Alberta Welder Apprenticeship Certification
Exam Practice (Levels 1–3) (Questions And
Correct Answers ) (Verified Answers) Plus
Rationales 2026 Q&A| Instant Download Pdf
1. Which of the following is the most important reason for wearing a
g g g g g g g g g g g
welding helmet?
g g
A. To look professional
g g g
B. To protect your eyes and face from sparks and UV radiation
g g g g g g g g g g g
C. To keep your head warm
g g g g g
D. To prevent inhaling fumes
g g g g
B. To protect your eyes and face from sparks and UV radiation
g g g g g g g g g g g
Rationale: Welding helmets protect against harmful ultraviolet (UV)
g g g g g g g g
and infrared (IR) radiation, flying sparks, and molten metal, preventing
g g g g g g g g g g
eye injuries like arc eye.
g g g g g
2. Which welding process uses a continuously fed consumable wire
g g g g g g g g
electrode and shielding gas?
g g g g
A. SMAW
g
B. GMAW
g
C. OAW
g
D. FCAW (self-shielded)
g g
B. GMAW
g
Rationale: Gas Metal Arc Welding (GMAW) uses a continuous wire
g g g g g g g g g
electrode and external shielding gas to protect the weld pool from
g g g g g g g g g g g
contamination.
g
3. What is the primary function of flux in SMAW (stick) welding?
g g g g g g g g g g
A. To make the electrode stronger
g g g g g
B. To shield the molten weld from contamination
g g g g g g g
C. To cool the weld faster
g g g g g
D. To increase electrical conductivity
g g g g
, B. To shield the molten weld from contamination
g g g g g g g
Rationale: The flux coating melts and produces gas and slag that
g g g g g g g g g g
protect the weld from atmospheric contamination.
g g g g g g
4. Which metal is most commonly welded using TIG welding?
g g g g g g g g
A. Aluminum
g
B. Cast iron
g g
C. Bronze
g
D. Lead
g
A. Aluminum
g
Rationale: TIG welding is preferred for aluminum due to its ability to
g g g g g g g g g g g
produce clean, precise welds with controlled heat input.
g g g g g g g g
5. What is the purpose of preheating steel before welding?
g g g g g g g g
A. To change its color
g g g g
B. To reduce the risk of cracking
g g g g g g
C. To make welding faster
g g g g
D. To save electricity
g g g
B. To reduce the risk of cracking
g g g g g g
Rationale: Preheating reduces thermal shock and allows hydrogen to
g g g g g g g g
diffuse, reducing the likelihood of weld cracking.
g g g g g g g
6. Which of the following is the correct definition of a fillet weld?
g g g g g g g g g g g
A. A weld that fills a hole
g g g g g g
B. A weld joining two surfaces at approximately right angles
g g g g g g g g g
C. A weld along the edge of a single metal piece
g g g g g g g g g g
D. A decorative weld
g g g
B. A weld joining two surfaces at approximately right angles
g g g g g g g g g
Rationale: Fillet welds are used to join two pieces of metal at right
g g g g g g g g g g g g g
angles, commonly in T, lap, or corner joints.
g g g g g g g g
7. What is the main hazard when welding galvanized steel?
g g g g g g g g
A. Sparks
B. Zinc fume inhalation g g
C. Electric shock g
D. Arc flash g
B. Zinc fume inhalation
g g g
Rationale: Heating galvanized steel releases zinc fumes, which can
g g g g g g g g
cause metal fume fever if inhaled. Proper ventilation and PPE are
g g g g g g g g g g g
required.
g
, 8. Which welding process does NOT use an external shielding gas?
g g g g g g g g g
A. GMAW
B. GTAW
C. SMAW
D. FCAW (gas-shielded) g
C. SMAW
g
Rationale: Shielded Metal Arc Welding (SMAW) uses flux-coated
g g g g g g g
gelectrodes that produce their own shielding gas.
g g g g g g
9. When reading a blueprint, what does a thick solid line typically
g g g g g g g g g g
gindicate?
A. Hidden edges g
B. Centerlines
C. Visible edges g
D. Weld symbols g
C. Visible edges
g g
Rationale: Thick solid lines are used to show edges that are visible in
g g g g g g g g g g g g
gthe view being represented on the drawing.
g g g g g g
10. What is the main purpose of a backhand welding technique?
g g g g g g g g g
A. To make welds look smoother
g g g g
B. To weld in tight corners
g g g g
C. To reduce heat input and prevent burn-through
g g g g g g
D. To increase deposition rate
g g g
C. To reduce heat input and prevent burn-through
g g g g g g g
Rationale: Backhand welding directs the electrode toward the base
g g g g g g g g
gmetal to control heat, making it suitable for thin materials.
g g g g g g g g g
11. Which type of joint is used when two pieces of metal are end-to-
g g g g g g g g g g g g
gend in the same plane?
g g g g
A. Lap joint g
B. Butt joint g
C. Corner joint g
D. Edge joint g
B. Butt joint
g g
Rationale: Butt joints connect two pieces along a single plane, often
g g g g g g g g g g
gwelded along the seam. g g g
12. What is the effect of using too high amperage during welding?
g g g g g g g g g g
A. Produces a weaker weld with poor penetration g g g g g g
B. Produces excessive penetration and possible burn-through
g g g g g
Exam Practice (Levels 1–3) (Questions And
Correct Answers ) (Verified Answers) Plus
Rationales 2026 Q&A| Instant Download Pdf
1. Which of the following is the most important reason for wearing a
g g g g g g g g g g g
welding helmet?
