| 1. |
Dams more than 6 ft high fall under TCEQ jurisdiction and are to comply with TCEQ regulations on dam safety regardless of whether the TCEQ requires a water right for the impoundment. |
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True |
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False |
| 2. |
A failure would be considered an unintended release of impounded water due to the loss of all or a portion of the dam or affiliated structure. |
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True |
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False |
| 3. |
All freeboard calculations should include the expected future settlement and consolidation of the embankment after construction in addition to wave run-up. |
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True |
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False |
| 4. |
The intent of the precipitation analysis is to find the ________________ that would produce the most critical loading on the dam. |
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Critical storm size, |
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Location, |
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Orientation, |
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Duration, |
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All the above |
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None of the above |
| 5. |
The PMP depths for a particular storm size and range of storm durations are not used to determine the critical storm duration for a dam. |
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True |
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False |
| 6. |
The Snyder Unit Hydrograph Method and the NRCS Dimensionless Unit Hydrograph Method are the two commonly used precipitation loss methods. |
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True |
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False |
| 7. |
NRCS Hydrologic Soil Groups and Uniform Infiltration (Loss) Rates are shown in _________. |
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Figure 5.1 |
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Figure 5.2 |
| 8. |
Typically, two parameters are needed to develop a Snyder Unit Hydrograph and they are _________. |
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TL, lag time & T lead time |
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Cp, shape factor & T lead time |
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Cp, shape factor & TL, lag time |
| 9. |
How many parameters are used in the NRCS Unit Hydrograph method? |
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One |
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Two |
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Three |
| 10. |
In models that require routing of the design-storm runoff hydrographs through a stream channel, either a hydrologic or hydraulic routing method may be used. These hydrologic methods are either empirical or semi-empirical. |
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True |
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False |
| 11. |
Level Pool Routing is the most typically used method for routing a hydrograph through a reservoir in hydrologic models. |
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True |
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False |
| 12. |
The con in a Kinematic Wave streamflow routing method is that the parameters cannot be estimated from field observations. |
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True |
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False |
| 13. |
Emergency spillways are generally cut into an abutment and have little or no erosion protection from flows discharging through them. |
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True |
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False |
| 14. |
______________________ is a hydrologic condition where the inflow hydrograph is equal to the full design flood. |
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Design-flood breach |
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Sunny-day breach |
| 15. |
The __________________ is determined by the equation (Eq 8.3), which is LU = 0.012 * KS * sq root [ 2*C *H ] |
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Inundation length in miles |
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Total discharge from the breach |
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