TEXAS WELDING CERTIFICATION EXAM – PRACTICE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
*Core Domains*
*Safety and Health in Welding Processes*
*Shielded Metal Arc Welding (SMAW) Theory*
*Gas Metal/Tungsten Arc Welding (GMAW/GTAW)*
*Blueprint Reading and Symbols*
*Metallurgy and Material Science*
*Visual Inspection and Quality Control*
*Cutting Processes and Gouging*
*Texas State Regulatory Requirements*
*Introduction*
This practice assessment is designed to evaluate a candidate’s readiness for the Texas
Welding Certification Exam. The purpose of this exam is to ensure that welding
professionals possess the technical proficiency, safety awareness, and regulatory
knowledge required to operate within the state. The assessment covers foundational
theory, scenario-based decision-making, and critical safety standards. Candidates will be
tested on their ability to interpret blueprints, select appropriate filler metals, and apply
welding techniques across various positions. The structure consists of multiple-choice
questions that reflect real-world applications and professional standards necessary for
high-quality, code-compliant fabrication and construction.
, SECTION ONE
1. What is the primary purpose of the flux coating on a SMAW electrode?
A. To increase the weight of the electrode for better penetration
B. To provide a shielding gas to protect the molten weld pool
C. To act as a primary conductor for the electrical arc
D. To prevent the base metal from overheating
🟢 B. To provide a shielding gas to protect the molten weld pool
🔴 RATIONALE: The flux coating decomposes under the heat of the arc to create a
gaseous shield that protects the weld from atmospheric contamination.
2. Which shade of filter lens is generally recommended for SMAW operations using
1/8-inch electrodes at 120 amps?
A. Shade 5
B. Shade 8
C. Shade 10
D. Shade 14
🟢 C. Shade 10
🔴 RATIONALE: According to OSHA and ANSI safety standards, a Shade 10 lens is the
minimum requirement for most common arc welding currents between 75 and 200
amps.
3. In a welding blueprint, the tail of the welding symbol is used for what purpose?
,A. To indicate the size of the weld
B. To show the direction of the welding travel
C. To provide information on the welding process or specifications
D. To denote the length of the weld increment
🟢 C. To provide information on the welding process or specifications
🔴 RATIONALE: The tail is an optional element used to reference specific welding
processes, procedures, or other supplementary information.
4. A welder is performing a 3G certification test. What position does this represent?
A. Flat groove
B. Horizontal groove
C. Vertical groove
D. Overhead groove
🟢 C. Vertical groove
🔴 RATIONALE: In plate welding nomenclature, 1G is flat, 2G is horizontal, 3G is
vertical, and 4G is overhead.
5. Which of the following discontinuities is most likely caused by a travel speed that
is too fast?
A. Undercut
B. Porosity
C. Overlap
D. Excessive reinforcement
, 🟢 A. Undercut
🔴 RATIONALE: High travel speeds do not allow the molten filler metal to fill the
edges of the weld path, leaving a groove melted into the base metal.
6. What is the standard voltage for a constant current (CC) power source when the
arc is not struck?
A. Working voltage
B. Open circuit voltage
C. Arc voltage
D. Rated output voltage
🟢 B. Open circuit voltage
🔴 RATIONALE: Open circuit voltage (OCV) is the voltage at the output terminals when
the welding machine is on but no welding is occurring.
7. Which gas is most commonly used as a shielding gas for Gas Tungsten Arc
Welding (GTAW) on carbon steel?
A. 100% Argon
B. 75% Argon / 25% CO2
C. 100% Carbon Dioxide
D. 95% Argon / 5% Oxygen
🟢 A. 100% Argon
🔴 RATIONALE: Argon is the preferred inert shielding gas for GTAW because it
provides excellent arc stability and protection for the tungsten electrode.
8. When using an E7018 electrode, the "70" represents what property?
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
*Core Domains*
*Safety and Health in Welding Processes*
*Shielded Metal Arc Welding (SMAW) Theory*
*Gas Metal/Tungsten Arc Welding (GMAW/GTAW)*
*Blueprint Reading and Symbols*
*Metallurgy and Material Science*
*Visual Inspection and Quality Control*
*Cutting Processes and Gouging*
*Texas State Regulatory Requirements*
*Introduction*
This practice assessment is designed to evaluate a candidate’s readiness for the Texas
Welding Certification Exam. The purpose of this exam is to ensure that welding
professionals possess the technical proficiency, safety awareness, and regulatory
knowledge required to operate within the state. The assessment covers foundational
theory, scenario-based decision-making, and critical safety standards. Candidates will be
tested on their ability to interpret blueprints, select appropriate filler metals, and apply
welding techniques across various positions. The structure consists of multiple-choice
questions that reflect real-world applications and professional standards necessary for
high-quality, code-compliant fabrication and construction.
, SECTION ONE
1. What is the primary purpose of the flux coating on a SMAW electrode?
A. To increase the weight of the electrode for better penetration
B. To provide a shielding gas to protect the molten weld pool
C. To act as a primary conductor for the electrical arc
D. To prevent the base metal from overheating
🟢 B. To provide a shielding gas to protect the molten weld pool
🔴 RATIONALE: The flux coating decomposes under the heat of the arc to create a
gaseous shield that protects the weld from atmospheric contamination.
2. Which shade of filter lens is generally recommended for SMAW operations using
1/8-inch electrodes at 120 amps?
A. Shade 5
B. Shade 8
C. Shade 10
D. Shade 14
🟢 C. Shade 10
🔴 RATIONALE: According to OSHA and ANSI safety standards, a Shade 10 lens is the
minimum requirement for most common arc welding currents between 75 and 200
amps.
3. In a welding blueprint, the tail of the welding symbol is used for what purpose?
,A. To indicate the size of the weld
B. To show the direction of the welding travel
C. To provide information on the welding process or specifications
D. To denote the length of the weld increment
🟢 C. To provide information on the welding process or specifications
🔴 RATIONALE: The tail is an optional element used to reference specific welding
processes, procedures, or other supplementary information.
4. A welder is performing a 3G certification test. What position does this represent?
A. Flat groove
B. Horizontal groove
C. Vertical groove
D. Overhead groove
🟢 C. Vertical groove
🔴 RATIONALE: In plate welding nomenclature, 1G is flat, 2G is horizontal, 3G is
vertical, and 4G is overhead.
5. Which of the following discontinuities is most likely caused by a travel speed that
is too fast?
A. Undercut
B. Porosity
C. Overlap
D. Excessive reinforcement
, 🟢 A. Undercut
🔴 RATIONALE: High travel speeds do not allow the molten filler metal to fill the
edges of the weld path, leaving a groove melted into the base metal.
6. What is the standard voltage for a constant current (CC) power source when the
arc is not struck?
A. Working voltage
B. Open circuit voltage
C. Arc voltage
D. Rated output voltage
🟢 B. Open circuit voltage
🔴 RATIONALE: Open circuit voltage (OCV) is the voltage at the output terminals when
the welding machine is on but no welding is occurring.
7. Which gas is most commonly used as a shielding gas for Gas Tungsten Arc
Welding (GTAW) on carbon steel?
A. 100% Argon
B. 75% Argon / 25% CO2
C. 100% Carbon Dioxide
D. 95% Argon / 5% Oxygen
🟢 A. 100% Argon
🔴 RATIONALE: Argon is the preferred inert shielding gas for GTAW because it
provides excellent arc stability and protection for the tungsten electrode.
8. When using an E7018 electrode, the "70" represents what property?
