IICRC WRT Study set 2025/26 Study Pack | High-
Scoring Verified Quizzes and Answers
Use the ___ rule to ensure you are not overloading individual circuits. ex. 16 amps, 20 amps
circuit - 80%
Biological contaminates in a water loss - virus, bacteria, fungi
Indoor environmental professional - IEP
When is a IEP recommended for a water loss? - when high risk individuals are involved in
a cat. 3 water loss
sanitary water,
ex. broken SUPPLY line, overflow of sink or tub(no contamenants), rainwater, broken toilet
tanks, toilet bowls unused - Cat. 1 water loss
contains significant contamination.
ex. Discharge from diswasher, overflow washing machine, urine/no fecal matter, punctured
water bed, broken fish bowl/tank - cat.2
grossly contaminated
ex. sewage , wasteline, rising water from rivers, seas, lakes, hurricane wind and rain - cat
3 water loss
Remediation needs to happen BEFORE restorative drying starts on which losses? - cat 2
and 3
IEP test for what? - asbestos and mold
PACM - potential asbestos containing material
wet drywall on ceiling which has sagged must be drained, removed, and disposed. - wet
ceiling dry wall
DON - respirator, gloves, suit
DOFF - suit, gloves, respirator
disposal of all waste water in accordance with ____ and ___ law - local and state
, place waste water in a ____. - sanitary sewer system.
Air Temperature - dictates the capacity of the air
- warmer hair increases the capacity
-cooler air decreases the capacity of the air
Relative Humidity - percent of water vapor in the air compared to the maximum amount
of water vapor the air can contain
Air temperature increases so Relative Humidity (Rh)_____? - decreases. tempt and RH
are inversely proportional
Dew Point - Air temperature is lowered to the point where the RH is at 100% - air
saturation point
Humidity Ratio (gpp) - actual weight of the water vapor in the air
Vapor Pressure - the force excreted on the surrounding environment due to the weight of
the water vapor in the air
Boundry Layer - water evaporates the surface becomes cooler and saturated
Dehumidification - decreasing the amount of water vapor in the air
Balanced Drying - rate of evaporation is equal t or less than the rate of dehumidification
Hygroscopic - easily absorb water, first to become damage
-fast drying
Mold can't grow if the RH is what? - 60% or lower
Fiber saturation point - total saturation of a material
EMC ( equilibrium moisture content) - air and materials are balanced with their
environment
Permeance - the ability of water vapor to pass through a material
Vapor Barriers have a permeance factor of ____ - 1 or below
surface water:
free water:
Scoring Verified Quizzes and Answers
Use the ___ rule to ensure you are not overloading individual circuits. ex. 16 amps, 20 amps
circuit - 80%
Biological contaminates in a water loss - virus, bacteria, fungi
Indoor environmental professional - IEP
When is a IEP recommended for a water loss? - when high risk individuals are involved in
a cat. 3 water loss
sanitary water,
ex. broken SUPPLY line, overflow of sink or tub(no contamenants), rainwater, broken toilet
tanks, toilet bowls unused - Cat. 1 water loss
contains significant contamination.
ex. Discharge from diswasher, overflow washing machine, urine/no fecal matter, punctured
water bed, broken fish bowl/tank - cat.2
grossly contaminated
ex. sewage , wasteline, rising water from rivers, seas, lakes, hurricane wind and rain - cat
3 water loss
Remediation needs to happen BEFORE restorative drying starts on which losses? - cat 2
and 3
IEP test for what? - asbestos and mold
PACM - potential asbestos containing material
wet drywall on ceiling which has sagged must be drained, removed, and disposed. - wet
ceiling dry wall
DON - respirator, gloves, suit
DOFF - suit, gloves, respirator
disposal of all waste water in accordance with ____ and ___ law - local and state
, place waste water in a ____. - sanitary sewer system.
Air Temperature - dictates the capacity of the air
- warmer hair increases the capacity
-cooler air decreases the capacity of the air
Relative Humidity - percent of water vapor in the air compared to the maximum amount
of water vapor the air can contain
Air temperature increases so Relative Humidity (Rh)_____? - decreases. tempt and RH
are inversely proportional
Dew Point - Air temperature is lowered to the point where the RH is at 100% - air
saturation point
Humidity Ratio (gpp) - actual weight of the water vapor in the air
Vapor Pressure - the force excreted on the surrounding environment due to the weight of
the water vapor in the air
Boundry Layer - water evaporates the surface becomes cooler and saturated
Dehumidification - decreasing the amount of water vapor in the air
Balanced Drying - rate of evaporation is equal t or less than the rate of dehumidification
Hygroscopic - easily absorb water, first to become damage
-fast drying
Mold can't grow if the RH is what? - 60% or lower
Fiber saturation point - total saturation of a material
EMC ( equilibrium moisture content) - air and materials are balanced with their
environment
Permeance - the ability of water vapor to pass through a material
Vapor Barriers have a permeance factor of ____ - 1 or below
surface water:
free water:
