CMI Infection Control & Sanitation 2

Question 1

Color-coding of cleaning tools and cloths is used in professional cleaning primarily to:

Accepted Answer

Prevent cross-contamination by designating specific tools for specific areas

Answer

Make the cleaning cart more visually appealing to building occupants

Answer

Help custodians identify which products to use with each tool

Answer

Comply with OSHA labeling requirements for chemical containers

Question 2

What minimum personal protective equipment (PPE) should custodians wear when cleaning and disinfecting restrooms?

Accepted Answer

Gloves and eye protection at minimum; additional PPE per product label requirements

Answer

No PPE is required for routine restroom cleaning

Answer

Only a face mask is required

Answer

Full Tyvek suit and respirator for all restroom tasks

Question 3

Which of the following is considered a 'high-touch' surface requiring more frequent disinfection in a typical office building?

Accepted Answer

Door handles and elevator buttons

Answer

Ceiling tiles

Answer

Interior window glass

Answer

Baseboards

Question 4

MRSA stands for:

Accepted Answer

Methicillin-Resistant Staphylococcus aureus

Answer

Multi-Resistant Sanitation Agency

Answer

Microbial Reduction Standard Assessment

Answer

Maximum Recommended Surface Application

Question 5

To prevent cross-contamination, soiled microfiber cloths used in cleaning should be:

Accepted Answer

Collected separately and laundered at appropriate temperatures before reuse

Answer

Rinsed in the mop bucket and reused immediately in the same area

Answer

Discarded after a single use regardless of soil level

Answer

Air-dried and stored in the cleaning cart for the next shift

Question 6

In which situation is a sporicidal disinfectant specifically required rather than a standard disinfectant?

Accepted Answer

When disinfecting areas known or suspected to be contaminated with C. diff

Answer

When cleaning stainless steel surfaces in an office kitchen

Answer

When mopping a gymnasium floor after a sporting event

Answer

When cleaning glass windows in a school hallway

Question 7

What is the recommended CDC concentration for a sodium hypochlorite (bleach) solution used to disinfect surfaces against most bacteria and viruses?

Accepted Answer

500–1,000 ppm (approximately 1/3 to 2/3 cup of 5.25% bleach per gallon of water)

Answer

50 ppm (a few drops per gallon)

Answer

10,000 ppm (undiluted bleach)

Answer

100 ppm (a teaspoon per gallon)