Decide whether the following statements are true or false according to the text.

1) Bed loads are carried by water flow along the river bed.

2) The velocity and turbulence of water in the reservoir isn’t reduced.

3) Some suspended particles may pass the dam with water discharged through sluiceways.

4) The useful life of a reservoir depends on sediment inflow.

5) Reservoir sedimentation can be prevented.

6) The useful life of a small reservoir is longer than that of a large reservoir.

Answer the following questions.

1) What is carried by water flow along the river bed?

2) Why do the suspended particles tend to settle to the channel bottom?

3) What happens when water reaches reservoir?

4) What happens to the larger suspended particles?

5) What happens to the smaller suspended particles?

6) What happens to the very smallest suspended particles?

7) All reservoirs are filled with sediment, aren’t they?

8) When may the useful life of the reservoir be very short?

9) What must be taken into account planning a reservoir?

10) What is the way of reservoir sedimentation retarding?

What is not mentioned in the text B?

1) Reservoir sedimentation.

2) Functions of a reservoir.

3) Sediment transport by stream.

4) Physical characteristics of a reservoir.

5) Influence of bed load on the useful life of a reservoir.

6) Downstream deposition of suspended particles.

7) Site selecting for a reservoir.