📘 Materials Engineer Exam Reviewer - Part 6 Structural Steel, Reinforcing Steel, and Metal Works

Topic Focus: Structural Steel, Reinforcing Steel, and Metal Works

This part covers essential questions related to the use, specifications, testing, and placement of structural and reinforcing steel, as well as metal works in infrastructure projects per the latest DPWH Blue Book.

🧠 Multiple Choice Questions

1. What is the minimum yield strength required for Grade 60 reinforcing bars?
   • A. 250 MPa
   • B. 420 MPa
   • C. 415 MPa
   • D. 275 MPa
2. Which type of steel is used for structural wide flange beams?
   • A. ASTM A36
   • B. ASTM A706
   • C. ASTM A615
   • D. ASTM A992
3. What is the standard method for testing the tensile strength of reinforcing bars?
   • A. ASTM C39
   • B. ASTM A370
   • C. ASTM D1557
   • D. ASTM A615
4. What should be the minimum lap splice length for Grade 60 deformed bars in tension?
   • A. 20d
   • B. 30d
   • C. 40d
   • D. 50d
5. When welding steel reinforcement, which specification governs weldability of the bars?
   • A. ASTM A615
   • B. ACI 318
   • C. AWS D1.4
   • D. ASTM C1609

📜 Answer Key

1. B    2. D    3. B    4. C    5. C

🔗 References

• DPWH Standard Specifications - Blue Book
• ASTM A370 – Standard Test Methods for Steel Products
• AWS D1.4 – Structural Welding Code – Reinforcing Steel
• American Concrete Institute (ACI) 318