CPI Material Selection & Quality Standards Flashcards
6 cards from real CPI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPI Material Selection & Quality Standards flashcards as text
When selecting fasteners for an outdoor installation, which material is most resistant to corrosion in coastal environments?
Answer: 316 stainless steel
316 stainless steel contains molybdenum, which provides superior resistance to chloride corrosion found in coastal and marine environments.
Which lumber grade designation indicates the highest structural quality for load-bearing applications?
Answer: Select Structural
Select Structural lumber has the fewest defects and highest allowable design values, making it the top choice for load-bearing applications.
What does the 'R-value' rating on insulation materials indicate?
Answer: Thermal resistance per inch
R-value measures a material's resistance to heat flow per unit thickness, with higher values indicating better insulating performance.
Which PVC pipe schedule has the thicker wall thickness: Schedule 40 or Schedule 80?
Answer: Schedule 80 is thicker
Schedule 80 PVC has thicker walls than Schedule 40, giving it higher pressure ratings and greater durability for demanding applications.
What certification mark indicates that electrical wire and cable products have been tested for safety compliance in the US?
Answer: UL Listing
The UL (Underwriters Laboratories) Listing mark confirms that the product has been tested and meets specific safety standards recognized by authorities having jurisdiction in the US.
Which adhesive type is most appropriate for bonding CPVC pipe fittings?
Answer: CPVC cement (yellow/orange)
CPVC-specific cement (typically yellow or orange) is chemically formulated for CPVC material and provides the proper solvent weld bond required for hot water applications.