GTAW Test Questions with Correct Answers Latest Update 2025
Gas Tungsten Arc Welding - Answers What does GTAW stand for?
Constant Current - Answers What type of power source does GTAW require?
AC - Answers What polarity should be used for Aluminum and Magnesium?
DC- - Answers What polarity is used for most other metals besides Aluminum and Magnesium?
DC+ - Answers What polarity is rarely ever used?
Gas Tungsten Arc Welding - Answers An arc welding process that uses an arc between a tungsten
electrode (non-consumable) and the weld pool. The process is used with shield gas (or gas mixture) from
an externally supplied source and without an application of pressure.
1. High quality welds
2. All Position welding
3. Can be used on a variety of metals
4. excellent on very thin materials
5. Fusion welding is possible
6. No slat
7. No splatter
8. High efficiency - Answers What are the advantages of tig welding?
1. Portability
2. outdoor welding
3. requires clean base metal
4. low deposition rates
5. High operator skill necessary
6. often slow - Answers What are the limitations of tig?
1. Backcap
2. Handle
, 3. Collet
4. Collet Body
5. Nozzle
6. Electrode - Answers Name the 6 parts of the tig torch
1. Heat concentrated at work piece
2. Deep, narrow penetration
3. Excellent Electrode Current Capacity - Answers What features does DCEN have when using Tig?
1. Heat concentrated at electrode
2. shallow penetration
3. oxide cleaning
4. poor electrode current capacity - Answers What features does DCEP have when using tig?
1. 50% of heat at plate
2. 50% of heat at electrode
3. medium penetration
4. oxide cleaning once every half cycle
5. good electrode current capacity - Answers What features does AC polarity have when using tig?
1. Precise control of arc
2. Reduce weld size
3. Reduce change over time
4. 2% thoriated tungsten
5. weld thinner materials easier
6. weld thicker materials faster
7. minimize cleaning zone - Answers What are the advantages of AC inverter technology?
High Frequency - Answers An elevated frequency superimposed over the welding current
1. Allows arc starts without touching the electrode to the work
Gas Tungsten Arc Welding - Answers What does GTAW stand for?
Constant Current - Answers What type of power source does GTAW require?
AC - Answers What polarity should be used for Aluminum and Magnesium?
DC- - Answers What polarity is used for most other metals besides Aluminum and Magnesium?
DC+ - Answers What polarity is rarely ever used?
Gas Tungsten Arc Welding - Answers An arc welding process that uses an arc between a tungsten
electrode (non-consumable) and the weld pool. The process is used with shield gas (or gas mixture) from
an externally supplied source and without an application of pressure.
1. High quality welds
2. All Position welding
3. Can be used on a variety of metals
4. excellent on very thin materials
5. Fusion welding is possible
6. No slat
7. No splatter
8. High efficiency - Answers What are the advantages of tig welding?
1. Portability
2. outdoor welding
3. requires clean base metal
4. low deposition rates
5. High operator skill necessary
6. often slow - Answers What are the limitations of tig?
1. Backcap
2. Handle
, 3. Collet
4. Collet Body
5. Nozzle
6. Electrode - Answers Name the 6 parts of the tig torch
1. Heat concentrated at work piece
2. Deep, narrow penetration
3. Excellent Electrode Current Capacity - Answers What features does DCEN have when using Tig?
1. Heat concentrated at electrode
2. shallow penetration
3. oxide cleaning
4. poor electrode current capacity - Answers What features does DCEP have when using tig?
1. 50% of heat at plate
2. 50% of heat at electrode
3. medium penetration
4. oxide cleaning once every half cycle
5. good electrode current capacity - Answers What features does AC polarity have when using tig?
1. Precise control of arc
2. Reduce weld size
3. Reduce change over time
4. 2% thoriated tungsten
5. weld thinner materials easier
6. weld thicker materials faster
7. minimize cleaning zone - Answers What are the advantages of AC inverter technology?
High Frequency - Answers An elevated frequency superimposed over the welding current
1. Allows arc starts without touching the electrode to the work
