Delaware Welder Qualification
Examination Practice Exam 2026 | 100+
Questions & Answers with Detailed
Rationales | Complete Delaware
Welder Qualification Test Prep, Study
Guide & Exam Review
1. What is the primary purpose of a welder performance qualification test?
Answer: To demonstrate that the welder can produce sound welds using a
specified process and procedure
Rationale: A performance qualification test evaluates the welder's ability to
consistently produce acceptable welds under specified conditions.
2. Which organization publishes the AWS D1.1 Structural Welding Code—
Steel?
Answer: American Welding Society
Rationale: AWS publishes D1.1, which establishes requirements for welding
structural steel and related welder qualification activities.
, 3. Which ASME code section is primarily associated with welding and brazing
qualifications?
Answer: ASME Section IX
Rationale: Section IX establishes qualification requirements for welding and
brazing procedures and personnel.
4. What does SMAW stand for?
Answer: Shielded Metal Arc Welding
Rationale: SMAW uses a flux-coated consumable electrode to establish an arc
and provide shielding during welding.
5. What is another common name for SMAW?
Answer: Stick welding
Rationale: SMAW is commonly called stick welding because the electrode is a
flux-coated welding rod.
6. What is the primary purpose of electrode flux in SMAW?
Answer: To provide shielding and form slag
Rationale: Flux produces gases and slag that protect molten metal from
atmospheric contamination and help shape the weld.
7. What does GMAW stand for?
Answer: Gas Metal Arc Welding
Rationale: GMAW uses a continuously fed consumable wire electrode and an
externally supplied shielding gas.
8. What is commonly called MIG welding?
Answer: GMAW
, Rationale: MIG is a common industry term for gas metal arc welding, although
GMAW includes several shielding-gas and transfer variations.
9. What does GTAW stand for?
Answer: Gas Tungsten Arc Welding
Rationale: GTAW uses a nonconsumable tungsten electrode and shielding gas to
protect the weld area.
10.What is another common name for GTAW?
Answer: TIG welding
Rationale: TIG is the common shop term for gas tungsten arc welding.
11.What does FCAW stand for?
Answer: Flux Cored Arc Welding
Rationale: FCAW uses a tubular electrode containing flux, with some variations
also using external shielding gas.
12.What is the purpose of shielding gas in GMAW?
Answer: To protect the molten weld pool from atmospheric contamination
Rationale: Oxygen, nitrogen, and moisture from the atmosphere can cause
porosity, oxidation, and other weld defects.
13.What gas mixture is commonly used for GMAW of carbon steel?
Answer: Argon-carbon dioxide mixtures
Rationale: Argon/CO₂ mixtures are widely used for carbon-steel GMAW because
they provide useful arc characteristics and penetration.
14.What is the main purpose of preheating before welding?
Answer: To reduce the cooling rate and help prevent cracking
Examination Practice Exam 2026 | 100+
Questions & Answers with Detailed
Rationales | Complete Delaware
Welder Qualification Test Prep, Study
Guide & Exam Review
1. What is the primary purpose of a welder performance qualification test?
Answer: To demonstrate that the welder can produce sound welds using a
specified process and procedure
Rationale: A performance qualification test evaluates the welder's ability to
consistently produce acceptable welds under specified conditions.
2. Which organization publishes the AWS D1.1 Structural Welding Code—
Steel?
Answer: American Welding Society
Rationale: AWS publishes D1.1, which establishes requirements for welding
structural steel and related welder qualification activities.
, 3. Which ASME code section is primarily associated with welding and brazing
qualifications?
Answer: ASME Section IX
Rationale: Section IX establishes qualification requirements for welding and
brazing procedures and personnel.
4. What does SMAW stand for?
Answer: Shielded Metal Arc Welding
Rationale: SMAW uses a flux-coated consumable electrode to establish an arc
and provide shielding during welding.
5. What is another common name for SMAW?
Answer: Stick welding
Rationale: SMAW is commonly called stick welding because the electrode is a
flux-coated welding rod.
6. What is the primary purpose of electrode flux in SMAW?
Answer: To provide shielding and form slag
Rationale: Flux produces gases and slag that protect molten metal from
atmospheric contamination and help shape the weld.
7. What does GMAW stand for?
Answer: Gas Metal Arc Welding
Rationale: GMAW uses a continuously fed consumable wire electrode and an
externally supplied shielding gas.
8. What is commonly called MIG welding?
Answer: GMAW
, Rationale: MIG is a common industry term for gas metal arc welding, although
GMAW includes several shielding-gas and transfer variations.
9. What does GTAW stand for?
Answer: Gas Tungsten Arc Welding
Rationale: GTAW uses a nonconsumable tungsten electrode and shielding gas to
protect the weld area.
10.What is another common name for GTAW?
Answer: TIG welding
Rationale: TIG is the common shop term for gas tungsten arc welding.
11.What does FCAW stand for?
Answer: Flux Cored Arc Welding
Rationale: FCAW uses a tubular electrode containing flux, with some variations
also using external shielding gas.
12.What is the purpose of shielding gas in GMAW?
Answer: To protect the molten weld pool from atmospheric contamination
Rationale: Oxygen, nitrogen, and moisture from the atmosphere can cause
porosity, oxidation, and other weld defects.
13.What gas mixture is commonly used for GMAW of carbon steel?
Answer: Argon-carbon dioxide mixtures
Rationale: Argon/CO₂ mixtures are widely used for carbon-steel GMAW because
they provide useful arc characteristics and penetration.
14.What is the main purpose of preheating before welding?
Answer: To reduce the cooling rate and help prevent cracking
