Final answer:
The correct answer to the question of which electrode is typically used for Submerged Arc Welding (SAW) is EM12K.
Step-by-step explanation:
The electrode typically used for Submerged Arc Welding (SAW) is EM12K. This type of electrode is utilized in the SAW process, where the weld and arc zone are submerged under a blanket of granular fusible flux. This helps to protect the molten weld from atmospheric contamination.
The options given in the question relate to different types of electrodes and filler materials, each with specific applications and alloy content. While E347T-3, E120T5-G, and E90T1-D3 are also types of electrodes or filler wires, EM12K is the correct answer for the electrode typically used in SAW.