Question

Using the caliper below, what distance does it read?

• 0.35cm 

• 1.17cm 

• 2.15cm 

• 2.5cm 

Answer 1

Solution) Seeing the main scale the immediate left to the 0 of vernier scale is 1.1 cm which is the main scale reading

know the line of 7 from main scale and vernier scale are most promisingly aligned which is then multiplied by least count of 0.01 giving us the vernier scale reading of 0.07.

Reading = main scale + vernier scale = 1.1 + 0.07 = 1.17 cm