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Dredging and Dredged Material Disposal


Quiz Questions

1. The Corps Dredging Program is illustrated in figure_________.
Figure1-1
Figure2-1
Figure3-1
Not illustrated in any of the figures
2. The Summary of sediment sampling equipment includes drag buckets, Soil Samplers and many more.
True
False
3. Self-propelled seagoing hopper dredge is shown in figure________.
Figure3-1
Figure3-2
4. Dustpan dredge is illustrated in figure____.
Figure 3-7
Figure 3-4.
5. The summary of dredge operating characteristics is illustrated in _____.
Table 3-5
Table 1-5
6. There are three major disposal alternatives available and they are Open-water disposal, Confined disposal and Habitat development.
True
False
7. The figure 4-5 illustrates the
Schematic diagram of a dredged material containment area
Schematic diagram of the Open Water disposal
None of the above mentioned
8. Figure 4-7 does not illustrate the sequential dewatering operations possible if disposal site is large enough to contain material from several periodic dredging operations.
True
False
9. Figure 4-8 represents____________.
Hypothetical site illustrating the diversity of habitat types that may be developed at a disposal site
Sequential dewatering operations possible if disposal site is large enough to contain material from several periodic dredging operations
None of the above
10. The hopper dredge is a seagoing self-propelled vessel designed for specific dredging projects.
True
False
11. Agitation dredging is a process which intentionally discharges overboard large quantities of fine-grained dredged material by pumping past overflow, under the assumption that a major portion of the sediments passing through the weir overflow will be transported and permanently deposited outside the channel prism by tidal, river, or littoral currents.
True
False
12. The hydraulic pipeline cutter head suction dredge is not the commonly used dredging vessel and is generally not the most efficient and versatile dredge (fig. 3-3).
True
False
13. Operation of a cutter head dredge is illustrated in ______.
Figure3-5
Figure3-6
14. The __________ dredge is a hydraulic suction dredge that uses a widely flared dredging head along which are mounted pressure water jets.
Cutter head dredge
Dustpan dredge
15. The dipper dredge is basically a barge-mounted power shovel. It is equipped with a power-driven ladder structure and operated from a barge-type hull.
True
False
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