Quiz - 11

Question 1

What effect on the welding current does increasing the wire feed speed have:

Answer 1

Increased Amperage

Question 2

What reactive gases are used with argon for GMA welding on steels:

Answer 2

Oxygen or Carbon dioxide
Carbon Dioxide
(both A and B)

Question 3

What is the effect on the weld of changing the welding angle from a dragging angle to a pushing angle:

Answer 3

The more the pushing angle the shallower the weld penetration and less the build up

Question 4

Wire feed speed is measured in:

Answer 4

IPM (inches per minute)

Question 5

Which of the following are not factors in selecting the right gas for a weld:

• Arc length
• Metal transfer characteristics
• Weld penetration
• Width of fusion zone
• Surface shape patterns
• Welding speed
• Undercut tendency
• The colour of the weld

Answer 5

Arc length
Welding speed
The colour of the weld

Question 6

T / F: Pure Argon and Helium produce flaws on ferrous metals

Answer 6

True

Question 7

Adding oxygen or CO2 to an inert gas shielding:

Answer 7

DOESN'T:
-Cause shielding gas to become oxidizing
-Cause porosity in some ferrous metals
-Cause loss of alloying elements
(none of the above was the answer on the quiz)

Question 8

T / F: Slight changes in welding gun angle and electrode extension make significant differences in weld quality

Answer 8

True

Question 9

Which are major advantages of down vertical welding:

Answer 9

Speed
Shallow penetration
Bead looks good

Question 10

T / F: Welding current changes as distance between contact tube and work changes

Answer 10

True