IIRC WRT CERTIFICATION EXAM 2024-
2025 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS |ALREADY
GRADED A+|NEWEST|GUARANTEED
PASS |LATEST UPDATE
Restorers must maintain their safety certified equipment properly. This includes replacing _____ that
are damaged, replacing damaged inlet and outlet _______, and checking for _______ electrical plugs.
cords, screens, & damaged
Install _ air mover for each ________ area before you calculate additional air movers for the square feet
of surfaces and for room offsets.
1 & affected
Dehumidification reduces the ________ content of the air.
moisture
A balanced drying system is achieved when the rate of dehumidification is greater than or equal to the
rate of ___________.
evaporation
If the rate of evaporation is allowed to exceed the rate of dehumidification, _________ ______ can
occur.
secondary damage
Refrigerant dehumidifiers remove water form the air through the process of ____________. Because of
this fact, they are more efficient in higher humidity conditions. Refrigerant dehumidifiers work best
between __ degrees and __ degrees.
condensation, 70, & 90
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,Conventional refrigerant dehumidifiers under normal temperatures are effective in reducing high
humidity to a normal level - approximately 40% RH, or about __ GPP.
55
LGRs produce lower _____ _________ than conventional refrigerants and continue to remove significant
water vapor down to __ GPP.
vapor pressure & 34
Because desiccant dehumidifiers do not use condensation to remove water, they are not limited by low
dew point temperatures; therefore, they produce the lowest _____ ________ of any dehumidifier.
vapor pressure
If a structure had affected air at 85 degrees at 65% RH, the most efficient type of dehumidifier to use
would be a :
Refrigerant or Desiccant
Refrigerant
If a structure had affected air at 75 degrees at 25% RH, the most efficient type of dehumidifier to use
would be a :
Refrigerant or Desiccant
Desiccant
If a structure cannot be warmed to a temperature where LGRs would be effective, the most efficient
type of dehumidification to use would be:
Refrigerant or Desiccant
Desiccant
Air filtration devices (AFDs) are needed in water restoration work whenever high level of ____________
are being added to the air.
particulates
Cupping will generally be the first indication of abnormal moisture levels in hardwood flooring as the
______ and sides of the board absorb moisture.
bottom
Cupping in hardwood is not _________ damage, and should be dried in most cases.
permanent
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,_______ represents the "was-wood" material with the least engineering, and thus the most natural fiber
bonding. It is _________ to swelling and delamination due to its wood veneer assemblies which are
glued under extreme pressure.
Plywood & resistant
Wet particle board would normally be _______ and replaced
removed
Plastic Laminate Flooring is made of MDF and has a resin saturated appearance layer. Normally _______
in water restoration due to its construction and installation components.
removed
Remove the vinyl (flooring) and discard it if the ____________ is saturated and/or damaged; vinyl is a
vapor barrier and the time required to dry underlayment will be dramatically reduced if the vinyl is
removed.
underlayment
Partial floating of carpet can be a way to achieve drying of all surfaces simultaneously and allows ____
dry air to have more contact with wet flooring.
warm
During the drying process, all of the gypsum's original strength is restored. In fact, the dried gypsum will
normally be slightly ________ that before wetting.
stronger
In structures where the surface of the wall is covered with a non-_________ surface as a vapor barrier, it
may be necessary to removed base molding, drill holes and introduce air movement.
permeable
Airflow in the wall cavity increases the rate of ___________ and allows the wall to dry from both inside
and out.
evaporation
When ceilings are affected, drying procedures are similar to wall drying. If the ceiling is sagging or
otherwise damaged, wet drywall is drained, _______, and _________.
removed & discarded
Specific types of secondary damages associated with contents are typically:
1. Staining
2. Swelling
3. Color transfer
4. Delamination of surface/finished material
3|Page
, Inspections are more consistent when the overall goals are kept in mind:
a. Determine how wet items are:
-Monitor _____ in most circumstances.
-Use the same ______ in the same locations each day.
b. Determine if wet items are ______.
c. Determine if ________ items are dry (done).
daily, meters, drying, & affected
Restorers will know the drying job is dry and done when moisture meters verify that the structure has
reached the ______ _____.
drying goals
Moisture documentation of restoration work should include each of the following components:
a. Record of ________ Content (RMC)
b. Moisture Map - a diagram or sketch indication the boundaries and moisture level of the affected area
c. Record of ______ Conditions (RDC), or Daily Humidity Record.
Moisture & Drying
Once it has been determined that the floor can be salvaged by in-place drying, the first step is to
determine a ______ ____ for the hardwood and subfloor.
drying goal
The wood is considered dry when:
a. Hardwood and subsurfaces are within _-_ percentage points of normal Equilibrium Moisture Content
(Dry Standard).
b. Subsurfaces below hardwood are dried to within _-_ percentage points of the hardwood.
c. After wood flooring has been dried to acceptable moisture content, appropriate ___________ time
should be allowed before refinishing.
2 - 4, 2 - 4, & acclimation
The best way to prevent odors and retard microbial growth in a wet structure is to ensure that all
materials are dried _________ and _______.
thoroughly & rapidly
When the presence of mold is suspected, it is important to communicated with all parties and used
appropriate __________ measures.
protective
As with any contaminant, mold should be removed or contained before any air movers are placed in the
structure. Blowing air can spread mold spores from the ____________ area to the __________ rooms.
4|Page
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