Michigan Welding Technician Level 1
Exams Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
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1. Which welding process uses a continuously fed consumable electrode
and shielding gas?
A. GMAW
B. SMAW
C. GTAW
D. FCAW
The GMAW process uses a continuously fed consumable electrode
with an external shielding gas to protect the weld pool from
atmospheric contamination.
2. What is the primary purpose of a welding helmet with a proper shade
lens?
A. To improve visibility
B. To magnify the weld area
C. To protect the eyes from ultraviolet and infrared radiation
D. To filter particulate matter
Correct shade lenses protect the welder’s eyes from harmful
radiation while allowing adequate visibility of the arc and weld pool.
3. In SMAW, what determines the selection of an electrode?
A. Cost of electrode
B. Base metal type and required mechanical properties
C. Operator preference
D. Only current type
, Electrode selection is based on the base metal type, welding position,
and required mechanical properties of the joint.
4. What is meant by “duty cycle” in welding machines?
A. Weight of the machine
B. Percentage of time a machine can operate at a given output
without overheating
C. Length of electrode
D. Weld time per day
Duty cycle refers to the percentage of a 10-minute period the
machine can weld at rated output before needing to cool.
5. Which of the following is a ferrous metal?
A. Aluminum
B. Carbon steel
C. Brass
D. Copper
Carbon steel contains iron, classifying it as a ferrous metal.
6. What shielding gas is commonly used for MIG welding mild steel?
A. Helium
B. Oxygen
C. Argon/CO₂ mix
D. Nitrogen
A mixed argon and carbon dioxide shielding gas provides stable arc
characteristics and good weld quality on mild steel.
7. Which weld joint configuration is used when two pieces meet at a
right angle?
A. Lap joint
B. Butt joint
C. T-joint
D. Corner joint
A T-joint is formed when two pieces intersect at approximately 90
degrees.
8. What is the recommended action when porosity is found in a weld?
A. Ignore it
B. Increase heat only
C. Identify and eliminate contamination or gas issues
, D. Change filler metal
Porosity is typically caused by contamination or gas coverage issues,
so correction focuses on environment and preparatory cleaning.
9. What unit measures electrical resistance?
A. Volts
B. Ohms
C. Amperes
D. Watts
Ohms is the unit of resistance in electrical systems, including welding
circuits.
10. Which weld defect is characterized by a break in the weld
metal?
A. Porosity
B. Undercut
C. Crack
D. Spatter
A crack is an actual fracture in weld metal or heat-affected zone and
is a serious defect.
11. What type of current is most common in GTAW welding?
A. AC for all metals
B. DCEN only
C. DCEP only
D. Both AC and DC depending on base metal
GTAW uses AC for aluminum and DC for many steels, depending on
metal type.
12. Which welding position is flat?
A. F-position
B. H-position
C. 1G/PA position
D. 2F
The 1G (or PA) position is flat welding on a horizontal plane.
13. What personal protective equipment (PPE) must always be worn
by a welder?
A. Safety boots only
B. Eye protection and flame-resistant clothing
Exams Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1. Which welding process uses a continuously fed consumable electrode
and shielding gas?
A. GMAW
B. SMAW
C. GTAW
D. FCAW
The GMAW process uses a continuously fed consumable electrode
with an external shielding gas to protect the weld pool from
atmospheric contamination.
2. What is the primary purpose of a welding helmet with a proper shade
lens?
A. To improve visibility
B. To magnify the weld area
C. To protect the eyes from ultraviolet and infrared radiation
D. To filter particulate matter
Correct shade lenses protect the welder’s eyes from harmful
radiation while allowing adequate visibility of the arc and weld pool.
3. In SMAW, what determines the selection of an electrode?
A. Cost of electrode
B. Base metal type and required mechanical properties
C. Operator preference
D. Only current type
, Electrode selection is based on the base metal type, welding position,
and required mechanical properties of the joint.
4. What is meant by “duty cycle” in welding machines?
A. Weight of the machine
B. Percentage of time a machine can operate at a given output
without overheating
C. Length of electrode
D. Weld time per day
Duty cycle refers to the percentage of a 10-minute period the
machine can weld at rated output before needing to cool.
5. Which of the following is a ferrous metal?
A. Aluminum
B. Carbon steel
C. Brass
D. Copper
Carbon steel contains iron, classifying it as a ferrous metal.
6. What shielding gas is commonly used for MIG welding mild steel?
A. Helium
B. Oxygen
C. Argon/CO₂ mix
D. Nitrogen
A mixed argon and carbon dioxide shielding gas provides stable arc
characteristics and good weld quality on mild steel.
7. Which weld joint configuration is used when two pieces meet at a
right angle?
A. Lap joint
B. Butt joint
C. T-joint
D. Corner joint
A T-joint is formed when two pieces intersect at approximately 90
degrees.
8. What is the recommended action when porosity is found in a weld?
A. Ignore it
B. Increase heat only
C. Identify and eliminate contamination or gas issues
, D. Change filler metal
Porosity is typically caused by contamination or gas coverage issues,
so correction focuses on environment and preparatory cleaning.
9. What unit measures electrical resistance?
A. Volts
B. Ohms
C. Amperes
D. Watts
Ohms is the unit of resistance in electrical systems, including welding
circuits.
10. Which weld defect is characterized by a break in the weld
metal?
A. Porosity
B. Undercut
C. Crack
D. Spatter
A crack is an actual fracture in weld metal or heat-affected zone and
is a serious defect.
11. What type of current is most common in GTAW welding?
A. AC for all metals
B. DCEN only
C. DCEP only
D. Both AC and DC depending on base metal
GTAW uses AC for aluminum and DC for many steels, depending on
metal type.
12. Which welding position is flat?
A. F-position
B. H-position
C. 1G/PA position
D. 2F
The 1G (or PA) position is flat welding on a horizontal plane.
13. What personal protective equipment (PPE) must always be worn
by a welder?
A. Safety boots only
B. Eye protection and flame-resistant clothing
