Michigan Welding Inspector Level 2
Exam Practice Questions And Correct
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1. Which welding process is most suitable for welding thin-gauge
stainless steel with minimal distortion?
A. SMAW
B. GTAW
C. FCAW
D. SAW
Rationale: GTAW (Gas Tungsten Arc Welding) provides precise heat
input and control, making it ideal for thin–gauge stainless steel with
minimal distortion.
2. In AWS D1.1, what does the symbol “V-groove weld” indicate on a
welding drawing?
A. Fillet weld
B. Plug weld
C. Groove weld prepared with V-shaped bevels
D. Spot weld
Rationale: The V-shaped graphic on a drawing represents a groove
weld made with V-shaped bevels on the joint.
3. Which discontinuity is characterized by a surface break perpendicular
to the weld axis?
A. Underfill
B. Incomplete penetration
C. Cracking
, D. Excessive reinforcement
Rationale: Cracking appears as a break on or near the surface and is
typically perpendicular to the weld axis, compromising integrity.
4. What is the primary purpose of a welder qualification test?
A. To calibrate NDT equipment
B. To inspect base metal
C. To verify a welder’s ability to produce a sound weld per a WPS
D. To establish welding symbol interpretation
Rationale: Welder qualification ensures the individual can produce
welds meeting the requirements of the applicable Welding Procedure
Specification.
5. In nondestructive testing, PT stands for:
A. Positive Thermal inspection
B. Penetrant Testing
C. Partial Test
D. Pressure Test
Rationale: Penetrant Testing uses liquid penetrants to reveal
surface-breaking discontinuities in welds and materials.
6. What tool is typically used to measure weld throat thickness?
A. Caliper
B. Micrometer
C. Fillet weld gauge
D. Depth gauge
Rationale: A fillet weld gauge measures throat size and leg length to
verify weld size per design requirements.
7. Which material property is most associated with resistance to fracture
at low temperatures?
A. Hardness
B. Toughness
C. Ductility
D. Conductivity
Rationale: Toughness refers to a material’s ability to absorb energy
and resist fracture, especially at low temperatures.
8. In ASME Section IX, what does “PWHT” refer to?
A. Pre-weld heat threshold
, B. Post-weld heat treatment
C. Partial weld holding test
D. Passive weld hardness test
Rationale: Post-weld heat treatment is applied after welding to
relieve residual stresses and improve properties.
9. A lack of fusion occurs when:
A. Weld is oversized
B. Weld metal overlapped the base material
C. Base metal and weld metal do not properly join
D. Weld penetration is excessive
Rationale: Lack of fusion means the weld metal has not properly
fused with the base metal or previous weld bead.
10. Which NDT method uses magnetic fields to detect surface and
near-surface defects?
A. Ultrasonic Testing
B. Magnetic Particle Testing
C. Radiographic Testing
D. Liquid Penetrant Testing
Rationale: Magnetic Particle Testing uses magnetic fields and
particles to reveal discontinuities in ferromagnetic materials.
11. In AWS A2.4, welding symbols are standardized primarily to:
A. Simplify fabrication math
B. Indicate code compliance categories
C. Convey weld requirements on drawings
D. Define heat treatment procedures
Rationale: Standardized symbols communicate specific weld
requirements, including type, size, and finish on drawings.
12. What is the acceptable unit for reporting hardness in Rockwell C
scale?
A. Pascals
B. Joules
C. Hardness number (HRC)
D. Millimeters
Rationale: Rockwell hardness results are expressed as a hardness
number on the C scale (HRC).
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. Which welding process is most suitable for welding thin-gauge
stainless steel with minimal distortion?
A. SMAW
B. GTAW
C. FCAW
D. SAW
Rationale: GTAW (Gas Tungsten Arc Welding) provides precise heat
input and control, making it ideal for thin–gauge stainless steel with
minimal distortion.
2. In AWS D1.1, what does the symbol “V-groove weld” indicate on a
welding drawing?
A. Fillet weld
B. Plug weld
C. Groove weld prepared with V-shaped bevels
D. Spot weld
Rationale: The V-shaped graphic on a drawing represents a groove
weld made with V-shaped bevels on the joint.
3. Which discontinuity is characterized by a surface break perpendicular
to the weld axis?
A. Underfill
B. Incomplete penetration
C. Cracking
, D. Excessive reinforcement
Rationale: Cracking appears as a break on or near the surface and is
typically perpendicular to the weld axis, compromising integrity.
4. What is the primary purpose of a welder qualification test?
A. To calibrate NDT equipment
B. To inspect base metal
C. To verify a welder’s ability to produce a sound weld per a WPS
D. To establish welding symbol interpretation
Rationale: Welder qualification ensures the individual can produce
welds meeting the requirements of the applicable Welding Procedure
Specification.
5. In nondestructive testing, PT stands for:
A. Positive Thermal inspection
B. Penetrant Testing
C. Partial Test
D. Pressure Test
Rationale: Penetrant Testing uses liquid penetrants to reveal
surface-breaking discontinuities in welds and materials.
6. What tool is typically used to measure weld throat thickness?
A. Caliper
B. Micrometer
C. Fillet weld gauge
D. Depth gauge
Rationale: A fillet weld gauge measures throat size and leg length to
verify weld size per design requirements.
7. Which material property is most associated with resistance to fracture
at low temperatures?
A. Hardness
B. Toughness
C. Ductility
D. Conductivity
Rationale: Toughness refers to a material’s ability to absorb energy
and resist fracture, especially at low temperatures.
8. In ASME Section IX, what does “PWHT” refer to?
A. Pre-weld heat threshold
, B. Post-weld heat treatment
C. Partial weld holding test
D. Passive weld hardness test
Rationale: Post-weld heat treatment is applied after welding to
relieve residual stresses and improve properties.
9. A lack of fusion occurs when:
A. Weld is oversized
B. Weld metal overlapped the base material
C. Base metal and weld metal do not properly join
D. Weld penetration is excessive
Rationale: Lack of fusion means the weld metal has not properly
fused with the base metal or previous weld bead.
10. Which NDT method uses magnetic fields to detect surface and
near-surface defects?
A. Ultrasonic Testing
B. Magnetic Particle Testing
C. Radiographic Testing
D. Liquid Penetrant Testing
Rationale: Magnetic Particle Testing uses magnetic fields and
particles to reveal discontinuities in ferromagnetic materials.
11. In AWS A2.4, welding symbols are standardized primarily to:
A. Simplify fabrication math
B. Indicate code compliance categories
C. Convey weld requirements on drawings
D. Define heat treatment procedures
Rationale: Standardized symbols communicate specific weld
requirements, including type, size, and finish on drawings.
12. What is the acceptable unit for reporting hardness in Rockwell C
scale?
A. Pascals
B. Joules
C. Hardness number (HRC)
D. Millimeters
Rationale: Rockwell hardness results are expressed as a hardness
number on the C scale (HRC).
