IICRC AMRT 2026 CORE EXAM TEST QUESTIONS AND
SOLUTIONS RATED A+
✔✔Stachybotrys grows best when - ✔✔in continuous contact with moisture
✔✔Stachybotrys is - ✔✔ONE OF MANY MYCOTOXIN PRODUCING MOLDS
Genus of mold that contains around 50 different species; S.chartarum and
S.chlorohalonata are some of the most dangerous and referred to as black mold or toxic
black mold; linked to respiratory issues; must be disclosed
✔✔Stachybotrys can begin to colonize in - ✔✔7 to 12 days
✔✔Penicillium and Aspergillus - ✔✔RESPIRABLE, spores can be drawn into lungs
during normal breathing
common examples of fungi found in remediation work
XEROPHILIC
✔✔Penicillium and Aspergillus can colonize in - ✔✔48 to 72 hours
✔✔Xerophilic - ✔✔organisms that grow in very dry environments
✔✔Cryptococcus neoformans and Histoplasma capsulatum - ✔✔fungi associated with
BIRD and BAT droppings
inhalation can result in respiratory infections
✔✔Escherichia coli (E. coli) - ✔✔Bacteria usually found in sewage
✔✔Gram-Negative bacteria - ✔✔Most common found in sewage, more pathogenic to
humans than gram-Positive
Produce endotoxins in their cell walls which are hazardous when ingested/inhaled
✔✔Virus do not reproduce, - ✔✔they REPLICATE by invading living cells and turning
them into virus factories
✔✔to grow "Dry Rot" fungi, - ✔✔at least 20% moisture content is required
✔✔Water activity (Aw) - ✔✔amount of moisture available in food for growth
✔✔Equilibrium Relative Humidity (ERH) - ✔✔Aw X 100%
, ✔✔Control moisture and prevent mold growth by - ✔✔keeping materials dry and if they
become wet, dry them quickly
✔✔Number of federal regulations established for mold remediation industry - ✔✔0
✔✔Standard for mold remediation - ✔✔ANSI/IICRC S520 Standard and reference
guide for professional mold remediation
✔✔standard for water restoration - ✔✔S500
✔✔Condition 1 - ✔✔Normal indoor living environment that is NOT contaminated by
mold
✔✔Condition 2 - ✔✔Indoor environment contaminated with settled mold spores, but
does NOT have ACTIVE mold growth
✔✔Condition 3 - ✔✔Indoor environment that is contaminated with visible or active mold
growth
✔✔Should - ✔✔Practice/procedure is the accepted standard of care, and SHOULD be
followed, but is not mandatory by law
✔✔Shall - ✔✔Practice/procedure is mandatory due to law or regulations
✔✔Recommended - ✔✔Practice/procedure is advised or suggested, but is not
mandatory
✔✔Limitations - ✔✔Restrictions placed upon the mediator that result in a limit on the
scope, or on remediation activities
✔✔Complexities - ✔✔Situations that cause the job to become more difficult or detailed,
but that the work can still be performed accurately
✔✔Complications - ✔✔Situations arise after the start of the work that cause the job to
become more intricate, complex or perplexing and will generally necessitate a change in
scope of activities
✔✔Which categories of water can result in bacterial/fungal growth - ✔✔ALL 1,2,3
✔✔Any water that enters the home from beyond the sewer trap, regardless of visible
color or odor - ✔✔Category 3 water
SOLUTIONS RATED A+
✔✔Stachybotrys grows best when - ✔✔in continuous contact with moisture
✔✔Stachybotrys is - ✔✔ONE OF MANY MYCOTOXIN PRODUCING MOLDS
Genus of mold that contains around 50 different species; S.chartarum and
S.chlorohalonata are some of the most dangerous and referred to as black mold or toxic
black mold; linked to respiratory issues; must be disclosed
✔✔Stachybotrys can begin to colonize in - ✔✔7 to 12 days
✔✔Penicillium and Aspergillus - ✔✔RESPIRABLE, spores can be drawn into lungs
during normal breathing
common examples of fungi found in remediation work
XEROPHILIC
✔✔Penicillium and Aspergillus can colonize in - ✔✔48 to 72 hours
✔✔Xerophilic - ✔✔organisms that grow in very dry environments
✔✔Cryptococcus neoformans and Histoplasma capsulatum - ✔✔fungi associated with
BIRD and BAT droppings
inhalation can result in respiratory infections
✔✔Escherichia coli (E. coli) - ✔✔Bacteria usually found in sewage
✔✔Gram-Negative bacteria - ✔✔Most common found in sewage, more pathogenic to
humans than gram-Positive
Produce endotoxins in their cell walls which are hazardous when ingested/inhaled
✔✔Virus do not reproduce, - ✔✔they REPLICATE by invading living cells and turning
them into virus factories
✔✔to grow "Dry Rot" fungi, - ✔✔at least 20% moisture content is required
✔✔Water activity (Aw) - ✔✔amount of moisture available in food for growth
✔✔Equilibrium Relative Humidity (ERH) - ✔✔Aw X 100%
, ✔✔Control moisture and prevent mold growth by - ✔✔keeping materials dry and if they
become wet, dry them quickly
✔✔Number of federal regulations established for mold remediation industry - ✔✔0
✔✔Standard for mold remediation - ✔✔ANSI/IICRC S520 Standard and reference
guide for professional mold remediation
✔✔standard for water restoration - ✔✔S500
✔✔Condition 1 - ✔✔Normal indoor living environment that is NOT contaminated by
mold
✔✔Condition 2 - ✔✔Indoor environment contaminated with settled mold spores, but
does NOT have ACTIVE mold growth
✔✔Condition 3 - ✔✔Indoor environment that is contaminated with visible or active mold
growth
✔✔Should - ✔✔Practice/procedure is the accepted standard of care, and SHOULD be
followed, but is not mandatory by law
✔✔Shall - ✔✔Practice/procedure is mandatory due to law or regulations
✔✔Recommended - ✔✔Practice/procedure is advised or suggested, but is not
mandatory
✔✔Limitations - ✔✔Restrictions placed upon the mediator that result in a limit on the
scope, or on remediation activities
✔✔Complexities - ✔✔Situations that cause the job to become more difficult or detailed,
but that the work can still be performed accurately
✔✔Complications - ✔✔Situations arise after the start of the work that cause the job to
become more intricate, complex or perplexing and will generally necessitate a change in
scope of activities
✔✔Which categories of water can result in bacterial/fungal growth - ✔✔ALL 1,2,3
✔✔Any water that enters the home from beyond the sewer trap, regardless of visible
color or odor - ✔✔Category 3 water
