Correct option is B
In jig and fixture design, the
tolerance on the jig should be at most
one-third to one-half of the tolerance of the hole in the workpiece. This ensures proper
guidance and accuracy in machining.
Given:
· Tolerance on the hole in the job =
±0.05 mm
· Total tolerance =
0.10 mm (since ±0.05 mm means total variation is 0.10 mm)
· Recommended jig tolerance =
one-third to one-half of the workpiece tolerance
0.10 × 1/4 = 0.025 mm (approx.)
