Question

what type of wire is best used with v - grooved drive rolls?
all wires
only soft wires
only aluminum
most wires except aluminum

Explanation:

V - grooved drive rolls are designed to grip wires effectively. Aluminum wires have a relatively soft and smooth surface compared to many other wires. When used with V - grooved drive rolls, aluminum wires may not be gripped as well as other wires due to their properties. Soft wires (excluding aluminum in this context) and most other wires can be better accommodated by the V - groove design for proper driving or handling.

Answer:

Most wires except aluminum