Relative Position of Views:

Two alternative orthographic projection methods of equal significance can be employed. They are the first angle projection methods and the third angle projection method.

First Angle Projection Method

Along with reference to the front view (a), the other views are arranged as given and are depicted in diagram.

(a) The view from top, that is plan, is put below the front view.

(b) The view from the below, that is bottom view, is put above the front view.

(c) The view from the left, that is left side view, is put on the right side of the front view.

(d) The view from the right side, that is right side view, is put on the left side of the front view.

(e) The view from the rear, that is back side view, may be put on the right side or on the left side of the front view, as per convenience.

The symbol like adopted with BIS for first angle projection method is shown in diagram.