Correct Response: D. The greatest clearance will occur for the smallest allowable dowel diameter (8.5 mm – 0.1 mm = 8.4 mm) and the largest allowable hole diameter (9.0 mm + 0.1 mm. = 9.1 mm). This maximum clearance will be the difference between the diameters (9.1 mm – 8.4 mm = 0.7 mm). Answer choice (A) assumes that the greatest clearance would be equal to the greatest tolerance. Answer choice (B) assumes that the greatest clearance would be equal to the sum of the tolerances. Answer choice (C) assumes that the tolerances have no effect on the greatest clearance. It is incorrectly calculated that the greatest clearance is equal to the difference (9.0 mm – 8.5 mm) = 0.5mm.
