Other Skilled Trades Welding 3

Question 1

What does a convex weld bead profile indicate?

Accepted Answer

The weld has insufficient heat or travel speed was too fast

Answer

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.

Question 2

Which electrode is used for welding stainless steel with the SMAW process?

Accepted Answer

E308-16

Answer

E308-16 is a stainless steel electrode designed for welding 304 stainless steel using the SMAW (Stick) process.

Question 3

What is the term for the groove melted into the base metal along the weld toe, reducing the cross-section of the base material?

Accepted Answer

Undercut

Answer

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.

Question 4

When qualifying a welder under AWS D1.1, passing a 3G vertical position test also qualifies the welder for which position?

Accepted Answer

1G flat and 2G horizontal

Answer

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.

Question 5

What type of polarity is typically used for SMAW welding with E7018 electrodes?

Accepted Answer

DCEP (Direct Current Electrode Positive)

Answer

E7018 electrodes are designed to run on DCEP (reverse polarity), which puts more heat into the electrode for better deposition and penetration.

Other Skilled Trades Practice Test

Other Skilled Trades Practice Test

Other Skilled Trades Welding 3