Quiz 3 (125)

what causes porosity

• Lack of gas coverage

• Improper bead placement

• Poor gun angle

• Slow travel speed

This picture shows

• Under cut

• Porosity

• Inadequate penetration

• Underfill

This picture shows

• Inadequate penetration

• Underfill

• Porosity

• Undercut

What can cause undercut

• increasing amperage

• Reducing travel speed

• Poor gun angle

• Increase WFS

What occurs when there is a lack of metal along the toes of the weld

• Porosity

• Undercut

• Underfill

• Cold lap

proper bead placement is a cure for

• Underfill

• Undercut

• Porosity

• Cold lap

Increasing you amperage could cure

• Underfill

• Lack of penetration

• Incomplete fusion

• Undercut

Excessive Reinforcement can be caused by

• Lack of penetration

• Improper cleaning

• Improper bead placement

• Slag inclusion

Improper cleaning can cause

• Slag inclusion

• Improper fusion

• Porosity

• Reinforcement

Vertical 3F can be done with___and/ or ____ beads

• Stringer and weave

• wet and stringer

• Stringer and lock

• Horizontal stringer and vertical weave