Q19. | What is the evaporation, if 4.75 litre of water is removed from an evaporation pan diameter 1.22m and simultaneous rainfall measurement is 8.8 mm ? |
Q20. | What is the evaporation, if 4.75 litre of water is removed from an evaporation pan diameter 1.22m and simultaneous rainfall measurement is 8.8 mm ? |
Q21. | If wind velocity at a height of 2m above the ground is 15 km/h then velocity at a height og 10 m above the ground will be : |
Q22. | The based period of a 6 h unit hydrograph of a basin is 84 h. Then a 12 h hydrograph derived from the 6 h unit hydrograph will have a base period of : |
Q23. | If a tengent drawn parallel to the demand line from a ridge point of a flow mass curve does not intersect the mass curve again, it represents that : |
Q24. | A well with a radius of 0.5 m, completely penetrates an unconfined aquifer of thickness 50m and k=30m/day. The well is pumped sop that the water level in the well remain at 40 m above the bottom. Assuming that pumping has essentially no effect on water table at r=500 m,the steady -state discharge will be : |