Red Seal Auto Body and Collision Technician Practice Exam

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When would a body technician use a hammer and dolly?

To reshape and smooth out metal surfaces during repairs.
To bond two pieces of metal together.
To apply paint evenly across a surface.
To roughen up a surface for better paint adhesion.

The correct answer is: To reshape and smooth out metal surfaces during repairs.

Using a hammer and dolly is a fundamental technique in the field of auto body repair, particularly for reshaping and smoothing out metal surfaces. This method is employed during the repair process to work out dents and imperfections in the metal panels of a vehicle. The dolly acts as a support behind the panel, while the hammer is used to strike the high spots, effectively leveling the surface and restoring its original shape. This technique is essential because it allows for precision in metalworking, helping to maintain the integrity of the panel while also preparing it for subsequent processes, such as sanding and painting. The hammer and dolly method provides a way to manipulate metal without cutting or replacing it, which can be more cost-effective and time-efficient in many repair scenarios. Proper usage of these tools results in a smooth finish that is easier to paint and blend, ultimately restoring the vehicle's appearance.