The learner will demonstrate knowledge of quality control and inspection for GMAW.
Setting the welding voltage too high without using enough wire feed speed causes ______________.
Setting the welding voltage too high without using enough wire feed speed causes ______________.
undercutting
Setting the welding voltage too high without using enough wire feed speed causes ______________.
undercutting
A too-large weld puddle from traveling too slowly causes _____________.
A too-large weld puddle from traveling too slowly causes _____________.
incomplete joint penetration
A too-large weld puddle from traveling too slowly causes _____________.
incomplete joint penetration
Improper gun angle causes ____________.
Improper gun angle causes ____________.
undercutting
Gas contamination causes ________________.
Gas contamination causes ________________.
porosity
Insufficient heat input causes _____________.
Insufficient heat input causes _____________.
incomplete fusion
Insufficient heat input causes _____________.
incomplete fusion
Work-piece contamination causes _____________.
Work-piece contamination causes _____________.
porosity
Excessive heat (both amperage and voltage) input causes _____________.
Excessive heat (both amperage and voltage) input causes _____________.
excessive melt-through
Excessive heat (both amperage and voltage) input causes _____________.
excessive melt-through
Hardening in the heat-affected zone causes ___________.
Hardening in the heat-affected zone causes ___________.
HAZ cracks
Hardening in the heat-affected zone causes ___________.
HAZ cracks
Rapid cooling in the crater at the end of the joint causes ___________________.
Rapid cooling in the crater at the end of the joint causes ___________________.
weld metal cracks
Rapid cooling in the crater at the end of the joint causes ___________________.
weld metal cracks
You have answered 5 of 10 questions correctly.
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