.

Keeping this in consideration, what is projection drawing?

Graphical projection is a protocol, used in technical drawing, by which an image of a three-dimensional object is projected onto a planar surface without the aid of numerical calculation.

Similarly, which symbol is used for projection? The projection symbol must be added to the completed drawing to indicate which system has been used. Figure 6.8 shows the recommended proportions of the two projection symbols.

Likewise, what is mean by projection in engineering drawing?

For obtaining the image of an object, various points on the contour of an object, are thrown forward on to a plane by means of straight lines or visual rays. The figure formed by joining various points thus obtained on the plane, is the image of the object and is called Projection.

What are the types of projection used in drawing?

In engineering drawing following four methods of projection are commonly used, these are:

• Isometric projection.
• Oblique projection.
• Perspective projection.
• Orthographic projection.