The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of_________________?

Related Mcqs:

1. 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

2. S-hydrograph is used to obtain unit hydrograph of________________?

   A. shorter duration from longer duration
   B. longer duration from shorter duration
   C. both (A) and (B)
   D. none of the above

3. 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

4. Instantaneous unit hydrograph is a hydrograph of________________?

   1) unit duration
   2) unit rainfall excess
   3) infinitely small duration
   4) infinitely small rainfall excess
   The correct answer is?

   A. (1) and (2)
   B. (1)and(4)
   C. (2) and (3)
   D. (3) and (4)

5. 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

6. The shape of recession limb of a hydrograph depends upon________________?

   A. basin characteristics only
   B. storm characteristics only
   C. both (A) and (B)
   D. none of the above

7. Hydrograph is the graphical representation of________________?

   A. runoff and time
   B. surface runoff and time
   C. ground waterflow and time
   D. rainfall and time

8. The maximum average depth due to one day storm over an area of 100 km2 is 100 mm. Depth-Area-Duration (DAD. curves indicate that for the same area of 100 km2 the maximum average depth for a 3 hour storm will be__________________?

   A. 100 mm
   B. more than 100 mm
   C. less than 100 mm
   D. none of the above

9. A unit hydro graph has one unit of_______________?

   A. rainfall duration
   B. rainfall excess
   C. time base of direct runoff
   D. discharge

10. Hydrodynamic pressure due to earthquake acts at a height of_________________?

    A. 3H/47I above the base
    B. 3H747t below the water surface
    C. 4H/371 above the base
    D. 4H737t below the water surface where H is the depth of water