Question

Phosphor bronze contains approximately _________ % of phosphorous.

(a) 3.5

(b) 0.9

(c) 0.05-0.5

(d) 26

I got this question during a job interview.

This key question is from Properties of Copper and its Alloys-3 topic in section Copper and its Alloys of Aerospace Materials & Processes

Answer 1

Correct option is (c) 0.05-0.5

The explanation: Phosphor bronze consists of several different elements. It contains approximately 0.05-0.5% of phosphorus and a minimum of 3.5% of tin. Phosphor bronze also contains other elements like iron as well.