Welding Flashcards
6 cards from real Other Skilled Trades practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Welding flashcards as text
What does a convex weld bead profile indicate?
Answer: The weld has insufficient heat or travel speed was too fast
A convex (high-crowned) bead typically indicates insufficient heat input or travel speed that was too fast, resulting in poor fusion and a weak weld profile.
Which electrode is used for welding stainless steel with the SMAW process?
Answer: E308-16
E308-16 is a stainless steel electrode designed for welding 304 stainless steel using the SMAW (Stick) process.
What is the term for the groove melted into the base metal along the weld toe, reducing the cross-section of the base material?
Answer: Undercut
Undercut is a groove melted into the base metal at the weld toe that reduces the effective cross-section and creates a stress concentration point.
When qualifying a welder under AWS D1.1, passing a 3G vertical position test also qualifies the welder for which position?
Answer: 1G flat and 2G horizontal
Under AWS D1.1, a welder who passes the 3G (vertical) qualification test is also qualified to weld in the 1G (flat) and 2G (horizontal) positions.
What type of polarity is typically used for SMAW welding with E7018 electrodes?
Answer: DCEP (Direct Current Electrode Positive)
E7018 electrodes are designed to run on DCEP (reverse polarity), which puts more heat into the electrode for better deposition and penetration.
What is the purpose of a preheat and interpass temperature in multi-pass welding of thick steel?
Answer: To maintain minimum temperature to prevent hydrogen cracking between passes
Maintaining minimum interpass temperature ensures the weld area stays warm enough to prevent hydrogen-induced cracking as each pass is completed.