Question

How much does the distortion allowance vary?

(a) 1mm to 10mm

(b) 2mm to 20mm

(c) 1mm to 15mm

(d) 2mm to 15mm

This question was addressed to me by my college professor while I was bunking the class.

I would like to ask this question from Pattern Allowances in division Preventive Maintenance in Foundries & Metal Casting Process of Casting-Forming-Welding I

Answer 1

The correct answer is (b) 2mm to 20mm

To explain: In distortion allowance, the amount goes on to vary from 2mm to 20mm. This allowance depends on the shape of the casting that is being used. It also depends on the size of the cast and the material that is being employed for the casting.