of lines?
In geometry, there are different types of lines such as horizontal and vertical lines, parallel and perpendicular lines .
What is a real life example of a line?
What is a real world example of a line? Real-world examples of line segments are a pencil, a baseball bat, the cord to your cell phone charger , the edge of a table, etc. Think of a real-life quadrilateral, like a chessboard; it is made of four line segments.
What is called line?
A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions . A line is sometimes called a straight line or, more archaically, a right line (Casey 1893), to emphasize that it has no “wiggles” anywhere along its length.
Is used to draw lines?
Answer: Answer: Ruler is used to draw straight line.
What is the thickness of a line called?
Line quality is also called line weight and simply put, refers to the thickness or thinness of the line. Lines may become wider or thicker in areas where the object itself is thicker.
What is the object line?
A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object . Hidden Line. A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen.
