General Contractor Practice Exam

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What is the recommended method for mixing a ready-mix compound for drywall mud?

Power drill
Shovel
Potato masher
Hand mixer

The correct answer is: Potato masher

Mixing drywall mud properly is crucial for achieving a smooth and consistent texture that adheres well to surfaces. The recommended method for mixing a ready-mix compound is to use a power drill equipped with a mixing paddle. This tool effectively incorporates all the materials, ensuring a uniform blend without introducing excessive air bubbles. While hand mixers can be effective for smaller volumes, and shovels can sometimes be used in larger batches, they do not provide the same level of efficiency and thorough mixing as a power drill. A potato masher is not suitable for mixing drywall mud because it lacks the capability to achieve the necessary consistency, as it is primarily designed for soft foods and not for the heavier texture of compound. Overall, the power drill method allows for precise control over mixing speed and power, enabling better integration of the compound than other hand-held tools or methods. Using a power drill also minimizes the effort needed compared to manual mixing methods.