Lesson 1/Practice Exercise
Requirement 3:
Refer to Figure 16, and determine the measurement shown on the standard
A
B
a. Highest figure
visible on barrel.
_____
=
_____ in
b. Number of lines visible
between A above and
thimble edge.
_____
=
_____ in
c. Line on the thimble
that coincides with or
has passed the revolution
barrel.
_____
=
_____ in
d. Measurement reading.
Total
=
_____ in
FIGURE 16.
STANDARD MICROMETER SCALE
20
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