Materials Selection 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 Materials Selection flashcards as text
A field builder must select turf fiber pile height for a soccer-specific synthetic field. What range is typically specified by FIFA Quality Programme standards?
Answer: 40–60 mm
FIFA Quality Programme for football (soccer) specifies synthetic turf pile heights in the 40–60 mm range for proper ball roll and player interaction.
Which material is typically used for the backing of synthetic turf to provide dimensional stability and tuftbind strength?
Answer: Woven polypropylene with latex coating
Woven polypropylene primary backing coated with latex is standard practice, providing dimensional stability and locking turf fibers in place.
When selecting infill for a field located in a hot, sun-exposed climate, which alternative infill best reduces surface temperature compared to crumb rubber?
Answer: Thermoplastic elastomer (TPE)
Thermoplastic elastomer (TPE) infill absorbs and retains significantly less heat than crumb rubber, reducing synthetic turf surface temperatures.
A field builder is evaluating stone base materials. Which property is most critical for long-term base stability under heavy traffic loads?
Answer: Angularity and particle shape
Angularity and particle shape determine how aggregate particles interlock, which is critical for resisting deformation under heavy traffic loads.
Which standard governs the minimum shock absorption (Gmax) requirements for synthetic turf used in US football fields?
Answer: ASTM F355
ASTM F355 is the standard test method for shock-absorbing properties of playing surface systems and materials, used to measure Gmax on synthetic turf.
A field builder is selecting edging materials for a synthetic turf installation. What is the primary purpose of a concrete nailer board?
Answer: Anchor turf edges and prevent lifting
Concrete nailer boards anchor the turf edges securely, preventing lifting, fraying, or displacement at the field perimeter.
Which seam tape material provides the strongest bond and best durability for synthetic turf field seams?
Answer: Polyurethane-coated woven seam tape
Polyurethane-coated woven seam tape provides superior bond strength, flexibility, and resistance to moisture and UV degradation at turf seams.