Refresher Practical Problems Practice Test 2025 – The Comprehensive Guide to Master Your Exam!

Question: 1 / 400

How much zinc is typically found in a brass fitting?

5%

Brass is an alloy primarily composed of copper and zinc, and the proportion of zinc can vary significantly depending on the specific type of brass. In general, the typical zinc content in many commercial brass fittings tends to be around 5%, especially in classic brass formulations. This low percentage provides the desired mechanical properties, such as improved corrosion resistance and enhanced strength without compromising the ductility and workability that brass is known for.

Higher zinc percentages, such as those in the other choices, can be found in different brass alloys, but they are not as common for standard fittings. Thus, when considering typical brass fittings, around 5% zinc is representative of the composition most frequently found in practice.

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10%

15%

20%

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