How many types of lines are there?
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.
What are the 10 types of lines?
Terms in this set (10)
- straight.
- curved.
- dotted.
- dashed.
- contour.
- variable.
- zig zag.
- implied.
What are the types of lines and their uses?
Types of lines and their uses
| Designating letter | Type of line |
|---|---|
| D | Continuous – thin, ruled with zig-zag |
| Application: Used only on break lines, other than on an axis. | |
| J | Chain – thick |
| Application: This line indicates that surfaces will need to comply with special requirements such as pipelines, drains and services. | |
What are the four uses of lines?
USES OF LINES
- It is used to indicate a part.
- It is used show direction.
- It is used as a symbol.
- It is used as a plan.
- It is used to make a sketch.
- It is used to mark out.
- It is used to cut out a part.
- It is used as measurement.
What is the importance of alphabet 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.
Which line is thick and black?
Answer: Object lines and hidden lines.
What is a Dimension 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.
Can dimension lines cross?
Dimension lines and extension lines should not cross, if avoidable. However, extension lines may cross each other. 23. When extension lines cross other extension lines or visible object lines, no break in either line should be made.