CMI Best Practices in Cleaning Procedures 5 — Questions and Answers
Question 1: What is the main advantage of using color-coded cleaning cloths and mop heads in a facility?
- They make the cleaning cart more visually organized
- They prevent cross-contamination by designating specific tools for specific areas (Correct answer)
- They indicate the age and wear level of each cloth
- They help custodians identify which chemicals to use
Correct answer: They prevent cross-contamination by designating specific tools for specific areas
Color-coding systems assign specific colors to specific areas (e.g., red for restrooms, blue for general areas) to prevent cross-contamination between zones.
Question 2: A custodian finds that a disinfectant cleaner's solution has been sitting in a bucket for 6 hours. What should be done?
- Add more concentrate to restore potency
- Use it as long as it still smells like the product
- Discard the solution and prepare a fresh batch (Correct answer)
- Continue using it only for low-risk areas
Correct answer: Discard the solution and prepare a fresh batch
Most disinfectant solutions lose their effectiveness over time, especially when diluted; fresh solution should be prepared for each cleaning session.
Question 3: When cleaning restroom floors near urinals and toilets, which technique reduces exposure to aerosolized pathogens?
- Dry sweep the area before wet mopping
- Use high-pressure spray to rinse the floor first
- Wet mop with disinfectant using gentle, low-agitation strokes (Correct answer)
- Scrub vigorously with a stiff brush and hot water
Correct answer: Wet mop with disinfectant using gentle, low-agitation strokes
Gentle low-agitation mopping minimizes aerosolizing contaminated water droplets that could be inhaled or land on nearby surfaces.
Question 4: Which action is MOST important after completing cleaning tasks in an isolation room?
- Store the cleaning cart inside the isolation room for next use
- Remove PPE outside the room and dispose of or decontaminate properly (Correct answer)
- Immediately move to the next room without removing gloves to save time
- Report the cleaning completion to housekeeping supervisor by phone from inside the room
Correct answer: Remove PPE outside the room and dispose of or decontaminate properly
PPE must be carefully removed (doffed) in the correct order outside or at the threshold of the isolation room to prevent self-contamination.
Question 5: A floor finish appears yellowed and dull despite regular spray buffing. What is the MOST likely cause?
- Too many finish coats have been applied without stripping (Correct answer)
- The burnishing machine is running at too high a speed
- Insufficient dwell time for the spray buff solution
- The floor was cleaned with a neutral pH cleaner
Correct answer: Too many finish coats have been applied without stripping
Buildup of old finish layers causes yellowing and loss of clarity; a full strip and recoat cycle restores appearance.
Question 6: When restocking restroom supplies such as soap and paper products, at what fill level should dispensers typically be refilled?
- Only when completely empty
- When 25% or less remains to prevent running out between cleaning cycles (Correct answer)
- At every scheduled cleaning regardless of level
- When 75% remains to ensure continuous supply
Correct answer: When 25% or less remains to prevent running out between cleaning cycles
Restocking at 25% or less ensures supplies don't run out between service intervals while avoiding wasteful over-restocking of still-full dispensers.
Question 7: What is the BEST practice for storing wet mop heads between uses during a shift?
- Leave them in the mop bucket with dirty water
- Hang them head-down in a well-ventilated area to dry (Correct answer)
- Store them sealed in a plastic bag to retain moisture
- Place them flat on the floor in the janitor closet
Correct answer: Hang them head-down in a well-ventilated area to dry
Hanging mop heads upside down promotes air circulation and drying, which inhibits bacterial and mold growth between uses.
CMI Best Practices in Cleaning Procedures 5
What is the main advantage of using color-coded cleaning cloths and mop heads in a facility?