Exam 8: Machining Symbols and Revision Blocks

The symbol for diameter is .

The value (amount) of the machining allowance is given adjacent to the machining symbol.

The abbreviation for millimeter is ____.

The abbreviation/symbol for finish all over is ____.

When a new drawing is made to accommodate a variety of changes, the words REDRAWN or ____________________ should appear in the revision column of the new drawing.

The machining symbol may be placed on the line representing the surface to be machined, on a leader, or on a(n) ______________________________ locating the surface.

Castings are often made with extra material to allow for _________________________ or finishing.

In a case where all surfaces on a part are to be machined, a general note such as ___________________________________ may be used and the individual symbols may be omitted on the drawing.

The symbol for a finished surface is ____.

A straight line drawn below a dimension indicated that it is _________________________.

The acronym CSA stands for Canadian Standards Association.

Long-break lines are thick lines with freehand zigzags.

The size of a revision block is the same on every drawing.

The symbol used to indicate "removal of material not permitted" is ____.