Page | 1
IICRC AMRT EXAM 2025| BRAND NEW ACTUAL
EXAM WITH 100% VERIFIED QUESTIONS AND
CORRECT SOLUTIONS| GUARANTEED VALUE
PACK| ACE YOUR GRADES.
1. Wood rot can occur at which percent of moisture content? - correct
answer - Above 20%
2. What is the definition of water activity (aw)? - correct answer - the
amount of free water available on the boundary layer of a substrate
(surface) for microbial amplication
3. What moisture measurement is comparable to water activity (aw)? -
correct answer - Equilibrium Relative Humidity (ERH)
4. What is the sequence (order) of procedures in a microbial remediation
project? - correct answer - identification / correction of moisture problem
// isolation of work area and HVAC registers // air flow management
(negative air) // demolition and removal of porous materials // cleaning of
remaining materials // deep cleaning of all surfaces in work area // post
remediation "clearance" testing // reconstruction
, Page | 2
5. What type of polyethylene sheeting should be used for containments? -
correct answer - 4-6 mil with medium slip factor, and has to be at 25 or
better flame retardant
6. What are pre-existing conditions? - correct answer - Things that exist
before we entered the building (for example, broken ceiling tile has
nothing to do with water damage)
7. Name Source Containment Methods - correct answer - source
containment are used for small or minimal areas of microbial growth //
goes directly to the source // can be used in local or full containment //
placing poly or carpet tack mat over moldly material prior to removal OR
placing a ceiling tile in a plastic bag // HEPA vacuuming or damp wiping
of the work area as needed // this is used if you have checked on the
other side and nothing else is done... this is it...
8. What happens to the spore counts during demolition? - correct answer -
Goes up and creates condition 2
9. What is the best slip factor for poly? - correct answer - Medium slip
10. What do we do with HVAC system and vents? - correct answer -
Cover it up
, Page | 3 g g
11. What is the best slip factor for poly? - correct answer - recommended
minimum pressure differential of -0.02 inch of water gauge (w.g.) OR -5
Pascal (Pa)
12. Work areas are______ pressurized in relationship to surrounding
unaffected areas. - correct answer - negative
13. CLean areas should be ________ pressurized in relationship to the
affected areas. - correct answer - Positive
14. During a microbial remediation, air flow should always be from a
_____ area to a _____ area. - correct answer - Clean to dirty
15. What determines the number of decon chambers in a microbial
remediation project? - correct answer - The size and kind of the job
16. In general, which remediation guidelines/standards should a
remediator be familiar with? - correct answer - S500 (Water) // S520
(Mold) // NY City Guidelines
17. The industry standard of care document for mold remediation
contractors is...? - correct answer - S520 Standard for Professional Mold
Remediation
, Page | 4 g g
18. What does "normal fungal ecology" mean? - correct answer -
g g g g g g g g g
g Condition 1 // Normal or uncontaminated building or items // Indoor
g g g g g g g g g g
g environment that may have settled spores, fungal fragments whose
g g g g g g g g
g identity; location and quantity are reflective of a normal fungal ecology
g g g g g g g g g g
g for a similar indoor environment // no treatment necessary
g g g g g g g g
19. Describe a Condition 2 - correct answer - Indoor environment which is
g g g g g g g g g g g
g primarily contaminated with settled spores that were dispersed directly
g g g g g g g g
g or indirectly from a condition 3 area // Spores landed on indoor surfaces
g g g g g g g g g g g g
g or are suspended in the air but are not actively growing // HEPA
g g g g g g g g g g g g
g vacuuming or damp wiping g g g
20. Describe a Condition 3 - correct answer - Indoor environment
g g g g g g g g g
g contaminated with the presence of actual mold growth and associated
g g g g g g g g g
g spores // Actual growth includes growth that is active or dormant, visible
g g g g g g g g g g g
g or hidden
g
21. Do you find settled spores in indoor environments with no
g g g g g g g g g
g complaints? - correct answer - Yes g g g g g
22. What are "settled spores" according to the S520? - correct answer -
g g g g g g g g g g g
g CONDITION 2 (SETTLED SPORES HAVE AN UNUSUAL g g g g g g
g DISTRIBUTION)
IICRC AMRT EXAM 2025| BRAND NEW ACTUAL
EXAM WITH 100% VERIFIED QUESTIONS AND
CORRECT SOLUTIONS| GUARANTEED VALUE
PACK| ACE YOUR GRADES.
