Red Seal Drywall Finisher and Plasterer Practice Exam 2025 – All-in-One Study Guide for Exam Success!

A taping knife is specifically designed for applying joint compound, making it the most suitable tool for this task. Its broad, flat blade allows for smooth, even application of the compound over drywall joints and seams. The wide edge helps to feather the compound out, creating a seamless finish that blends well with the surrounding drywall surface.

The design of the taping knife also enables the applicator to easily control the amount of joint compound applied, ensuring that it can be built up in thicker areas or smoothed out in others. This precision is crucial in achieving a professional finish, which is essential for both aesthetic appeal and proper adhesion.

In contrast, other tools like a trowel are more suited for different applications such as plastering or finishing surfaces, while hammers and screwdrivers have no relevance in the process of applying joint compound. Their functions are entirely different, focusing on fastening or driving in screws rather than applying material to a surface. Thus, the taping knife stands out as the correct choice for this specific drywall finishing task.