Practice Quiz

FE Civil Engineering Exam Prep - Question List

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21. A 40.0 gram sample of a radioactive element decays to 5.0 grams in 15 hours. What is the half-life of this element?
  1. 3 hours
  2. 2 hours
  3. 6 hours
  4. 7.5 hours
  5. 5 hours
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22. Which of the following species is classified as an electrolyte?
  1. CH4
  2. C6H12O6
  3. N2
  4. Na+
  5. O3
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23. Which of the following elements displays bonding characterized by a delocalized “sea of electrons?”
  1. Fluorine
  2. Nitrogen
  3. Copper
  4. Sulfur
  5. Argon
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24. 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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25. 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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