Michigan Welding Technician Level 2
Exam Practice Questions And Correct
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Rationale 2026 Q&A| Instant Download
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1. A welder is preparing to weld on a piece of carbon steel using SMAW
with an E7018 electrode. What is the primary characteristic of the
E7018 electrode that makes it suitable for structural welding?
A. High carbon content
B. Low hydrogen to minimize cracking
C. Flux designed to deliver low hydrogen
D. Produces a concave weld bead
The E7018 electrode’s flux coating contains compounds that
minimize hydrogen content in the weld, reducing the risk of cracking
in structural applications.
2. Which welding process is typically used for welding thin sheet metals
with high precision and minimal distortion?
A. FCAW
B. SMAW
C. GTAW
D. SAW
Gas Tungsten Arc Welding (GTAW) offers superior control and
produces clean, precise welds on thin materials with minimal
distortion.
3. In GMAW, what does the term “short-circuiting transfer” refer to?
A. Spray transfer at high current
B. Welding metal touching and melting off during each short circuit
, C. Pulsed spray transfer
D. Flux-cored slag removal
Short-circuiting transfer is a mode in GMAW where the electrode
wire repeatedly contacts the workpiece, creating small short circuits
that melt the wire tip.
4. When performing a fillet weld, the throat measurement is important
because it determines:
A. Weld length
B. Effective weld strength
C. Weld bead width
D. Heat input rate
The throat of a fillet weld is the shortest distance from the root to the
face and directly correlates to the load-carrying capacity of the joint.
5. What is the main purpose of preheating steel before welding?
A. Change color
B. Reduce the cooling rate to minimize cracking
C. Increase penetration
D. Improve electrode consumption
Preheating slows the cooling rate of the weld and adjacent base
metal, helping prevent hard microstructures that can lead to
cracking.
6. In FCAW with a self-shielded electrode, which shielding component
protects the weld pool?
A. External gas cylinder
B. Helium gas
C. Flux within the electrode
D. External shielding flux
Self-shielded flux-cored electrodes contain flux that generates
shielding gases upon decomposition, protecting the weld pool
without an external gas supply.
7. What is the purpose of a welding procedure specification (WPS)?
A. To list available consumables
B. To schedule welders
C. To provide detailed welding parameters and instructions
D. To enforce safety rules
, A WPS documents prequalified variables like current, travel speed,
and electrode type to ensure consistent, quality welds.
8. Under the AWS classification, what does the first two digits “70” in
E7018 indicate?
A. Maximum current
B. Tensile strength of 70,000 psi
C. Electrode diameter
D. Flux composition
The “70” designates that the deposited weld metal has a minimum
tensile strength of 70,000 psi.
9. Which defect appears as discontinuities or separations at the weld
root in a butt joint?
A. Undercut
B. Spatter
C. Overlap
D. Incomplete penetration
Incomplete penetration occurs when the weld metal fails to fully fuse
to the root surfaces of the joint.
10. What is the principal hazard associated with welding in confined
spaces?
A. Noise
B. Sparks only
C. Accumulation of toxic gases and lack of oxygen
D. Excessive light
Confined spaces can allow toxic fumes to build up and have
insufficient oxygen, posing serious respiratory hazards.
11. Which gas mixture is most commonly used for semi-automatic
MIG welding of mild steel?
A. 100% CO₂
B. 100% Argon
C. 75% Argon / 25% CO₂
D. Helium only
Argon-CO₂ mixtures balance arc stability, penetration, and spatter
control, making them common for mild steel MIG welding.
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. A welder is preparing to weld on a piece of carbon steel using SMAW
with an E7018 electrode. What is the primary characteristic of the
E7018 electrode that makes it suitable for structural welding?
A. High carbon content
B. Low hydrogen to minimize cracking
C. Flux designed to deliver low hydrogen
D. Produces a concave weld bead
The E7018 electrode’s flux coating contains compounds that
minimize hydrogen content in the weld, reducing the risk of cracking
in structural applications.
2. Which welding process is typically used for welding thin sheet metals
with high precision and minimal distortion?
A. FCAW
B. SMAW
C. GTAW
D. SAW
Gas Tungsten Arc Welding (GTAW) offers superior control and
produces clean, precise welds on thin materials with minimal
distortion.
3. In GMAW, what does the term “short-circuiting transfer” refer to?
A. Spray transfer at high current
B. Welding metal touching and melting off during each short circuit
, C. Pulsed spray transfer
D. Flux-cored slag removal
Short-circuiting transfer is a mode in GMAW where the electrode
wire repeatedly contacts the workpiece, creating small short circuits
that melt the wire tip.
4. When performing a fillet weld, the throat measurement is important
because it determines:
A. Weld length
B. Effective weld strength
C. Weld bead width
D. Heat input rate
The throat of a fillet weld is the shortest distance from the root to the
face and directly correlates to the load-carrying capacity of the joint.
5. What is the main purpose of preheating steel before welding?
A. Change color
B. Reduce the cooling rate to minimize cracking
C. Increase penetration
D. Improve electrode consumption
Preheating slows the cooling rate of the weld and adjacent base
metal, helping prevent hard microstructures that can lead to
cracking.
6. In FCAW with a self-shielded electrode, which shielding component
protects the weld pool?
A. External gas cylinder
B. Helium gas
C. Flux within the electrode
D. External shielding flux
Self-shielded flux-cored electrodes contain flux that generates
shielding gases upon decomposition, protecting the weld pool
without an external gas supply.
7. What is the purpose of a welding procedure specification (WPS)?
A. To list available consumables
B. To schedule welders
C. To provide detailed welding parameters and instructions
D. To enforce safety rules
, A WPS documents prequalified variables like current, travel speed,
and electrode type to ensure consistent, quality welds.
8. Under the AWS classification, what does the first two digits “70” in
E7018 indicate?
A. Maximum current
B. Tensile strength of 70,000 psi
C. Electrode diameter
D. Flux composition
The “70” designates that the deposited weld metal has a minimum
tensile strength of 70,000 psi.
9. Which defect appears as discontinuities or separations at the weld
root in a butt joint?
A. Undercut
B. Spatter
C. Overlap
D. Incomplete penetration
Incomplete penetration occurs when the weld metal fails to fully fuse
to the root surfaces of the joint.
10. What is the principal hazard associated with welding in confined
spaces?
A. Noise
B. Sparks only
C. Accumulation of toxic gases and lack of oxygen
D. Excessive light
Confined spaces can allow toxic fumes to build up and have
insufficient oxygen, posing serious respiratory hazards.
11. Which gas mixture is most commonly used for semi-automatic
MIG welding of mild steel?
A. 100% CO₂
B. 100% Argon
C. 75% Argon / 25% CO₂
D. Helium only
Argon-CO₂ mixtures balance arc stability, penetration, and spatter
control, making them common for mild steel MIG welding.
