Answer:
Step-by-step explanation:
How to find main scale and vernier scale reading?
Follow these steps to read the vernier scale:
Read the main scale. Look for the last whole increment visible before the 0 (zero) mark.
Read the secondary scale (Vernier) measurement. This is the division tick mark that lines up best with a mark on the main scale.
Add the two measurements together.
How do you find the main scale reading?
The main scale on a Vernier caliper typically tells you the whole number plus the first decimal. Read this just as you would a ruler, measuring to the zero mark on the sliding (Vernier) scale. For example, if the 0 on the sliding scale lines up with the 2 inch mark, your measurement is 2 inches