It doesnt matter which language you speak till you can understand and speak the language of engineers। And what is the language of engineers?
Well, drawing is the language of engineers.
In day-to-day of professional life, we come across a lot of drawings. Normally, these are the orthographic projection of the equipment in 3 planes. The visible edges are represented by lines. The hidden edges and centre lines are represented by dotted lines. Important dimensions are given and some less important dimensions need to be derived. The important conventions are given in the bottom right corner.
Orthographic projections can be either in first angle or third angle projections. They are represented as follows:
Another system of drawing is the isometric projection. It is somewhat a 3D image of the equipment which shows only the visibe planes. It is made to visualize the actual object and is rarely used in day-to-day engineering.
