Is engineering graphics same as engineering drawing?
Engineering drawing, most commonly referred to as engineering graphics, is the art of manipulation of designs of a variety of components, especially those related to engineering.
What is difference between graphics and drawing?
As nouns the difference between drawing and graphics is that drawing is a picture, likeness, diagram or representation, usually drawn on paper while graphics is the making of architectural or design drawings.
What is difference between engineering drawing and drawing?
Years ago they were done by pencil on a drafting table, but now engineering drawings are done on a computer using CAD (Computer Aided Design) software. The word drawing usually implies any kind of sketch or artistic representation done by hand on paper, although a computer could also be used.
What are the three types of engineering drawings?
Types of drawings. The guidelines provide a list of appropriate drawings created by engineers. Listed are detail drawings, assembly drawings, schematic drawings, and many other content specific drawing types.
What is 1st & 3rd Angle Projection?
In third-angle projection, the view of a component is drawn next to where the view was taken. In first-angle projection, the view is drawn on the other end of the component, at the opposite end from where the view was taken.
How do you read 1st and 3rd angle drawings?
The difference between first and third angle projection is in the position of the plan, front and side views. In third angle, what you see from the right would be drawn on the right. In first angle, the view from the right would be projected through and drawn on the left.
Why we use only 1st and 3rd angle projection?
We consider that horizontal plane rotates in clockwise direction after having projection on it. that’s why we use 1st angle and 3rd angle projection. because only in this two quadrants we will get the both views after clockwise rotation of horizontal plane.
Why 2nd and 4th angle is not used?
Overlapping projection views create confusion in the drawing. Therefore the 2nd angle projection system is not used to draw engineering drawings. Similarly when the object is placed in the 4th quadrant both the top and front view will overlap. Therefore fourth angle projection is also not used.
What are the two main types of projection?
There are two main types of projection:
| 1) | Parallel and Convergent |
|---|---|
| 2) | Perspective and Parallel |
| 3) | Parallel and Orthographic |
| 4) | Station-point and Perspective |
| 5) | NULL |
What are the three regular views?
Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side view. Occasionally, more views are used for clarity. The side view is usually the right side, but if the left side is used, it is noted in the drawing.
What is first angle of projection?
In the first angle projection, the object is placed in the 1st quadrant. The object is positioned at the front of a vertical plane and top of the horizontal plane. First angle projection is widely used in India and European countries. The object is placed between the observer and projection planes.
What are the 6 principal views?
What are the six principal views of an object? Front, top, right side, left side, rear, and bottom.
What are the 4 orthographic views?
An orthographic projection is a way of representing a 3D object by using several 2D views of the object. Orthographic drawings are also known as multiviews. The most commonly used views are top, front, and right side.
What does a hidden line look like?
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.
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. Figures 4-11 and 4-12 show objects that require hidden lines in their orthographic views.