Question: Which Type Of Line In A Sheet Should Be The Thickest?

What is a 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.

Sometimes they are used to make a drawing easier to understand.

Often they are omitted in an isometric view.

Section Line..

What is a straight line called?

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. … Two lines lying in the same plane that do not intersect one another are said to be parallel lines.

What is the heaviest line in 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 are alphabet lines?

The Alphabet of Lines is a list of line symbols that engineers use in technical drawings to communicate specific shapes, sizes or surfaces. The lines and symbols used in the Alphabet of Lines are universal, which means engineers around the world use and understand them.

What are the 7 types of lines?

There are many types of lines: thick, thin, horizontal, vertical, zigzag, diagonal, curly, curved, spiral, etc. and are often very expressive.

Which line is thick and black?

Answer. Answer: Object lines and hidden lines.

Do lines have thickness?

A line is defined as a line of points that extends infinitely in two directions. It has one dimension, length. … A plane extends infinitely in two dimensions. It has no thickness.

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 use of thick line?

Match the following. Explanation: Thick-thin-thick are used for cutting planes, dashed thick (wide) is used for surface treatment, zigzag lines are used for long-break lines and continuous thin line is used for dimensions, extensions and projection lines.

What are the different types of lines in drafting?

Using the Alphabet of LinesConstruction Line. This line is used mainly in sketching, which is a freehand drawing technique. … Visible Object line. This line is used to draw all the edges of the object. … Hidden Object Line. … Centre Line (or centreline) … Extension Line. … Dimension Line.

Where do you put 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.

How do I find hidden lines in an object?

A drafter—in deciding whether a line in a view should be represented as hidden or as visible—relies on the fact that in third-angle projection the near side of the object is near the adjacent view, but in first-angle projection the near side of the object is remote from the adjacent view.

Is a line horizontal?

Anything parallel to the horizon is called horizontal. As vertical is the opposite of horizontal, anything that makes a 90-degree angle (right angle) with the horizontal or the horizon is called vertical. So, the horizontal line is one that runs across from left to right.

What is the leader line?

A leader line is a line that establishes a connection between a graphical representation of an item and some text. A leader points to a bit of our drawing and says: … A leader line also has a terminator and some text. A leader line may have a reference line under the text.

What are the uses of line?

We use lines to organize, connect, and separate information and design elements. You can use lines to convey movement and create texture. Lines provide emphasis and define shape. They can be used to convey mood and emotion.