Michigan Welding Technician Level 2
Exams Practice Questions And Correct
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Rationale 2026 Q&A| Instant Download
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1. What minimum welding current is typically used for SMAW on
1/4-inch A36 steel with an E7018 electrode?
A. 50–70 A
B. 90–130 A
C. 120–160 A
D. 180–220 A
This range reflects standard recommended amperages for E7018 on
1/4-inch carbon steel to achieve proper penetration and bead profile.
2. What is the primary purpose of a weld procedure specification (WPS)?
A. To train welders on safety procedures
B. To ensure consistent weld quality by defining parameters
C. To document customer project requirements
D. To list allowable welding consumables
The WPS provides detailed, repeatable instructions for welding
variables to maintain quality and compliance.
3. Which NDT method is most effective at detecting surface cracks on
austenitic stainless steel welds?
A. Radiographic Testing
B. Dye Penetrant Inspection
C. Ultrasonic Testing
D. Magnetic Particle Inspection
, Dye penetrant is well-suited for surface discontinuities on
nonferromagnetic materials such as austenitic stainless steel.
4. Preheat is required before welding certain steels to prevent:
A. Surface oxidation
B. Excessive deposition rate
C. Hydrogen-induced cracking
D. Increased weld spatter
Preheat reduces cooling rate and lowers the risk of hydrogen
cracking in hardenable steels.
5. In FCAW, what is the role of the flux in the electrode?
A. To add filler metal
B. To shield the arc and stabilize the weld pool
C. To increase travel speed
D. To decrease current requirements
Flux provides gaseous and slag shielding, protecting the molten weld
from atmospheric contamination.
6. Which welding position is denoted as 3F?
A. Flat groove
B. Horizontal groove
C. Vertical fillet
D. Overhead groove
3F indicates a vertical fillet weld, welding upward or downward on a
vertical surface.
7. What gas mixture is commonly used for MIG welding carbon steel?
A. Argon-Oxygen
B. Argon-Carbon dioxide (C25)
C. Helium-Oxygen
D. Pure helium
C25 (75% argon/25% CO₂) is widely used for stable MIG welding on
carbon steel.
8. Which property describes a material’s resistance to indentation?
A. Ductility
B. Toughness
C. Hardness
D. Elasticity
, Hardness measures a metal’s resistance to deformation from a
localized force.
9. What is the principal distinction between TIG and MIG welding?
A. Use of power supply
B. Weld position limitations
C. Arc shielding and filler wire feeding method
D. Base metal thickness capabilities
TIG uses a non-consumable tungsten electrode and externally fed
filler, whereas MIG uses a consumable wire electrode.
10. What is the maximum allowable weld reinforcement on a groove
weld per AWS D1.1?
A. 1/8 inch
B. 1/4 inch
C. 3/8 inch
D. 1/2 inch
AWS D1.1 specifies maximum reinforcement to control stress
concentrations and distortion.
11. What test is performed to determine a welder’s ability to
produce sound welds under controlled conditions?
A. Visual inspection
B. Welder qualification test
C. Hardness test
D. Macroetch test
Welder qualification tests evaluate skill in producing welds that meet
acceptance criteria.
12. Which of the following is a common cause of porosity in welds?
A. Excessive heat input
B. Contaminants like moisture or oil
C. High travel speed
D. Low amperage
Contaminants introduce gases that cannot escape the molten weld,
causing porosity.
13. Heat-affected zone (HAZ) refers to:
A. The weld bead only
B. Unaffected base material
Exams Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. What minimum welding current is typically used for SMAW on
1/4-inch A36 steel with an E7018 electrode?
A. 50–70 A
B. 90–130 A
C. 120–160 A
D. 180–220 A
This range reflects standard recommended amperages for E7018 on
1/4-inch carbon steel to achieve proper penetration and bead profile.
2. What is the primary purpose of a weld procedure specification (WPS)?
A. To train welders on safety procedures
B. To ensure consistent weld quality by defining parameters
C. To document customer project requirements
D. To list allowable welding consumables
The WPS provides detailed, repeatable instructions for welding
variables to maintain quality and compliance.
3. Which NDT method is most effective at detecting surface cracks on
austenitic stainless steel welds?
A. Radiographic Testing
B. Dye Penetrant Inspection
C. Ultrasonic Testing
D. Magnetic Particle Inspection
, Dye penetrant is well-suited for surface discontinuities on
nonferromagnetic materials such as austenitic stainless steel.
4. Preheat is required before welding certain steels to prevent:
A. Surface oxidation
B. Excessive deposition rate
C. Hydrogen-induced cracking
D. Increased weld spatter
Preheat reduces cooling rate and lowers the risk of hydrogen
cracking in hardenable steels.
5. In FCAW, what is the role of the flux in the electrode?
A. To add filler metal
B. To shield the arc and stabilize the weld pool
C. To increase travel speed
D. To decrease current requirements
Flux provides gaseous and slag shielding, protecting the molten weld
from atmospheric contamination.
6. Which welding position is denoted as 3F?
A. Flat groove
B. Horizontal groove
C. Vertical fillet
D. Overhead groove
3F indicates a vertical fillet weld, welding upward or downward on a
vertical surface.
7. What gas mixture is commonly used for MIG welding carbon steel?
A. Argon-Oxygen
B. Argon-Carbon dioxide (C25)
C. Helium-Oxygen
D. Pure helium
C25 (75% argon/25% CO₂) is widely used for stable MIG welding on
carbon steel.
8. Which property describes a material’s resistance to indentation?
A. Ductility
B. Toughness
C. Hardness
D. Elasticity
, Hardness measures a metal’s resistance to deformation from a
localized force.
9. What is the principal distinction between TIG and MIG welding?
A. Use of power supply
B. Weld position limitations
C. Arc shielding and filler wire feeding method
D. Base metal thickness capabilities
TIG uses a non-consumable tungsten electrode and externally fed
filler, whereas MIG uses a consumable wire electrode.
10. What is the maximum allowable weld reinforcement on a groove
weld per AWS D1.1?
A. 1/8 inch
B. 1/4 inch
C. 3/8 inch
D. 1/2 inch
AWS D1.1 specifies maximum reinforcement to control stress
concentrations and distortion.
11. What test is performed to determine a welder’s ability to
produce sound welds under controlled conditions?
A. Visual inspection
B. Welder qualification test
C. Hardness test
D. Macroetch test
Welder qualification tests evaluate skill in producing welds that meet
acceptance criteria.
12. Which of the following is a common cause of porosity in welds?
A. Excessive heat input
B. Contaminants like moisture or oil
C. High travel speed
D. Low amperage
Contaminants introduce gases that cannot escape the molten weld,
causing porosity.
13. Heat-affected zone (HAZ) refers to:
A. The weld bead only
B. Unaffected base material
