Interception losses are due to_______________?

Related Mcqs:

1. For wave action in dams, the maximum height of freeboard is generally taken to be equal to_______________?

   A. 0.5 hw
   B. 0.75 hw
   C. 1.25 hw
   D. 1.50 hw

   where hw is height of wave

2. The main function of a divide wall is to_______________?

   A. control the silt entry in the canal
   B. prevent river floods from entering the canal
   C. separate the undersluices from weir proper
   D. provide smooth flow at sufficiently low velocity

3. For a flood control reservoir, the effective storage is equal to_______________?

   A. useful storage – valley storage
   B. useful storage + surcharge storage
   C. useful storage + surcharge storage + valley storage
   D. useful storage + surcharge storage -valley storage

4. 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

5. 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

6. The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is________________?

   A. less than 1
   B. equal to 1
   C. greater than 1
   D. equal to zero

7. 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

8. In case of non-availability of space due to topography, the most suitable spillway is________________?

   A. straight drop spillway
   B. shaft spillway
   C. chute spillway
   D. ogee spillway

9. Horizontal acceleration due to earthquake results in______________?

   A. hydrodynamic pressure
   B. inertia force into the body of the dam
   C. both (A) and (B)
   D. none of the above

10. Cyclonic precipitation is caused by lifting of an air mass due to________________?

    A. pressure difference
    B. temperature difference
    C. natural topographical barriers
    D. all of the above