Construction Techniques Flashcards
7 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 7 Construction Techniques flashcards as text
When installing synthetic turf on an athletic field, what is the correct sequence for the base layers?
Answer: Subgrade, drainage aggregate, stone base, turf surface
The correct sequence is compacted subgrade first, followed by drainage aggregate, then the stone base layer, and finally the turf surface.
Which compaction method is most appropriate for fine-grained cohesive soils in field construction?
Answer: Sheepsfoot roller
Sheepsfoot rollers are designed for cohesive fine-grained soils because their protruding feet knead and densify clay-rich materials effectively.
What is the primary purpose of a perimeter drain system installed around a sports field?
Answer: To intercept and remove groundwater and surface runoff
Perimeter drains intercept groundwater from surrounding areas and collect surface runoff to keep the field drainage system from being overwhelmed.
When constructing a sand-based root zone for a golf green, what is the typical depth specification?
Answer: 8 to 12 inches
USGA-method golf greens specify a sand root zone of 12 inches in depth to provide adequate drainage while supporting healthy turfgrass roots.
In field construction, what does 'subgrade preparation' primarily involve?
Answer: Shaping and compacting native or imported soil to the design grade
Subgrade preparation involves grading and compacting the soil foundation layer to the designed slopes and elevations before any base materials are placed.
Which type of geotextile fabric is typically used beneath drainage aggregate in field construction to prevent soil migration?
Answer: Non-woven geotextile with appropriate AOS rating
Non-woven geotextiles with an appropriate Apparent Opening Size (AOS) allow water passage while filtering soil particles to prevent aggregate contamination.
What is the recommended maximum slope for a natural grass athletic field to ensure adequate drainage without causing playability issues?
Answer: 2.0%
A 2% maximum slope (1:50) balances effective surface drainage with safe and level playability conditions for most athletic field applications.