Question

When nothing is placed between jaws of a verniercallipers of MSD = 1 mm then sixth vernier scale division coincides with a main scale division and zero of main scale is on left of zero of vernier scale. Calculate zero error if 9 main scale divisions equals 10 vernier scale divisions –

• A. – 0.6 mm
• B.
  • 0.6 mm
• C. – 0.4 mm
• D.
  • 0.4 mm

Answer 1

Answer: (B)

• 0.6 mm

Answer 2

LC = $\frac { 1 } { 10 }$ = 0.1 mm

zero error = + 6 × 0.1 = + 0.6 mm