AMRT Study Guide exam with complete
solution 2024/2025
The amount of moisture available on a surface that mold can use to support growth is
known as the... - ANSWER- water activity
How do molds replicate? - ANSWER- Sporulation
What molds produce respirable particles? - ANSWER- Aspergillus, penicillium
Respirable - ANSWER- Can be deeply inhaled into lungs; 5 microns
4 common viruses found in sewage - ANSWER- rotavirus, GI virus, adenovirus,
hepatitis
Name 3 primary sewage biohazards - ANSWER- virus, bacteria, parasites
3 secondary sewage biohazards - ANSWER- endotoxins/exotoxins, mycotoxins, mold
4 common gram negative bacteria found in sewage - ANSWER- e. coli, salmonella,
shigella, psuedomonas
Pathogenic - ANSWER- disease causing
MC that can support mold growth - ANSWER- 16
MC that can support wood decaying fungi - ANSWER- 20
What federal agency governs indoor air quality? - ANSWER- none
What factors affect mold growth? - ANSWER- temperature, light, water, oxygen, pH,
nutrients/food source
, What is the nutrient that mold grows best on? - ANSWER- Cellulose
Define ERH - ANSWER- equilibrium relative humidity (moisture at the surface)
Example of hydrophilic mold - ANSWER- stachybotrys chartarum
Example of mesophilic mold - ANSWER- aspergillus & penicillium
Example of xerophilic mold - ANSWER- aspergillus & penicillium
4 ways to be exposed to bioaerosols - ANSWER- ingestion; cut/puncture/injection;
dermal; inhalation
How do viruses replicate? - ANSWER- injection of RNA into live host cell
What is the common route of entry for mold exposure? - ANSWER- inhalation
What is the common route of entry for exposure to category 3 water? - ANSWER-
ingestion
What does MVOC stand for? - ANSWER- microbial volatile organic compounds
What are MVOCs? - ANSWER- odor (gaseous waste by-products) released by actively
growing molds
3 sources for MVOCs - ANSWER- reactivated pet urine, wet building materials, bacteria
The presence of MVOCs can be an indicator of: - ANSWER- unacceptable indoor air
quality, active microbial growth, incomplete remediation
What is a micron? - ANSWER- unit of measurement equal to 1/1,000,000 meters
What is the definition of viable? - ANSWER- able to reproduce (germinate)
What is the definition of non-viable? - ANSWER- not capable of germination
What is the definition of settled spores? - ANSWER- spores landed on surface but not
actively growing
solution 2024/2025
The amount of moisture available on a surface that mold can use to support growth is
known as the... - ANSWER- water activity
How do molds replicate? - ANSWER- Sporulation
What molds produce respirable particles? - ANSWER- Aspergillus, penicillium
Respirable - ANSWER- Can be deeply inhaled into lungs; 5 microns
4 common viruses found in sewage - ANSWER- rotavirus, GI virus, adenovirus,
hepatitis
Name 3 primary sewage biohazards - ANSWER- virus, bacteria, parasites
3 secondary sewage biohazards - ANSWER- endotoxins/exotoxins, mycotoxins, mold
4 common gram negative bacteria found in sewage - ANSWER- e. coli, salmonella,
shigella, psuedomonas
Pathogenic - ANSWER- disease causing
MC that can support mold growth - ANSWER- 16
MC that can support wood decaying fungi - ANSWER- 20
What federal agency governs indoor air quality? - ANSWER- none
What factors affect mold growth? - ANSWER- temperature, light, water, oxygen, pH,
nutrients/food source
, What is the nutrient that mold grows best on? - ANSWER- Cellulose
Define ERH - ANSWER- equilibrium relative humidity (moisture at the surface)
Example of hydrophilic mold - ANSWER- stachybotrys chartarum
Example of mesophilic mold - ANSWER- aspergillus & penicillium
Example of xerophilic mold - ANSWER- aspergillus & penicillium
4 ways to be exposed to bioaerosols - ANSWER- ingestion; cut/puncture/injection;
dermal; inhalation
How do viruses replicate? - ANSWER- injection of RNA into live host cell
What is the common route of entry for mold exposure? - ANSWER- inhalation
What is the common route of entry for exposure to category 3 water? - ANSWER-
ingestion
What does MVOC stand for? - ANSWER- microbial volatile organic compounds
What are MVOCs? - ANSWER- odor (gaseous waste by-products) released by actively
growing molds
3 sources for MVOCs - ANSWER- reactivated pet urine, wet building materials, bacteria
The presence of MVOCs can be an indicator of: - ANSWER- unacceptable indoor air
quality, active microbial growth, incomplete remediation
What is a micron? - ANSWER- unit of measurement equal to 1/1,000,000 meters
What is the definition of viable? - ANSWER- able to reproduce (germinate)
What is the definition of non-viable? - ANSWER- not capable of germination
What is the definition of settled spores? - ANSWER- spores landed on surface but not
actively growing
