TEXAS CERTIFIED WELDER
CERTIFICATION EXAM WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. A welder is preparing to perform a Shielded Metal Arc Welding
(SMAW) weld on ASTM A36 carbon steel using an E7018
electrode. The rods have been exposed to humid air for several
days. What is the best course of action before welding?
A. Dip the electrodes in water before use.
B. Bake the electrodes in a rod oven according to the manufacturer's
recommendation.
C. Use them immediately because moisture has no effect.
D. Remove the flux coating before welding.
Answer: B. Bake the electrodes in a rod oven according to the
manufacturer's recommendation.
Rationale: E7018 is a low-hydrogen electrode designed to minimize
hydrogen-induced cracking. Moisture absorbed into the flux introduces
hydrogen into the weld, increasing the risk of delayed cracking,
especially in restrained joints and thicker materials. Baking restores the
electrodes by driving off absorbed moisture according to manufacturer
specifications.
2. During a Gas Metal Arc Welding (GMAW) operation, excessive
weld spatter suddenly develops while welding mild steel. Which
condition is the most likely cause?
1
,A. Wire feed speed is too high relative to voltage.
B. Travel speed is too slow.
C. Electrode extension is too short.
D. Shielding gas flow is excessive.
Answer: A. Wire feed speed is too high relative to voltage.
Rationale: An excessively high wire feed speed compared to arc voltage
creates an unstable arc, causing irregular metal transfer and excessive
spatter. Proper balance between voltage and wire feed speed ensures
smooth metal transfer.
3. According to common welding safety practices, what is the
primary purpose of local exhaust ventilation during welding?
A. Cool the welder.
B. Prevent electrode overheating.
C. Remove hazardous welding fumes from the breathing zone.
D. Increase welding speed.
Answer: C. Remove hazardous welding fumes from the breathing
zone.
Rationale: Local exhaust ventilation captures fumes directly at their
source, reducing exposure to hazardous airborne contaminants such as
manganese, chromium, and ozone generated during welding.
4. Which electrode is specifically designed for welding in all
positions with excellent crack resistance and approximately 70,000
psi tensile strength?
A. E6010
B. E6013
C. E7018
D. E7024
Answer: C. E7018
2
,Rationale: E7018 provides approximately 70 ksi tensile strength, low
hydrogen characteristics, excellent mechanical properties, and all-
position capability, making it one of the most widely specified structural
electrodes.
5. A welder observes undercut along both sides of the weld bead.
Which adjustment would most likely reduce undercut?
A. Increase travel speed.
B. Reduce welding current or slow travel slightly.
C. Increase electrode diameter.
D. Increase arc length.
Answer: B. Reduce welding current or slow travel slightly.
Rationale: Undercut results from excessive melting of the base metal
without adequate filler deposition. Lowering amperage and slightly
reducing travel speed allows sufficient filler metal to fill the groove.
6. What is the principal function of welding flux?
A. Increase electrical resistance.
B. Prevent shielding gas flow.
C. Protect molten weld metal from atmospheric contamination.
D. Increase base metal hardness.
Answer: C. Protect molten weld metal from atmospheric
contamination.
Rationale: Flux forms shielding gases and slag that isolate molten weld
metal from oxygen, nitrogen, and hydrogen, preventing porosity and
oxidation.
7. Which welding process generally provides the highest deposition
rate for thick carbon steel fabrication?
A. SMAW
B. GTAW
3
, C. FCAW
D. Oxyfuel welding
Answer: C. FCAW
Rationale: Flux-Cored Arc Welding offers high deposition rates and
excellent productivity, making it well suited for heavy structural
fabrication.
8. What defect is characterized by gas pockets trapped within
solidified weld metal?
A. Lack of fusion
B. Undercut
C. Porosity
D. Overlap
Answer: C. Porosity
Rationale: Porosity occurs when gases become trapped during weld
solidification due to contamination, poor shielding, moisture, or
improper parameters.
9. Which polarity is commonly used with E6010 electrodes?
A. AC only
B. DCEN
C. DCEP
D. Alternating DC
Answer: C. DCEP
Rationale: E6010 electrodes are designed primarily for direct current
electrode positive (reverse polarity), providing deep penetration and a
forceful arc.
