A. cubic metre/sec
B. metre/sec
C. cubic metre
D. square metre
Related Mcqs:
- A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If <j) index remains at the same value, the runoff due to 10 cm of rainfall in 12 hours in the catchment is___________________?
A. 4.5 cm
B. 6.0 cm
C. 7.5 cm
D. 9.0 cm - The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by_______________?
A. direct runoff volume
B. period of storm
C. total rainfall
D. none of the above - A runoff river plant is____________?
A. a low head scheme
B. a medium head scheme
C. a high head scheme
D. none of the above - A runoff river plant_________________?
A. is a medium head scheme
B. generates power during peak hours only
C. is suitable only on a perennial river
D. has no pondage at all - The runoff increases with________________?
A. increase in intensity of rain
B. increase in infiltration capacity
C. increase in permeability of soil
D. all of the above - The best unit duration of storm for a unit hydrograph is________________?
A. 1 hour
B. one-fourth of basin lag
C. one-half of basin lag
D. equal to basin lag - A unit hydro graph has one unit of_______________?
A. rainfall duration
B. rainfall excess
C. time base of direct runoff
D. discharge - For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is________________?
A. N/(m+l)
B. m/(N+l)
C. m/N
D. (N+l)/m - Main purpose of mean water training for rivers is________________?
A. flood control
B. to provide sufficient depth of water in navigable channels, during low water periods
C. to preserve the channel in good shape by efficient disposal of suspended and bed load
D. all of the above - The main cause of meandering is________________?
A. presence of an excessive bed slope in the river
B. degradation
C. the extra turbulence generated by the excess of river sediment during floods
D. none of the above
