North Carolina General Contractors Practice Exam

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Prepare for the North Carolina General Contractors Exam with comprehensive study materials, quizzes, and resources designed to enhance your knowledge and boost your confidence. Our expertly crafted questions reflect the exam format to ensure you are well-prepared!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What type of storm runoff must erosion control measures protect against?

5 year storm
10 year storm
20 year storm
50 year storm

The correct answer is: 10 year storm

The consideration for erosion control measures focuses on the intensity and volume of runoff generated from storm events of varying recurrence intervals. A 10-year storm refers to a rainfall event that is statistically expected to occur once in a 10-year period. This type of storm carries significant amounts of water that can lead to rapid runoff and potential erosion, making it a critical benchmark for designing erosion control measures. Erosion control must be adequate to handle the runoff that typically results from at least a 10-year storm because this level of storm intensity is likely to lead to more severe erosion issues due to greater water flow. When developing erosion control strategies, it's essential to address this frequency to ensure that the measures will be effective during common high runoff events. While higher frequency storms—like the 20-year or 50-year storms—might pose a more severe risk, the 10-year storm is commonly referenced as a standard for planning purposes in order to prevent erosion in a variety of conditions. Overall, utilizing a 10-year storm event as a baseline provides a balanced approach to minimizing erosion risks while still being practical for construction and development projects.