CFI Tools & Equipment Operations Flashcards

What is the main advantage of a power stretcher over a knee kicker for large carpet installations?

Answer: It provides far greater stretching force across large spans to prevent rippling

A power stretcher uses extension poles to span the room and applies substantial mechanical force, ensuring proper stretch across large areas that a knee kicker cannot achieve alone.

Which trowel notch size is typically used for spreading full-spread sheet vinyl adhesive?

Answer: 1/16 × 1/16 × 1/16 inch V-notch

Sheet vinyl adhesives typically call for a fine 1/16 × 1/16 × 1/16 inch V-notch trowel to apply a thin, even adhesive coat that prevents bleed-through.

What is the function of a chalk line in flooring installation?

Answer: To snap straight reference lines on the subfloor for layout alignment

A chalk line is snapped on the subfloor to create straight reference lines that guide tile, plank, or sheet goods placement in proper alignment.

A jamb saw (undercutter) is used in flooring installation specifically to:

Answer: Trim door casings and jambs to allow flooring to slide underneath

A jamb saw undercuts door casings and jambs flush with the subfloor so flooring can slide beneath them for a clean, professional finish.

When using a tile wet saw, the blade must be kept cool and clean by:

Answer: Maintaining a continuous flow of water over the blade during cutting

A continuous water flow cools the diamond blade, suppresses silica dust, and prevents thermal cracking of the tile during cuts.

What is the purpose of the 'teeth' (grip pins) on a knee kicker head?

Answer: To grip the carpet pile and backing so force is transferred without slipping

The adjustable teeth penetrate the carpet backing to grip it securely so the installer's knee thrust transfers as stretching force rather than just pushing the tool.