of the scale is further subdivided into 12 equal parts

as a reduced or enlarged print. This type of scale is

representing 1 inch each and the 3/32-inch

used with standard Army plans for frame structures.

subdivision into six equal parts representing 2 inches

each.

The method of scaling using architects' or engineers'

fig. 1-2) are divided into decimal graduations (10, 20,

scales is as follows:

30, 40, 50, and 60 divisions to the inch). These

scales are used for plotting and map drawing and in

the graphic solution of problems.

print from the notation given such as 1/4 inch = 1

foot-0 inches; 1 inch = 20 feet; 3/16 inch = 1 foot-0

inches and so forth.

are used in conjunction with the drawings, maps, and

so forth that are made in countries using the metric

system. This system is also being used with

on the architects' or engineers' scale.

increasing frequency in the United States. The scale

is divided into centimeters and millimeters. In

measure the desired dimensions on the print. Figure

conversion, 2.54 centimeters (cm) are equal to 1 inch.

1-3 illustrates the use of an architects' scale. Note

that alining the 1-foot mark with the right hand end

2) are lines subdivided into distances corresponding

of the footing gives a direct reading of 1 foot, 9

to convenient units of length on the ground or of the

inches for the length of the footing.

object represented by the tracing. The graphic scale

is placed in or near the title block of the drawing, and

normally used with graphic scales is as follows:

the relationship of its length to the scale of the

drawing is not affected if the drawing is reproduced

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