CCT Spotting Techniques & Stain Removal 5

Question 1

When a stain has been treated but a slight shadow or ghost remains after drying, the technician should NEXT:

Accepted Answer

Re-treat with the appropriate spotter, allow dwell time, then extract and dry thoroughly

Answer

A residual shadow often means incomplete removal; a second targeted treatment with correct dwell time and thorough extraction frequently eliminates the remaining discoloration.

Question 2

Chewing gum embedded in carpet pile is BEST removed by:

Accepted Answer

Freezing it with dry ice or aerosol freeze spray, then shattering it

Answer

Freezing gum makes it brittle and non-sticky so it can be shattered and picked out without pulling or damaging carpet fibers.

Question 3

A rust stain on carpet is BEST treated with which type of chemical agent?

Accepted Answer

Acidic rust remover containing oxalic or phosphoric acid

Answer

Rust (iron oxide) is dissolved by chelating agents and acidic compounds like oxalic or phosphoric acid, which convert the iron into a soluble form that can be rinsed away.

Question 4

What is a 'volatile dry solvent' and why is adequate ventilation required when using one?

Accepted Answer

A petroleum or chemical solvent that evaporates rapidly, releasing vapors that can be flammable or harmful if inhaled

Answer

Volatile dry solvents evaporate quickly and release chemical vapors that can be flammable and toxic; proper ventilation protects the technician and prevents fire hazards.

Question 5

After completing spot treatment on a carpet, why is it important to groom the pile before drying?

Accepted Answer

It lifts and realigns the pile so fibers dry in an upright, uniform position and texture is restored

Answer

Grooming after treatment realigns crushed or matted pile fibers, ensuring even drying and restoring the carpet's appearance and texture.

(CCT) Carpet Cleaning Technician Certified Practice Test

(CCT) Carpet Cleaning Technician Certified Practice Test

CCT Spotting Techniques & Stain Removal 5