Final answer:
The statement about the root face on the bevel being about as thick as a dime is false without more context. The root face thickness is determined by the specifications of the welding procedure and can vary depending on the material and type of weld required.
Step-by-step explanation:
Assuming the context of the question is welding, specifically referring to the preparation of a bevel on base metals before welding, the statement 'The root face on the bevel will be about as thick as a dime' could be considered false without additional context. In welding, the root face thickness is often prescribed by the welding procedure being used and can vary. A dime, which is approximately 1.35mm thick, may not be the correct thickness for all welding applications.
The root face, which is the un-beveled portion at the bottom of the v-groove in a weld joint, must be of an appropriate thickness for the specific welding application to ensure a strong and proper weld. The correct root face thickness will depend on various factors, including the type of material being welded, the welding process used, and the specifications of the weld quality required for the project.