10. Why should welding cylinders always be secured upright?
4
CERTIFICATION EXAM WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. A welder is preparing to perform a Shielded Metal Arc Welding
(SMAW) weld on ASTM A36 carbon steel using an E7018
electrode. The rods have been exposed to humid air for several
days. What is the best course of action before welding?
A. Dip the electrodes in water before use.
B. Bake the electrodes in a rod oven according to the manufacturer's
recommendation.
C. Use them immediately because moisture has no effect.
D. Remove the flux coating before welding.
Answer: B. Bake the electrodes in a rod oven according to the
manufacturer's recommendation.
Rationale: E7018 is a low-hydrogen electrode designed to minimize
hydrogen-induced cracking. Moisture absorbed into the flux introduces
hydrogen into the weld, increasing the risk of delayed cracking,
especially in restrained joints and thicker materials. Baking restores the
electrodes by driving off absorbed moisture according to manufacturer
specifications.
2. During a Gas Metal Arc Welding (GMAW) operation, excessive
weld spatter suddenly develops while welding mild steel. Which
condition is the most likely cause?
1
,A. Wire feed speed is too high relative to voltage.
B. Travel speed is too slow.
C. Electrode extension is too short.
D. Shielding gas flow is excessive.
Answer: A. Wire feed speed is too high relative to voltage.
Rationale: An excessively high wire feed speed compared to arc voltage
creates an unstable arc, causing irregular metal transfer and excessive
spatter. Proper balance between voltage and wire feed speed ensures
smooth metal transfer.
3. According to common welding safety practices, what is the
primary purpose of local exhaust ventilation during welding?
A. Cool the welder.
B. Prevent electrode overheating.
C. Remove hazardous welding fumes from the breathing zone.
D. Increase welding speed.
Answer: C. Remove hazardous welding fumes from the breathing
zone.
Rationale: Local exhaust ventilation captures fumes directly at their
source, reducing exposure to hazardous airborne contaminants such as
manganese, chromium, and ozone generated during welding.
4. Which electrode is specifically designed for welding in all
positions with excellent crack resistance and approximately 70,000
psi tensile strength?
A. E6010
B. E6013
C. E7018
D. E7024
Answer: C. E7018
2
,Rationale: E7018 provides approximately 70 ksi tensile strength, low
hydrogen characteristics, excellent mechanical properties, and all-
position capability, making it one of the most widely specified structural
electrodes.
5. A welder observes undercut along both sides of the weld bead.
Which adjustment would most likely reduce undercut?
A. Increase travel speed.
B. Reduce welding current or slow travel slightly.
C. Increase electrode diameter.
D. Increase arc length.
Answer: B. Reduce welding current or slow travel slightly.
Rationale: Undercut results from excessive melting of the base metal
without adequate filler deposition. Lowering amperage and slightly
reducing travel speed allows sufficient filler metal to fill the groove.
6. What is the principal function of welding flux?
A. Increase electrical resistance.
B. Prevent shielding gas flow.
C. Protect molten weld metal from atmospheric contamination.
D. Increase base metal hardness.
Answer: C. Protect molten weld metal from atmospheric
contamination.
Rationale: Flux forms shielding gases and slag that isolate molten weld
metal from oxygen, nitrogen, and hydrogen, preventing porosity and
oxidation.
7. Which welding process generally provides the highest deposition
rate for thick carbon steel fabrication?
A. SMAW
B. GTAW
3
, C. FCAW
D. Oxyfuel welding
Answer: C. FCAW
Rationale: Flux-Cored Arc Welding offers high deposition rates and
excellent productivity, making it well suited for heavy structural
fabrication.
8. What defect is characterized by gas pockets trapped within
solidified weld metal?
A. Lack of fusion
B. Undercut
C. Porosity
D. Overlap
Answer: C. Porosity
Rationale: Porosity occurs when gases become trapped during weld
solidification due to contamination, poor shielding, moisture, or
improper parameters.
9. Which polarity is commonly used with E6010 electrodes?
A. AC only
B. DCEN
C. DCEP
D. Alternating DC
Answer: C. DCEP
Rationale: E6010 electrodes are designed primarily for direct current
electrode positive (reverse polarity), providing deep penetration and a
forceful arc.
10. Why should welding cylinders always be secured upright?
4
