| 1. |
Funding limits will often dictate the scope of work, often restricting the data density that can be collected and resultant data quality. |
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True |
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False |
| 2. |
Over-capability is one factor (e.g. using multibeam-equipped vessel with a 5-man crew to run single-line beach profiles) that could not be performed efficiently by a 2-man topographic survey team. |
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True |
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False |
| 3. |
When critical project milestones are dependent on site plan data, project engineers should expect a rapid response to a data request including expedited field-finish deliverables. |
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True |
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False |
| 4. |
A-E contracting task orders can take from ______________ to process, depending on the command. Not all districts maintain A-E labor-hour contracts that allow immediate response. |
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2 to 6 weeks |
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2 to 8 weeks |
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1 to 6 weeks |
| 5. |
Small-scope survey projects always cost __________ per unit than large efforts, due to mobilization and general overhead costs, among other factors. |
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More |
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Less |
| 6. |
Survey crews with updated technology and equipment is another indicator of performance capability and also a good productivity indicator. |
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True |
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False |
| 7. |
The general classifications for survey conditions are: water depth, channel width, fresh or salt water, water current strength, turbidity, wave conditions, and weather. |
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True |
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False |
| 8. |
Turbidity and other water conditions have no effect on the type and make of the echo sounder to be used. |
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True |
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False |
| 9. |
A general planning consideration includes: |
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Project funding |
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Response time |
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Project scope and location |
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All of the above |
| 10. |
Larger vessels (greater than 26-ft) are generally more effective (and safer) on open ocean entrance projects and their daily operating cost is ___________. |
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High |
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Low |
| 11. |
Smaller, trailerable boats (less than 26-ft) are __________ on inland navigation projects and coastal harbors and entrances. |
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Less efficient |
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More efficient |
| 12. |
Generally a __________________ vessel with 150-250 HP works best in most conditions. |
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23-ft to 33-ft |
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22-ft to 30-ft |
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23-ft to 30-ft |
| 13. |
______________ plays a major role in the vessel design. |
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Weather |
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Vessel material |
| 14. |
When using a single beam survey system, the lines should run _______________ to contours. |
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Perpendicular |
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Parallel |
| 15. |
MLLW is abbreviated as ______________________. |
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Mean Lower Low Water |
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Mean Low Water |
| 16. |
______________________ is the number of soundings per unit of area. |
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Data redundancy |
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Data density |
| 17. |
Figure 6-5 represents ________________. |
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HYPACK MAX planned survey lines covering channel and adjacent turning basin |
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HYPACK MAX Smart Corners generated planned survey lines covering irregular channel alignments |
| 18. |
Acoustic multibeam sonar systems provide full-bottom coverage from a ____________ transducer. |
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Single acoustic |
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Dual acoustic |
| 19. |
_______________ is a mode when the system will start logging data when the vessel reaches a pre-set distance from the navigation channel toes. |
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AUTO MARK |
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AUTO BREAK |
| 20. |
RECON is a mode where the operator can remove any pair of distances used for the solution of the vessel’s position. |
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True |
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False |
| 21. |
A hydrographic survey consists of rows of soundings usually taken perpendicular to the centerline of the channel. |
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True |
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False |
| 22. |
A plot is usually begun by placing the channel lines on a blank sheet or computer screen in an orientation for ___________________ sheet coverage. |
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Minimum |
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Maximum |
| 23. |
Coordinate grids should be plotted on each sheet so as not to exceed _____________ spacing at final chart scale. |
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3-in |
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5-in |
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7-in |
|
