A. 50 mm
B. 100 mm
C. 150 mm
D. 200 mm
✅ The correct answer is option B.
Design of Concrete Structures MCQs
In a counterfort retaining wall, the main reinforcement in the stem at mid span is provided on_______________?
A. front face only
B. inner face only
C. both front face and inner face
D. none of the above
✅ The correct answer is option A.