| Q.25 | In which type of weir is the excess energy of overflowing water dissipated by means of a hydraulic jump? | |
| Ans | 1. Masonry weirs with vertical downstream face | |
| 2. Okhla weir | ||
| 3. Concrete weirs with glacis | ||
| 4. Rockfill weirs with sloping aprons |
Correct Ans: 3