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TIG Welding final exam Questions and Answers

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Which of the following methods is used to start a TIG arc without touching base metal ? - ️️High frequency start How long should post purge be allowed to flow after welding arc is broken ? - ️️Long enough for base metal and electrode to cool When using TIG to weld aluminum with AC the tip of tungsten electrode should be ? - ️️Rounded at tip High frequency is added to alternated current to ? - ️️Maintain the arc If tungsten splitting occurs what may be done to solve the problem ? - ️️All of the above EWT+1-2 electrode is ? - ️️Thoriated Chemical symbol for tungsten ? - ️️W When GTAW power source is set to DCEP ? - ️️Most of heat is on electrode TIG is common referred to tungsten inert gas or helio-arc welding - ️️True You must always use fuller metal with TIG process ? - ️️False

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Uploaded on
November 9, 2024
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2024/2025
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TIG Welding final exam
Which of the following methods is used to start a TIG arc without touching base metal ?
- ✔️✔️High frequency start

How long should post purge be allowed to flow after welding arc is broken ? -
✔️✔️Long enough for base metal and electrode to cool

When using TIG to weld aluminum with AC the tip of tungsten electrode should be ? -
✔️✔️Rounded at tip

High frequency is added to alternated current to ? - ✔️✔️Maintain the arc

If tungsten splitting occurs what may be done to solve the problem ? - ✔️✔️All of the
above

EWT+1-2 electrode is ? - ✔️✔️Thoriated

Chemical symbol for tungsten ? - ✔️✔️W

When GTAW power source is set to DCEP ? - ✔️✔️Most of heat is on electrode

TIG is common referred to tungsten inert gas or helio-arc welding - ✔️✔️True

You must always use fuller metal with TIG process ? - ✔️✔️False

As a general rule, inside of diameter of gas nozzle should be ? - ✔️✔️3x electrode
diameter

Filler metal er4043 is used to weld ? - ✔️✔️Aluminum

Shielding has most commonly used in TIG is ? - ✔️✔️Argon

AC is used for aluminum welding because ? - ✔️✔️Cleaning action

GTAW produces no spatter and requires minimum cleaning - ✔️✔️



TIG good for high quality and variety of metals - ✔️✔️True

EWP indicates pure tungsten - ✔️✔️True
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