The electrode holder jaws have machined into them to allow for holding electrode at various different angles. This allows the welder to choose (an) that provides comfortable access to the weld joint based on welding joint design and the welding position of the work.

Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)