Bevel angle, root gap, and electrode size matter for hull welding joints because they determine what?

• A. They determine penetration, sound weld fusion, heat input, and defect risk; improper values cause lack of fusion, cracks or porosity.
• B. They determine the color of the weld.
• C. They have no effect on weld quality.
• D. They determine how quickly the patch cools.

Answer: (A)