Practice Quiz

PE Civil Engineering Exam Prep - Question List

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36. What is the velocity (in ft/sec) in a rectangular concrete channel with a width of 3 feet (ft), a hydraulic grade line slope of 0.002 ft/ft, a flow depth of 1.5 ft and an assumed Manning's coefficient n = 0.014?
  1. 0.15 ft/sec
  2. 1.50 ft/sec
  3. 3.92 ft/sec
  4. None of the above
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37. The hydraulic radius of a sewer refers to which of the following?
  1. The diameter
  2. Channel perimeter
  3. One-half the diameter
  4. The ratio of the cross-sectional area of flow to the wetted perimeter
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38. For most proposed land development projects, pre- and post-development watershed drainage patterns are typically evaluated to determine if substantial hydrologic alterations are proposed that will result in which of the following?
  1. Changes to groundwater recharge
  2. Changes to water regime within a given resource area
  3. Increase runoff from the area
  4. All of the above
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39. Euler’s Formula is used to determine which of the following properties related to a simply-supported column?
  1. Maximum bending moment
  2. Critical buckling load
  3. Shear stress
  4. None of the above
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40. What is the composite C value for the following drainage area for a 10-year storm recurrence interval?Drainage area: 0.25 acres of residential lots with 40% imperviousness (C = 0.49) 0.25 acres of lawn with 0.95% slope with 0% imperviousness (C = 0.22) 0.10 acres of impervious pavement (C = 0.95)
  1. 0.20
  2. 0.45
  3. 0.55
  4. Not enough information provided
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