Question
Question: What is the final reading of callipers as shown – 
A
1215 mm
B
12.15 cm
C
1.215 mm
D
1.215 cm
Answer
1.215 cm
Explanation
Solution
LCR = 12 × 1 = 12mm
CSR = 15 × 0.01 = 0.15
so reading = 12.15 mm = 1.215cm