Back
31: Know and Understand
In the GTAW process, the welder typically uses one hand to manipulate the torch and the other to feed _____ into the weld pool.
The GTAW process is most often used to weld what types of metals?
A foot pedal or thumb switch can be used by the welder to vary the _____.
Why is alternating current used for welding aluminum?
As the collet is pressed into the collet body, it forms a tight grip to hold the _____ in the torch.
List three reasons why argon is most commonly used as a shielding gas for GTAW.
Tungsten electrodes coded with a gold band are _____ electrodes.
A. thoriated
B. ceriated
C. pure tungsten
D. lanthanated
Why should the flow rate for GTAW be just enough to protect the weld?
A(n) _____ cone tip is used for welding stainless with DC welding processes.
Although a minimum shade of #______ is required for welding helmets worn for gas metal arc welding, a darker shade should be used if the visibility is adequate.
To reduce the chance of electric shock, the _____ electrode holder should be disconnected from dual or multiprocess machines prior to GTAW welding.
Inert gases can _____ breathing air in enclosed spaces.
List three types of contaminants that must be cleaned from bare metal before it is welded.
The tilt of the torch in relation to the direction of travel is called the _____.
A. travel speed
B. travel angle
C. work angle
D. arc length
The inside diameter of the shielding gas nozzle should be at least _____ times the diameter of the tungsten electrode to allow for adequate shielding gas flow.
The tip of the filler metal should be kept within the gaseous shield at all times while welding, but never allowed to make contact with the _____.
Describe how an arc is started using the lift start method.
Compared to other metals, _____ has more subtle color changes when subjected to welding temperatures and a narrow window of working temperatures.
Your Name
Your E-mail
Send yourself a copy
Your Instructor's E-mail
Additional Recipient's E-mail (optional)
Comments
I confirm my input is correct and am ready to submit