If S and H are strength and hardness index of a timber at 12% moisture content, the composite sleeper index, is

- 1
  
  $\frac{H + 10 S}{20}$
- 2
  
  $\frac{S + 10 H}{20}$
- 3
  
  $\frac{20 S + H}{10}$
- 4
  
  $\frac{S + 20 H}{10}$

Display Comments

Leave a comment

Login at first then you can submit comment. Click here to login.