CCT Odor Control & Deodorization 3

Question 1

How long should enzyme-based deodorizers typically be allowed to dwell for maximum effectiveness?

Accepted Answer

As long as the manufacturer recommends—often 10–30 minutes or longer for heavy contamination

Answer

Enzyme digesters require adequate dwell time for the biological enzymes to fully break down organic matter; manufacturer guidelines should be followed, with heavier contamination often requiring longer dwell times.

Question 2

Which of the following odor types would NOT be effectively treated by enzyme digesters?

Accepted Answer

Smoke and fire odors

Answer

Enzyme digesters break down biological organic matter; smoke and fire odors come from combustion byproducts that require oxidizing agents or specialized smoke deodorizers, not enzymes.

Question 3

What is a critical safety precaution when using ozone generators for carpet odor treatment?

Accepted Answer

Keep all humans, pets, and plants out of the area during treatment as high ozone is harmful

Answer

High concentrations of ozone are hazardous to health; all occupants including humans, pets, and plants must vacate the area during ozone treatment, and the space must be thoroughly ventilated before re-entry.

Question 4

Why do urine odors sometimes return after an initial successful treatment?

Accepted Answer

Urine salts rehydrate with ambient humidity and release odor compounds again

Answer

Uric acid in urine forms crystals when dry; when humidity causes these crystals to rehydrate, they release odor compounds again—which is why full source removal or thorough treatment is essential.

Question 5

Which of the following is a 'counteractant' type deodorizer?

Accepted Answer

A product that chemically pairs with and neutralizes specific odor molecules at the molecular level

Answer

Counteractant deodorizers work by chemically pairing with and neutralizing specific odor molecules at the molecular level, permanently eliminating the odor rather than masking or digesting it.

(CCT) Carpet Cleaning Technician Certified Practice Test

(CCT) Carpet Cleaning Technician Certified Practice Test

CCT Odor Control & Deodorization 3