CMI CMI Restroom Sanitation & Infection Control

Question 1

What is the correct cleaning sequence when sanitizing a public restroom?

Accepted Answer

Top to bottom, clean to dirty

Answer

Cleaning from top to bottom and clean to dirty prevents recontaminating already-cleaned surfaces.

Question 2

Which color-coding practice helps prevent cross-contamination in custodial operations?

Accepted Answer

Using different colored cloths for restrooms vs. other areas

Answer

Color-coded microfiber cloths and mops prevent pathogens from restrooms being transferred to food service or office areas.

Question 3

What does 'dwell time' mean when using a disinfectant in a restroom?

Accepted Answer

The time the disinfectant must remain wet on a surface to be effective

Answer

Dwell time is the required contact time a disinfectant must remain on a surface to kill targeted pathogens as specified on the label.

Question 4

Which area of a restroom typically harbors the highest concentration of pathogens?

Accepted Answer

Toilet handle and seat

Answer

Toilet handles and seats are high-touch surfaces directly exposed to fecal matter, making them hotspots for pathogens.

Question 5

What minimum PPE should custodial technicians wear when cleaning restrooms?

Accepted Answer

Disposable gloves and eye protection

Answer

Gloves prevent skin contact with pathogens and chemicals, while eye protection guards against splashes of contaminated water or cleaning agents.

(CMI) Certified Custodial Technician Practice Test