Deck 8: Machining Symbols and Revision Blocks

Question 1

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

Answer 1

not to scale

Question 2

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

Answer 2

False

Question 3

The abbreviation for millimeter is ____.

A) mm.
B) µm
C) mm
D) MM

Answer 3

C

Question 4

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

Question 5

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.

Question 6

The symbol for a finished surface is ____.

A)
B)
C)
D)

Question 7

The abbreviation/symbol for finish all over is ____.

A) FAO
B) F.A.O.
C)
D)

Question 8

Long-break lines are thick lines with freehand zigzags.

Question 9

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.

Question 10

The acronym CSA stands for Canadian Standards Association.

Question 11

The symbol for diameter is .

Question 12

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

A)
B)
C)
D)

Question 13

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.

Question 14

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