CPR Antimicrobial Treatments & Disinfection 2

Question 1

When applying antimicrobials via ULV (ultra-low volume) fogging, the technician must ensure that:

Accepted Answer

The area is vacated and ventilated per the product label instructions

Answer

Occupants remain present to confirm coverage

Answer

HEPA filters are removed from air scrubbers to avoid trapping the product

Answer

Windows are sealed tightly to prevent chemical escape

Question 2

According to EPA standards, a surface sanitizer must reduce the bacterial population by at least:

Accepted Answer

99.9% (3-log reduction)

Answer

90% (1-log reduction)

Answer

99% (2-log reduction)

Answer

99.999% (5-log reduction)

Question 3

A disinfectant differs from a sanitizer primarily because a disinfectant must:

Accepted Answer

Kill a broader spectrum of pathogens including viruses and fungi

Answer

Only be used on food-contact surfaces

Answer

Achieve a 100% kill rate on all microorganisms

Answer

Require a shorter dwell time than sanitizers

Question 4

Which PPE combination is most critical when applying concentrated antimicrobial solutions?

Accepted Answer

Chemical-resistant gloves, eye protection, and appropriate respiratory protection

Answer

Hard hat and steel-toed boots

Answer

High-visibility vest and hearing protection

Answer

Tyvek suit and rubber boots without gloves

Question 5

What is the primary purpose of an antimicrobial encapsulant applied during mold remediation?

Accepted Answer

To seal residual mold spores after remediation and prevent their release into the air

Answer

To accelerate structural drying by sealing moisture pathways

Answer

To replace removed materials with a mold-resistant substrate

Answer

To provide a visible indicator of treated areas

Question 6

An EPA-registered antimicrobial product label claim means that:

Accepted Answer

The EPA has reviewed and verified the efficacy data and label claims submitted by the manufacturer

Answer

The EPA directly tested the product in its own laboratory

Answer

The product is approved for use only by licensed contractors

Answer

The product has been certified safe for use around food and children

Question 7

When using quaternary ammonium compounds (quats) as disinfectants, a common problem on heavily soiled surfaces is:

Accepted Answer

Organic soil inactivates quats, dramatically reducing their efficacy

Answer

Quats become acidic and corrode metal surfaces

Answer

Quats require heating to above 140°F to activate

Answer

Quats leave no residue and must be reapplied immediately