Materials Selection Flashcards
7 cards from real CFP 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
Which type of fence fabric coating provides the best combination of corrosion resistance and UV stability for chain-link fencing?
Answer: Vinyl-coated galvanized
Vinyl-coated galvanized chain-link has a zinc layer for corrosion resistance plus a PVC outer layer for UV stability and enhanced appearance.
What minimum post embedment depth is the general industry rule for fence posts in normal soil conditions?
Answer: One-third of total post length
Standard industry practice calls for embedding fence posts to at least one-third of their total length to provide adequate lateral stability.
Welded wire fencing rated at 14.5 gauge is most commonly used for which application?
Answer: Garden and light animal containment
14.5 gauge welded wire is a lighter-duty material commonly used for garden borders, plant protection, and containment of small animals.
Which fastener material should be used when installing aluminum fence components to prevent galvanic corrosion?
Answer: Stainless steel or aluminum fasteners
Stainless steel or aluminum fasteners are compatible with aluminum and will not cause galvanic corrosion that occurs when dissimilar metals contact each other in the presence of moisture.
A client requires a privacy fence that will be painted to match their home. Which material is the MOST paint-friendly and easily maintained?
Answer: Cedar wood
Cedar wood accepts paint and stain extremely well, is dimensionally stable, and is one of the most traditional and easily refinished fence materials.
When specifying ornamental steel fence panels, what coating process provides the most durable, chip-resistant finish?
Answer: Thermoplastic powder coat
Thermoplastic powder coating is electrostatically applied and oven-cured, creating a finish that is far more durable and chip-resistant than liquid-applied paints.
Which of the following fence materials has the HIGHEST thermal expansion coefficient, requiring the most generous gap allowances during installation?
Answer: Vinyl PVC
Vinyl PVC expands and contracts significantly more than metals or wood with temperature changes, requiring expansion gaps to prevent buckling or panel cracking.