AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam

Access More Questions

An invert will be cast directly against rock. The drawings say "cover per ACI 318 for concrete cast against earth." What cover should the setter provide to the bottom bars?

3/4 inch on dobies 3 inches, using chairs or dobies that hold that dimension No cover, because rock counts as concrete 1-1/2 inches, the same as a beam stirrup in dry interior exposure

Correct Answer:

3 inches, using chairs or dobies that hold that dimension

Access more questions from this quiz

Continue to AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions