What is the main limitation of the submerged arc welding process? a) It can only be applied in overhead and horizontal positions. b) It requires c...

The answer is b) It requires continuous addition of flux, which increases costs and failure probabilities.

Submerged arc welding (SAW) is a type of arc welding that uses a consumable flux to protect the weld from the atmosphere. The flux is added continuously as the weld is being made, which helps to prevent the weld from rusting and also helps to create a smooth, uniform weld bead.

The main limitation of SAW is that it requires continuous addition of flux, which can be expensive and can also increase the risk of failure. If the flux is not added correctly, it can cause the weld to be porous or brittle. Additionally, the flux can create fumes that can be harmful to the welder's health.

SAW is a versatile welding process that can be used for a variety of applications, including welding steel pipes, beams, and plates. However, the requirement for continuous flux addition is a major limitation of the process.

The other options are not correct. SAW can be used in a variety of positions, including overhead and horizontal. It can also be used for joining materials with thicknesses less than 5mm. Additionally, SAW can be used for welding other metals besides steel, such as stainless steel and aluminum.