The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?

Related Mcqs:

1. When the reservoir is full, the maximum compressive force in a gravity dam is produced______________?

   A. at the toe
   B. at the heel
   C. within the middle third of base
   D. at centre of base

2. The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after_________________?

   A. 50 years
   B. 150 years
   C. 200 years
   D. 250 years

3. When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be_______________?

   A. 0 and wH212
   B. wH2/2and wH2/3
   C. wH and 0
   D. OandwII

   where w is unit weight of water and H is the depth of water

4. The maximum permissible eccentricity for no tension at the base of a gravity dam is__________________?

   A. B/2
   B. B/3
   C. B/4
   D. B/6

5. The major resisting force in a gravity dam is___________________?

   A. water pressure
   B. wave pressure
   C. self-weight of dam
   D. uplift pressure

6. 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

7. The water stored in the reservoir below the minimum pool level is called_______________?

   A. useful storage
   B. dead storage
   C. valley storage
   D. surcharge storage

8. Trap efficiency of a reservoir is a function of_______________?

   A. capacity/inflow ratio
   B. capacity/outflow ratio
   C. outflow/inflow ratio
   D. none of the above

9. 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

10. The useful storage is the volume of water stored in the reservoir between________________?

    A. minimum pool level and maximum pool level
    B. minimum pool level and normal pool level
    C. normal pool level and maximum pool level
    D. river bed and minimum pool level