g g
A. To look professional
g g g
B. To protect your eyes and face from sparks and UV radiation
g g g g g g g g g g g
C. To keep your head warm
g g g g g
D. To prevent inhaling fumes
g g g g
B. To protect your eyes and face from sparks and UV radiation
g g g g g g g g g g g
Rationale: Welding helmets protect against harmful ultraviolet (UV)
g g g g g g g g
and infrared (IR) radiation, flying sparks, and molten metal, preventing
g g g g g g g g g g
eye injuries like arc eye.
g g g g g
2. Which welding process uses a continuously fed consumable wire
g g g g g g g g
electrode and shielding gas?
g g g g
A. SMAW
g
B. GMAW
g
C. OAW
g
D. FCAW (self-shielded)
g g
B. GMAW
g
Rationale: Gas Metal Arc Welding (GMAW) uses a continuous wire
g g g g g g g g g
electrode and external shielding gas to protect the weld pool from
g g g g g g g g g g g
contamination.
g
3. What is the primary function of flux in SMAW (stick) welding?
g g g g g g g g g g
A. To make the electrode stronger
g g g g g
B. To shield the molten weld from contamination
g g g g g g g
C. To cool the weld faster
g g g g g
D. To increase electrical conductivity
g g g g
, B. To shield the molten weld from contamination
g g g g g g g
Rationale: The flux coating melts and produces gas and slag that
g g g g g g g g g g
protect the weld from atmospheric contamination.
g g g g g g
4. Which metal is most commonly welded using TIG welding?
g g g g g g g g
A. Aluminum
g
B. Cast iron
g g
C. Bronze
g
D. Lead
g
A. Aluminum
g
Rationale: TIG welding is preferred for aluminum due to its ability to
g g g g g g g g g g g
produce clean, precise welds with controlled heat input.
g g g g g g g g
5. What is the purpose of preheating steel before welding?
g g g g g g g g
A. To change its color
g g g g
B. To reduce the risk of cracking
g g g g g g
C. To make welding faster
g g g g
D. To save electricity
g g g
B. To reduce the risk of cracking
g g g g g g
Rationale: Preheating reduces thermal shock and allows hydrogen to
g g g g g g g g
diffuse, reducing the likelihood of weld cracking.
g g g g g g g
6. Which of the following is the correct definition of a fillet weld?
g g g g g g g g g g g
A. A weld that fills a hole
g g g g g g
B. A weld joining two surfaces at approximately right angles
g g g g g g g g g
C. A weld along the edge of a single metal piece
g g g g g g g g g g
D. A decorative weld
g g g
B. A weld joining two surfaces at approximately right angles
g g g g g g g g g
Rationale: Fillet welds are used to join two pieces of metal at right
g g g g g g g g g g g g g
angles, commonly in T, lap, or corner joints.
g g g g g g g g
7. What is the main hazard when welding galvanized steel?
g g g g g g g g
A. Sparks
B. Zinc fume inhalation g g
C. Electric shock g
D. Arc flash g
B. Zinc fume inhalation
g g g
Rationale: Heating galvanized steel releases zinc fumes, which can
g g g g g g g g
cause metal fume fever if inhaled. Proper ventilation and PPE are
g g g g g g g g g g g
required.
g
, 8. Which welding process does NOT use an external shielding gas?
g g g g g g g g g
A. GMAW
B. GTAW
C. SMAW
D. FCAW (gas-shielded) g
C. SMAW
g
Rationale: Shielded Metal Arc Welding (SMAW) uses flux-coated
g g g g g g g
gelectrodes that produce their own shielding gas.
g g g g g g
9. When reading a blueprint, what does a thick solid line typically
g g g g g g g g g g
gindicate?
A. Hidden edges g
B. Centerlines
C. Visible edges g
D. Weld symbols g
C. Visible edges
g g
Rationale: Thick solid lines are used to show edges that are visible in
g g g g g g g g g g g g
gthe view being represented on the drawing.
g g g g g g
10. What is the main purpose of a backhand welding technique?
g g g g g g g g g
A. To make welds look smoother
g g g g
B. To weld in tight corners
g g g g
C. To reduce heat input and prevent burn-through
g g g g g g
D. To increase deposition rate
g g g
C. To reduce heat input and prevent burn-through
g g g g g g g
Rationale: Backhand welding directs the electrode toward the base
g g g g g g g g
gmetal to control heat, making it suitable for thin materials.
g g g g g g g g g
11. Which type of joint is used when two pieces of metal are end-to-
g g g g g g g g g g g g
gend in the same plane?
g g g g
A. Lap joint g
B. Butt joint g
C. Corner joint g
D. Edge joint g
B. Butt joint
g g
Rationale: Butt joints connect two pieces along a single plane, often
g g g g g g g g g g
gwelded along the seam. g g g
12. What is the effect of using too high amperage during welding?
g g g g g g g g g g
A. Produces a weaker weld with poor penetration g g g g g g
B. Produces excessive penetration and possible burn-through
g g g g g
