CFB Drainage & Irrigation Systems Flashcards
6 cards from real CFB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CFB Drainage & Irrigation Systems flashcards as text
What is the function of a detention or retention basin associated with an athletic field complex?
Answer: To manage stormwater runoff and reduce peak discharge rates
Detention and retention basins capture stormwater runoff from athletic field complexes to slow and reduce peak discharge rates, protecting downstream areas.
In an athletic field drainage design, what is the purpose of an outlet control structure?
Answer: To regulate the rate at which water exits the drainage system
An outlet control structure regulates flow rates leaving the drainage system to prevent overwhelming downstream infrastructure during heavy rain events.
What does the 'perc test' (percolation test) measure when evaluating a site for athletic field construction?
Answer: The rate at which water drains through the soil
A percolation test measures how quickly water moves through the soil profile, which determines what drainage improvements are needed for the field.
Which irrigation system component stores and executes programmed watering schedules for an athletic field?
Answer: Central controller
The central controller is the computerized unit that stores irrigation programs and sends signals to open and close zone valves on the scheduled watering cycle.
What is 'slit drainage' and what is its primary advantage for athletic fields?
Answer: Narrow trenches filled with sand that provide rapid drainage paths through clay soils
Slit drainage consists of narrow sand-filled trenches cut into existing fields, providing rapid lateral drainage paths through slow-draining clay soils without full reconstruction.
When designing irrigation for a multi-use athletic complex, what is the primary reason to divide the field into separate irrigation zones?
Answer: To match application rates to the water needs of different areas and reduce system pressure requirements
Separate irrigation zones allow tailored scheduling for areas with different sun exposure, traffic patterns, and water needs, while keeping hydraulic demand within pump and pipe capacity.