SCOURSTOP INSTALLATION QUIZ HISTORY AND DETAILS
Quiz Date: 01/16/2010 00:24:49
Correct: 18
11) Downstream flows, Scour area, and backslopes all need to be dealt with as a result of NPDES’s_______?
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12) Which of the below eliminates maintenance, filters pollutants, facilitates groundwater recharge, and mechanically protects the soil downstream?
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13) The minimum anchor depth in cohesive soils is 18" for proper installation of ScourStop. What is the minimum # of anchors and minimum anchor depth for non cohesive soils?
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14) Which of the below applications is not proper for a vegetated ScourStop application?
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15) ScourStop can be used to prevent erosion at slope changes upon an extended runoff. It also secures TRMs to the existing soil profile, preventing breakthrough erosion under the TRMs.
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6) ScourStop may abut or overlap the discharge area.
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7) Slope changes greater than 25% off the end of pipes and openings are not recommended due to impact erosion and waterfall effects.
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8) Whatever the application, installing the anchor in a solid soil foundation is mandatory.
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9) A “French drain” is recommended for which of the following:
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10) Which of the answers below is not part of ScourStop’s Anchoring System?
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11) Downstream flows, Scour area, and backslopes all need to be dealt with as a result of NPDES’s_______?
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12) Which of the below eliminates maintenance, filters pollutants, facilitates groundwater recharge, and mechanically protects the soil downstream?
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13) The minimum anchor depth in cohesive soils is 18" for proper installation of ScourStop. What is the minimum # of anchors and minimum anchor depth for non cohesive soils?
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14) Which of the below applications is not proper for a vegetated ScourStop application?
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15) ScourStop can be used to prevent erosion at slope changes upon an extended runoff. It also secures TRMs to the existing soil profile, preventing breakthrough erosion under the TRMs.
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16) Which of the following is a reason for failure for a ScourStop Stormwater Treatment Practice?
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17) Non cohesive soils are sandy and crumbly. A geotextile is often recommended as one of the soil covers in the specification for non cohesive soils.
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18) It is acceptable to suggest that ScourStop wouldn’t work in certain applications.
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19) In an installation of lower volumes and velocities, which of the following is used in conjunction with ScourStop?
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20) ScourStop is used at the toe and base of a slope to prevent_____________?
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21) Which of the following ScourStop installation types should be used when handling flow rates greater than 12 feet/second through a large culvert and over bare soil?
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22) ScourStop is proven up to _______/square foot of shear.
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23) When installing ScourStop with no overlapping, a minimum of ___________ anchors per mat is required for proper installation.
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24) ScourStop may be used as a temporary or permanent solution to erosion and sediment transfer.
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25) When installing ScourStop over sod, the sod is recommended to be cut down to a height of how many inches.
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26) It is appropriate to install an anchor in each corner of a ScourStop mat?
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27) Installer checklists tell the crew foreman how much material to use.
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