Figure 1-3.Structural or foundation plan.
should work directly from the jobsite plans or working
drawings, so the finished job is done properly and
complies with the plans.
The chief parts of a mechanical plan are the views
of the fixtures and equipment and the layout and details
of the system. Plans also contain written information in
the title block; the scales; the lines, symbols, and
abbreviations; the print notes; the revision block; the
drawing, reference, and zone numbers; and the bill of
material. All of these areas are covered in detail in
Blueprint Reading and Sketching, NAVEDTRA
Q1. In Seabee construction, a complete set of
blueprints consists of how many plans?
Q2. The plans normally used by Seabees in
construction are created by whom?
Q3. If you wanted to know the height of an exterior
wall of a structure, to what section of the plans
should you refer?
Q4. On the jobsite, you will work from what type of
LEARNING OBJECTIVE: Recognize and
develop isometric drawings.
You may not be able to sketch or draw objects
exactly as they should look or as a two-dimensional
orthographic picture. However, with the aid of some
basic rules and practice, you can learn to draw an
PURPOSE OF THE ISOMETRIC
The purpose of an isometric drawing is to show a
three-dimensional picture in one drawing. It
resembles a picture without the artistic details. Many
Utilitiesmen have difficulty in visualizing a piping
installation clearly when they are working from a floor
plan to an elevation drawing and back again. The
isometric drawing combines the floor plan and the
elevation. It clearly shows the details and the
relationship of the pipes in a piping installation.
Normally, isometric drawings are NOT drawn to
scale on blueprints; however, when you sketch out an