Question

What is the maximum error for Flatness of clamping surface?

(a) 0.1/1000 mm

(b) 0.1/100 mm

(c) 0.5/100 mm

(d) 0.01/1000 mm

The question was posed to me in unit test.

This interesting question is from Alignment Tests on Pillar Type Drilling Machine topic in division Machine Tool Metrology of Engineering Metrology

Answer 1

Right answer is (a) 0.1/1000 mm

Easy explanation: The maximum error allowed for Flatness of clamping surface is 0.1/1000 mm clamping surface. The surface should be concave only for correct results.