Cleaning Methods & Equipment Usage Flashcards
7 cards from real CCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Cleaning Methods & Equipment Usage flashcards as text
Absorbent compound cleaning uses a moist, absorbent carrier material. After working it into the carpet, how is the compound and soil removed?
Answer: Vacuuming with a commercial upright or canister vacuum
Once the absorbent compound dries with the soil absorbed into it, thorough vacuuming removes the compound along with the trapped soil.
Which equipment component on a truck-mount converts engine power into vacuum and water pressure?
Answer: Blower (vacuum producer) and pump assembly
The blower generates vacuum lift while the high-pressure pump drives water through the system; both are typically powered directly by the vehicle engine or a separate power unit.
When cleaning stairs with a portable unit, which practice minimizes the risk of overwetting?
Answer: Make multiple wet passes followed by a single dry extraction pass
Multiple wet passes followed by dedicated dry extraction strokes ensures maximum moisture removal from the thinner stair tread, reducing drying time and overwetting risk.
What is the function of a water softener installed on a truck-mount system?
Answer: It removes minerals that reduce chemical effectiveness and cause scale buildup
Hard water minerals (calcium, magnesium) interfere with detergent performance and deposit scale in hoses and heat exchangers; a water softener removes these minerals.
A rotary extractor (RX-20 style) should NOT be used on which carpet type?
Answer: High-pile shag or frieze carpet
The spinning heads of a rotary extractor can tangle and mat high-pile shag or frieze fibers, causing severe damage that is difficult or impossible to reverse.
What role does grooming (raking) play immediately after hot water extraction?
Answer: It sets the pile in one direction, speeds drying, and improves appearance
Post-cleaning grooming with a carpet rake or groom tool sets the pile uniformly, opens fibers for better airflow, and leaves a professional appearance.
Which portable extractor specification most directly indicates its ability to remove moisture from carpet?
Answer: Water lift (inches of water column) and CFM airflow
Water lift measures vacuum strength and CFM measures airflow volume; together they determine how effectively moisture and soils are extracted from the carpet.