1. prepare down the minimum grades of concrete suggested for plain and reinforced concrete in extreme environment exposure condition?

2. What do you mean by M25 concrete?

3. prepare down the characteristic strength of material and characteristic load.

4. What do you understand by ‘limit state’?

5. prepare down partial safety factor for strength of concrete and reinforcing bars.

6. Describe why it is undesirable to design the over reinforcing section?

7. Reinforced concrete slab are usually safe in shear and do not need shear reinforcement. Describe why in detail?

8. prepare down the limits for maximum spacing of main and secondary reinforcement in reinforced concrete slab.