AMRT 2027 EXAMINERS ANSWERS AND QUESTIONS
SET A+
✔✔Formula for Cubic Feet per Minute required for a given number of ACH - ✔✔(CF x
ACH) /60
✔✔Formula for Number of AFD units - ✔✔(CF x ACH) /60 = CFM req.
THEN
CFM req/CFM of Machine
✔✔ The amount of moisture available on a surface that mold can use to support growth
is known as the... - ✔✔water activity
✔✔How do molds replicate? - ✔✔Sporulation
✔✔What molds produce respirable particles? - ✔✔Aspergillus, penicillium
✔✔Respirable - ✔✔Can be deeply inhaled into lungs; 5 microns
✔✔4 common viruses found in sewage - ✔✔rotavirus, GI virus, adenovirus, hepatitis
✔✔Name 3 primary sewage biohazards - ✔✔virus, bacteria, parasites
✔✔3 secondary sewage biohazards - ✔✔endotoxins/exotoxins, mycotoxins, mold
✔✔4 common gram negative bacteria found in sewage - ✔✔e. coli, salmonella, shigella,
psuedomonas
✔✔Pathogenic - ✔✔disease causing
✔✔MC that can support mold growth - ✔✔16
✔✔MC that can support wood decaying fungi - ✔✔20
, ✔✔What federal agency governs indoor air quality? - ✔✔none
✔✔What factors affect mold growth? - ✔✔temperature, light, water, oxygen, pH,
nutrients/food source
✔✔What is the nutrient that mold grows best on? - ✔✔Cellulose
✔✔Define ERH - ✔✔equilibrium relative humidity (moisture at the surface)
✔✔Example of hydrophilic mold - ✔✔stachybotrys chartarum
✔✔Example of mesophilic mold - ✔✔aspergillus & penicillium
✔✔Example of xerophilic mold - ✔✔aspergillus & penicillium
✔✔4 ways to be exposed to bioaerosols - ✔✔ingestion; cut/puncture/injection; dermal;
inhalation
✔✔How do viruses replicate? - ✔✔injection of RNA into live host cell
✔✔What is the common route of entry for mold exposure? - ✔✔inhalation
✔✔What is the common route of entry for exposure to category 3 water? - ✔✔ingestion
✔✔What does MVOC stand for? - ✔✔microbial volatile organic compounds
✔✔What are MVOCs? - ✔✔odor (gaseous waste by-products) released by actively
growing molds
✔✔3 sources for MVOCs - ✔✔reactivated pet urine, wet building materials, bacteria
✔✔The presence of MVOCs can be an indicator of: - ✔✔unacceptable indoor air
quality, active microbial growth, incomplete remediation
✔✔What is a micron? - ✔✔unit of measurement equal to 1/1,000,000 meters
✔✔What is the definition of viable? - ✔✔able to reproduce (germinate)
✔✔What is the definition of non-viable? - ✔✔not capable of germination
✔✔What is the definition of settled spores? - ✔✔spores landed on surface but not
actively growing
SET A+
✔✔Formula for Cubic Feet per Minute required for a given number of ACH - ✔✔(CF x
ACH) /60
✔✔Formula for Number of AFD units - ✔✔(CF x ACH) /60 = CFM req.
THEN
CFM req/CFM of Machine
✔✔ The amount of moisture available on a surface that mold can use to support growth
is known as the... - ✔✔water activity
✔✔How do molds replicate? - ✔✔Sporulation
✔✔What molds produce respirable particles? - ✔✔Aspergillus, penicillium
✔✔Respirable - ✔✔Can be deeply inhaled into lungs; 5 microns
✔✔4 common viruses found in sewage - ✔✔rotavirus, GI virus, adenovirus, hepatitis
✔✔Name 3 primary sewage biohazards - ✔✔virus, bacteria, parasites
✔✔3 secondary sewage biohazards - ✔✔endotoxins/exotoxins, mycotoxins, mold
✔✔4 common gram negative bacteria found in sewage - ✔✔e. coli, salmonella, shigella,
psuedomonas
✔✔Pathogenic - ✔✔disease causing
✔✔MC that can support mold growth - ✔✔16
✔✔MC that can support wood decaying fungi - ✔✔20
, ✔✔What federal agency governs indoor air quality? - ✔✔none
✔✔What factors affect mold growth? - ✔✔temperature, light, water, oxygen, pH,
nutrients/food source
✔✔What is the nutrient that mold grows best on? - ✔✔Cellulose
✔✔Define ERH - ✔✔equilibrium relative humidity (moisture at the surface)
✔✔Example of hydrophilic mold - ✔✔stachybotrys chartarum
✔✔Example of mesophilic mold - ✔✔aspergillus & penicillium
✔✔Example of xerophilic mold - ✔✔aspergillus & penicillium
✔✔4 ways to be exposed to bioaerosols - ✔✔ingestion; cut/puncture/injection; dermal;
inhalation
✔✔How do viruses replicate? - ✔✔injection of RNA into live host cell
✔✔What is the common route of entry for mold exposure? - ✔✔inhalation
✔✔What is the common route of entry for exposure to category 3 water? - ✔✔ingestion
✔✔What does MVOC stand for? - ✔✔microbial volatile organic compounds
✔✔What are MVOCs? - ✔✔odor (gaseous waste by-products) released by actively
growing molds
✔✔3 sources for MVOCs - ✔✔reactivated pet urine, wet building materials, bacteria
✔✔The presence of MVOCs can be an indicator of: - ✔✔unacceptable indoor air
quality, active microbial growth, incomplete remediation
✔✔What is a micron? - ✔✔unit of measurement equal to 1/1,000,000 meters
✔✔What is the definition of viable? - ✔✔able to reproduce (germinate)
✔✔What is the definition of non-viable? - ✔✔not capable of germination
✔✔What is the definition of settled spores? - ✔✔spores landed on surface but not
actively growing
