Classify different types of manufacturing processes and evaluate how the selection of a specific process can impact product quality, cost, and material waste.

Explain the role of polarity in welding and analyze how selecting the wrong polarity could affect weld quality in different welding processes, such as Shielded Metal Arc Welding (SMAW) and Gas Tungsten Arc Welding (GTAW).

Write the governing equation for resistance welding and explain how heat generation is affected by varying current, resistance, and time. Additionally, compare spot welding and seam welding in terms of their applications and advantages.

A pump housing is to be manufactured using casting and later welded with a pipe connection. Which casting and welding processes would you apply, and why?

Apply your knowledge of stress–strain behavior to explain why ductile materials are generally preferred for welding compared to brittle materials.

What is heat-affected zone (HAZ) in welding? Why is it important for mechanical properties?