1|Page
IICRC WATER RESTORATION COURSE |
FREQUENTLY TESTED EXAM QUESTIONS WITH
VERIFIED ANSWERS 2025
equilibrium -correct-answer-water vapor pressure is the force that drives higher
concentrations of humidity from one space to another in an attempt to seek
equilibrium with a lower concentrations of water vapor
the ability for water vapor to diffuse through a solid material is expressed as the
materials -correct-answer-permeance
drying systems -correct-answer-open closed and combo
plywood -correct-answer-represents the was wood material with the least
engineering and that's the most natural fiber bonding it is resistant to swelling and
denomination due to its wood veneer assemblies which are glued under extreme
pressure
wet particle board would normally be -correct-answer-removed and replaced
,2|Page
Plasticity plastic laminate flooring is made of -correct-answer-MDF and has a resin
saturated appearance layer normally removed in water restoration due to its
construction and installation components
when ceilings are affected drying procedures are similar to wall drying if the
ceiling is sagging or otherwise damaged wet drywall is drained removed and
discarded -correct-answer-
turn the drying process jip rocks original strength is restored in fact it will normally
be slightly stronger than before wetting -correct-answer-
specific types of secondary damage associate with contents are typically -correct-
answer-swelling staining color transfer delamination of surface finish material
in structures where the surface on the wall is covered with a non-permeable
surface it may be necessary to remove base molding drill holes and introduce air
movement -correct-answer-
, 3|Page
air flow in the wall cavity increases the rate of evaporation and allows the wall to
drive from both inside and out -correct-answer-
remove the vinyl flooring and discard it is underlayment is saturated and or
damaged vinyl is a vapor barrier and time required to dry underlayment will be
dramatically reduced if the vinyl is removed -correct-answer-
partial floating of the carpet can be a way to achieve drying of all surfaces
simultaneously keeps ambient or warm dry air in contact with wet flooring -
correct-answer-
class 1 -correct-answer-intrusions involve only a part of an area or involve a larger
area that is only being lately affected
Class 2 -correct-answer-what are intrusions involve damage to significant areas of
carpet and cushion includes wet carpet cushion and water wicking up gypboard
wallboard
class 3 -correct-answer-what are intrusions involve entire areas of carpet and
underlay that are wet together with wet walls structure and insulation moisture
wicking up or water coming down from above
IICRC WATER RESTORATION COURSE |
FREQUENTLY TESTED EXAM QUESTIONS WITH
VERIFIED ANSWERS 2025
equilibrium -correct-answer-water vapor pressure is the force that drives higher
concentrations of humidity from one space to another in an attempt to seek
equilibrium with a lower concentrations of water vapor
the ability for water vapor to diffuse through a solid material is expressed as the
materials -correct-answer-permeance
drying systems -correct-answer-open closed and combo
plywood -correct-answer-represents the was wood material with the least
engineering and that's the most natural fiber bonding it is resistant to swelling and
denomination due to its wood veneer assemblies which are glued under extreme
pressure
wet particle board would normally be -correct-answer-removed and replaced
,2|Page
Plasticity plastic laminate flooring is made of -correct-answer-MDF and has a resin
saturated appearance layer normally removed in water restoration due to its
construction and installation components
when ceilings are affected drying procedures are similar to wall drying if the
ceiling is sagging or otherwise damaged wet drywall is drained removed and
discarded -correct-answer-
turn the drying process jip rocks original strength is restored in fact it will normally
be slightly stronger than before wetting -correct-answer-
specific types of secondary damage associate with contents are typically -correct-
answer-swelling staining color transfer delamination of surface finish material
in structures where the surface on the wall is covered with a non-permeable
surface it may be necessary to remove base molding drill holes and introduce air
movement -correct-answer-
, 3|Page
air flow in the wall cavity increases the rate of evaporation and allows the wall to
drive from both inside and out -correct-answer-
remove the vinyl flooring and discard it is underlayment is saturated and or
damaged vinyl is a vapor barrier and time required to dry underlayment will be
dramatically reduced if the vinyl is removed -correct-answer-
partial floating of the carpet can be a way to achieve drying of all surfaces
simultaneously keeps ambient or warm dry air in contact with wet flooring -
correct-answer-
class 1 -correct-answer-intrusions involve only a part of an area or involve a larger
area that is only being lately affected
Class 2 -correct-answer-what are intrusions involve damage to significant areas of
carpet and cushion includes wet carpet cushion and water wicking up gypboard
wallboard
class 3 -correct-answer-what are intrusions involve entire areas of carpet and
underlay that are wet together with wet walls structure and insulation moisture
wicking up or water coming down from above
