BC Ironworker Certification Exam Questions
And Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the minimum yield strength for a standard structural steel
used in BC construction projects?
A. 250 MPa
B. 350 MPa
C. 450 MPa
D. 500 MPa
Structural steel commonly used in BC requires a minimum yield
strength of 350 MPa to meet building codes.
2. When welding a structural steel member, which factor is most
important to prevent distortion?
A. Type of electrode
B. Welding speed
C. Heat input control
D. Ambient temperature
Controlling heat input is critical to minimize warping and maintain
dimensional accuracy in structural steel.
3. Which type of connection is most suitable for high-load steel
beams in multi-storey buildings?
A. Bolted moment connection
B. Shear tab connection
C. Riveted connection
, D. Welded lap joint
Bolted moment connections transfer bending and shear forces,
ideal for high-load situations.
4. Which lifting device is commonly used for precise placement of
steel beams?
A. Chain hoist
B. Cranes with spreader bars
C. Come-along
D. Forklift
Cranes with spreader bars allow safe and controlled positioning of
heavy steel members.
5. What is the standard diameter range for high-strength bolts in
structural steel applications?
A. 12–20 mm
B. 16–36 mm
C. 40–50 mm
D. 6–12 mm
High-strength bolts typically range from 16 mm to 36 mm for steel
connections.
6. Which tool is most suitable for cutting thick steel plates on-site?
A. Hand saw
B. Drill press
C. Oxy-acetylene torch
D. Angle grinder with thin disc
An oxy-acetylene torch is capable of efficiently cutting thick steel
plate in construction environments.
, 7. When performing a structural steel layout, which reference is
critical?
A. Engineer’s drawings
B. Manufacturer catalog
C. Safety manual
D. Material data sheet
Engineer’s drawings provide precise dimensions and specifications
required for fabrication.
8. What is the primary purpose of a shim in steel erection?
A. To weld pieces together
B. To level or align steel members
C. To mark locations for drilling
D. To support scaffolding
Shims are used to adjust heights or alignments before final bolting
or welding.
9. Which welding position is generally considered the most difficult?
A. Flat
B. Horizontal
C. Overhead
D. Vertical
Overhead welding requires skill to prevent slag inclusions and
ensure proper penetration.
10. Which safety factor is commonly applied when calculating
allowable loads for steel structures?
A. 1.0
B. 1.25
C. 1.5
And Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the minimum yield strength for a standard structural steel
used in BC construction projects?
A. 250 MPa
B. 350 MPa
C. 450 MPa
D. 500 MPa
Structural steel commonly used in BC requires a minimum yield
strength of 350 MPa to meet building codes.
2. When welding a structural steel member, which factor is most
important to prevent distortion?
A. Type of electrode
B. Welding speed
C. Heat input control
D. Ambient temperature
Controlling heat input is critical to minimize warping and maintain
dimensional accuracy in structural steel.
3. Which type of connection is most suitable for high-load steel
beams in multi-storey buildings?
A. Bolted moment connection
B. Shear tab connection
C. Riveted connection
, D. Welded lap joint
Bolted moment connections transfer bending and shear forces,
ideal for high-load situations.
4. Which lifting device is commonly used for precise placement of
steel beams?
A. Chain hoist
B. Cranes with spreader bars
C. Come-along
D. Forklift
Cranes with spreader bars allow safe and controlled positioning of
heavy steel members.
5. What is the standard diameter range for high-strength bolts in
structural steel applications?
A. 12–20 mm
B. 16–36 mm
C. 40–50 mm
D. 6–12 mm
High-strength bolts typically range from 16 mm to 36 mm for steel
connections.
6. Which tool is most suitable for cutting thick steel plates on-site?
A. Hand saw
B. Drill press
C. Oxy-acetylene torch
D. Angle grinder with thin disc
An oxy-acetylene torch is capable of efficiently cutting thick steel
plate in construction environments.
, 7. When performing a structural steel layout, which reference is
critical?
A. Engineer’s drawings
B. Manufacturer catalog
C. Safety manual
D. Material data sheet
Engineer’s drawings provide precise dimensions and specifications
required for fabrication.
8. What is the primary purpose of a shim in steel erection?
A. To weld pieces together
B. To level or align steel members
C. To mark locations for drilling
D. To support scaffolding
Shims are used to adjust heights or alignments before final bolting
or welding.
9. Which welding position is generally considered the most difficult?
A. Flat
B. Horizontal
C. Overhead
D. Vertical
Overhead welding requires skill to prevent slag inclusions and
ensure proper penetration.
10. Which safety factor is commonly applied when calculating
allowable loads for steel structures?
A. 1.0
B. 1.25
C. 1.5
