General Contractor Practice Exam

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What is a slag base?

Treated byproduct of ore processing
Untreated byproduct of ore dressing
Material used for filling foundations
Recycled asphalt component

The correct answer is: Untreated byproduct of ore dressing

A slag base refers specifically to an untreated byproduct of ore dressing, which is the process of separating ore from its impurities or waste material. In metallurgy, slag is formed during the extraction of metal from its ore and consists primarily of silicates, metal oxides, and other impurities. This makes it useful as a base material, particularly in construction and civil engineering applications. The characteristics of slag provide a stable, durable base for various structures when used in construction. It can improve drainage and reduce settlement, making it a favorable choice in foundation work and road construction. Understanding the origin and properties of different construction materials is critical for selecting the appropriate one for a given project, which is why recognizing slag as an untreated byproduct of ore dressing is essential for proper utilization in construction contexts.