1. Wood rot can occur at which percent of moisture content? - correct
answer - Above 20%
2. What is the definition of water activity (aw)? - correct answer - the
amount of free water available on the boundary layer of a substrate
(surface) for microbial amplication
3. What moisture measurement is comparable to water activity (aw)? -
correct answer - Equilibrium Relative Humidity (ERH)
4. What is the sequence (order) of procedures in a microbial remediation
project? - correct answer - identification / correction of moisture problem
// isolation of work area and HVAC registers // air flow management
(negative air) // demolition and removal of porous materials // cleaning of
remaining materials // deep cleaning of all surfaces in work area // post
remediation "clearance" testing // reconstruction
, Page | 2
5. What type of polyethylene sheeting should be used for containments? -
correct answer - 4-6 mil with medium slip factor, and has to be at 25 or
better flame retardant
6. What are pre-existing conditions? - correct answer - Things that exist
before we entered the building (for example, broken ceiling tile has
nothing to do with water damage)
7. Name Source Containment Methods - correct answer - source
containment are used for small or minimal areas of microbial growth //
goes directly to the source // can be used in local or full containment //
placing poly or carpet tack mat over moldly material prior to removal OR
placing a ceiling tile in a plastic bag // HEPA vacuuming or damp wiping
of the work area as needed // this is used if you have checked on the
other side and nothing else is done... this is it...
8. What happens to the spore counts during demolition? - correct answer -
Goes up and creates condition 2
9. What is the best slip factor for poly? - correct answer - Medium slip
10. What do we do with HVAC system and vents? - correct answer -
Cover it up
, Page | 3 g g
11. What is the best slip factor for poly? - correct answer - recommended
minimum pressure differential of -0.02 inch of water gauge (w.g.) OR -5
Pascal (Pa)
12. Work areas are______ pressurized in relationship to surrounding
unaffected areas. - correct answer - negative
13. CLean areas should be ________ pressurized in relationship to the
affected areas. - correct answer - Positive
14. During a microbial remediation, air flow should always be from a
_____ area to a _____ area. - correct answer - Clean to dirty
15. What determines the number of decon chambers in a microbial
remediation project? - correct answer - The size and kind of the job
16. In general, which remediation guidelines/standards should a
remediator be familiar with? - correct answer - S500 (Water) // S520
(Mold) // NY City Guidelines
17. The industry standard of care document for mold remediation
contractors is...? - correct answer - S520 Standard for Professional Mold
Remediation
, Page | 4 g g
18. What does "normal fungal ecology" mean? - correct answer -
g g g g g g g g g
g Condition 1 // Normal or uncontaminated building or items // Indoor
g g g g g g g g g g
g environment that may have settled spores, fungal fragments whose
g g g g g g g g
g identity; location and quantity are reflective of a normal fungal ecology
g g g g g g g g g g
g for a similar indoor environment // no treatment necessary
g g g g g g g g
19. Describe a Condition 2 - correct answer - Indoor environment which is
g g g g g g g g g g g
g primarily contaminated with settled spores that were dispersed directly
g g g g g g g g
g or indirectly from a condition 3 area // Spores landed on indoor surfaces
g g g g g g g g g g g g
g or are suspended in the air but are not actively growing // HEPA
g g g g g g g g g g g g
g vacuuming or damp wiping g g g
20. Describe a Condition 3 - correct answer - Indoor environment
g g g g g g g g g
g contaminated with the presence of actual mold growth and associated
g g g g g g g g g
g spores // Actual growth includes growth that is active or dormant, visible
g g g g g g g g g g g
g or hidden
g
21. Do you find settled spores in indoor environments with no
g g g g g g g g g
g complaints? - correct answer - Yes g g g g g
22. What are "settled spores" according to the S520? - correct answer -
g g g g g g g g g g g
g CONDITION 2 (SETTLED SPORES HAVE AN UNUSUAL g g g g g g
g DISTRIBUTION)
