The diagram above is a micrometer screw gauge. Determine its reading.
Attached Figure / Diagram
A
2.44mm
B
2.46mm
C
2.86mm
D
2.96mm
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
- Main scale: 2 mm
- Thimble scale: 46 divisions × 0.01 mm = 0.46 mm
Total reading = 2 + 0.46 = 2.46 mm
Source: WAEC / JAMB / NECO Classroom Archive (Record #49910)