Which copper alloy is characterized by the inclusion of tin and sometimes zinc?

Prepare for the TSSA Refrigeration Class 4A Certificate Exam with comprehensive quizzes and detailed study guides. Master multiple choice questions with hints and explanations to ensure exam readiness.

Bronze is a copper alloy primarily composed of copper and tin, with the potential addition of other elements like zinc to enhance its properties. The inclusion of tin in bronze gives it significant advantages such as improved strength, corrosion resistance, and wear resistance compared to pure copper. This makes bronze particularly suitable for applications where durability and performance are crucial, such as in bearings, gears, and artistic sculptures.

In contrast, other choices on the list have distinct compositions that do not primarily feature tin with copper. For example, brass is an alloy of copper and zinc, not tin, while white metal refers to a category of alloys, often containing tin, but not specifically copper. Babbit is a specific alloy used for bearings but is generally made of tin and other metals rather than primarily copper. Therefore, the defining characteristic of bronze in this context is its primary composition of copper and tin, making it the correct answer.

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