Deck 15: Gas Metal Arc and Flux Cored Arc Welding Aws Sense Certification

Question 1

What GMAW process is used to make the welds on the 10 gauge to 14 gauge thick carbon steel joints?

A) GMAW-S
B) GMAW-P
C) GMAW-G
D) GMAW-spray metal arc transfer

Answer 1

A

Question 2

What is the maximum width of the weld cover pass?

A) 3/32-in. (2.4 mm)
B) 1/8-in. (3 mm)
C) 1/4-in. (6 mm)
D) 1/16-in. (1.6 mm)

Answer 2

B

Question 3

P reheating a weldment in cold weather is said to be ____________________.

Answer 3

drying out the plates

Question 4

What is the maximum incomplete fusion that is allowed for a visual inspection?

A) 1/64 in. (0.4 mm)
B) 1/32 in. (0.8 mm)
C) 3/32 in. (2.4 mm)
D) No incomplete fusion allowed

Question 5

Explain how to bend test the strips cut from the 10 gauge to 14 gauge carbon steel sheet metal.

Question 6

What is the maximum undercut that is allowed for a visual inspection?

A) 1/64 in. (0.4 mm)
B) 1/32 in. (0.8 mm)
C) 3/32 in. (2.4 mm)
D) No incomplete fusion allowed

Question 7

What is the approximate size that the root face on a beveled edge should be ground to?

A) 1/64-in. (0.4 mm) to 1/32-in. (0.8 mm)
B) 1/16-in. (1.6 mm) to 1/8-in. (3 mm)
C) 1/4-in. (6 mm) to 5/16-in. (8 mm)
D) 0-in. (0 mm)

Question 8

What is the maximum temperature that the base metal can be at while it is being welded?

A) 50°F (10°C)
B) 100°F (38°C)
C) 150°F (65°C)
D) 350°F (175°C)

Question 9

Which of the following would not be part of the information that would be included on a qualification test?

A) Filler metal
B) Shielding gas
C) Type of joint
D) R ight- or left-handed welder

Question 10

When preheating cold metal with an oxyfuel flame, you may see _____.

A) excessive spatter
B) slag buildup
C) water condensing on the surface
D) control problems such as undercut

Question 11

What cautions should be taken when welding on a pipe joint in a fixed position?

Question 12

Explain the acceptance criteria for a bend test.

Question 13

What is the maximum crack size that is allowed for a visual inspection?

A) 1/64 in. (0.4 mm)
B) 1/32 in. (0.8 mm)
C) 3/32 in. (2.4 mm)
D) No cracks allowed

Question 14

What would be an acceptable shielding gas mixture of argon (Ar) and oxygen (O) for GMA welds?

A) Ar + 2% O₂
B) Ar + 1% O₂
C) Ar + 7% O₂
D) Ar + 0% O₂

Question 15

What is the maximum size of porosity that is allowed for a visual inspection?

A) 1/64 in. (0.4 mm)
B) 1/32 in. (0.8 mm)
C) 3/32 in. (2.4 mm)
D) No porosity allowed

Question 16

Describe how the weld beads on a test plate should be cleaned.

Question 17

What should be watched for as an indication that the root pass is getting 100% penetration?