RCS Cleaning Techniques Questions and Answers Shortcode: 3

Question 1

What is the purpose of 'dwell time' when applying a disinfectant to a surface?

Accepted Answer

To give the disinfectant enough contact time to kill pathogens effectively

Answer

Dwell time (also called contact time) is the period the disinfectant must remain wet on a surface to achieve the kill claim stated on the label.

Question 2

When cleaning wood furniture, which product should be avoided to prevent damage?

Accepted Answer

Ammonia-based or bleach-based cleaners

Answer

Ammonia and bleach can strip the finish from wood furniture, causing discoloration and permanent damage to the surface.

Question 3

What is the recommended technique for cleaning ceiling fans to minimize dust fallout?

Accepted Answer

Place a pillowcase over each blade and wipe dust inside as you pull it off

Answer

Sliding a pillowcase over each blade and pulling it off captures dust inside the case, preventing it from raining down onto furniture and floors.

Question 4

Which dilution ratio practice is critical to follow when using concentrated cleaning chemicals?

Accepted Answer

Always add the concentrated chemical to water

Answer

Adding concentrate to water (not water to concentrate) prevents dangerous splashing and exothermic reactions, especially with acid-based products.

Question 5

What is the best method to remove hard water deposits from a chrome faucet?

Accepted Answer

Soak a cloth in white vinegar and wrap around the faucet for several minutes

Answer

White vinegar's acidity dissolves calcium and lime deposits when allowed to dwell on the affected area for several minutes.

(RCS) Residential Cleaning Specialist Certification Practice Test