Question

What is the minimum area of tension reinforcement in beams when Fe 415 is used?

• A. 0.8%
• B. 0.12%
• C. 0.15%
• D. 0.2%

Answer 1

The correct option is D 0.2%

Since, criteria for minimum area of tension reinforcement.
$\frac{A_{st}}{bd}=\frac{0.85}{f_y}\because f_y=415MPa\Rightarrow \frac{A_{st}}{bd}\times 100=\frac{0.85}{415}\times 100=0.2\%$