A. zero
B. between zero and one
C. 1
D. infinity
Related Mcqs:
- The most suitable material for the central impervious core of a zoned embankment type dam is_______________?
A. clay
B. coarse sand
C. silty clay
D. clay mixed with fine sand - For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is_______________?
A. 0.2 x 106
B. 0.6 x 106
C. 2.4 xlO6
D. 7.2 xlO6 - A river training work is generally required when the river is_______________?
A. aggrading type
B. degrading type
C. meandering type
D. both (A) and (B) - For the upstream face of an earthen dam, the most adverse condition for stability of slope is_______________?
A. sudden drawdown
B. steady seepage
C. during construction
D. sloughing of slope - 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 - Seepage through foundation in an earthen dam is controlled by providing___________________?
A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain - A repelling groyne is aligned________________?
A. pointing upstream
B. pointing downstream
C. perpendicular to bank
D. parallel to bank - The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be__________________?
A. 20 3/sec
B. 25 m3/sec
C. 30 m3/sec
D. 35 m3/sec - The aqueduct or superpassage type of works are generally used when_______________?
A. high flood drainage discharge is small
B. high flood drainage discharge is large and short lived
C. high flood drainage discharge is large and continues for a long time
D. none of the above - Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
A. flat water surface
B. convex water surface
C. concave water surface
D. independent of shape of water surface