Q. A lead line or sounding line (Solved)
1. Is stretched thoroughly when wet before it is graduated
2. Should be soaked in water for about one hour prior to taking soundings
3. Is adjusted at regular interval
4. All the above
- d. All the above
1. Is stretched thoroughly when wet before it is graduated
2. Should be soaked in water for about one hour prior to taking soundings
3. Is adjusted at regular interval
4. All the above