Quality Control & Maintenance Practices Flashcards
7 cards from real CFI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Quality Control & Maintenance Practices flashcards as text
A CFI inspector notes that a hardwood floor was installed with face-nailing near the walls. What is the primary reason this technique is used in those areas?
Answer: The flooring nailer cannot reach close enough to the wall
Blind-nailing equipment cannot operate close to walls, so face-nailing (which is then covered by base molding) is used in those tight areas.
When evaluating carpet seam quality, what is the maximum allowable peak height per CRI installation guidelines?
Answer: No visible peak is allowed
CRI guidelines state that properly made seams should lay flat with no discernible peak when viewed from a standing position under normal lighting.
What type of floor finish requires the use of a floor buffer with a abrasive screen for recoating?
Answer: Wax finish
Wax-finished floors require screening or light abrasion to remove old wax buildup and provide mechanical adhesion before applying a new wax coat.
A quality control check on LVT flooring reveals that tiles are not lying flat and some corners are lifting. What is the most probable cause?
Answer: Insufficient trowel notch size causing inadequate adhesive coverage
Using the wrong trowel notch size results in insufficient adhesive transfer to the tile, leaving voids that allow corners to lift.
Which environmental condition must be established and maintained before, during, and after hardwood flooring installation?
Answer: Temperature between 65-75°F and humidity between 35-55%
NWFA guidelines require the installation environment to be maintained at 65-75°F and 35-55% relative humidity to match in-service conditions.
What is the primary quality concern with installing flooring over a particleboard subfloor in a bathroom?
Answer: Particleboard swells and deteriorates rapidly when exposed to moisture
Particleboard loses structural integrity when wet, swelling and crumbling, making it unsuitable as a subfloor in wet or high-humidity areas.
When conducting a final walk-through quality inspection of a completed flooring installation, which area should be inspected under raking light?
Answer: The entire floor surface at a low angle
Raking light (low-angle side lighting) across the entire floor surface reveals surface defects, height variations, and installation irregularities that are invisible under overhead lighting.