Lesson 2/Learning Event 2

Reading a Metric Vernier Caliper

Refer to Figure 35, the steel rule (1) is divided into centimeters (cm) (2).

The longest lines each represent 10 millimeters. Each millimeter is divided

into quarters.

The vernier scale (3) is divided into 25 parts and is

numbered 0, 5, 10, 15, 20, and 25.

FIGURE 35.

METRIC VERNIER CALIPER SCALE

Again refer to Figure 35.

The metric vernier caliper would be read as

follows:

a. The total number of millimeters

(1) to the left of the vernier

zero index (2) and record.

32.00 cm

b. The number of quarters

(3) between the millimeter

mark and the zero index and

record.

.25 mm

c. The highest line on

the vernier scale (4) which

lines up with the line on

the scale (5) and record.

.18 mm

d. Add the three readings.

Total 32.43