General Studies · Welding
Identify the solid-state welding processes from the list below that involve the use of heat from an external source: P: Diffusion welding Q: Friction welding R: Ultrasonic welding S: Forge welding
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1P and S✓
- 2Q and S
- 3R and S
- 4P and R
Correct answer
P and S
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