WRT CERTIFICATION 2026/2027
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
Wet materials present in a Class 4 water intrusion require a
______ time to dry. Water has saturated deeply into the
materials and is held or trapped as bound water. Low
evaporation materials have ___________ absorption water. -
correct answer-longer &significant
Restorers must maintain their safety certified equipment
properly. This includes replacing _____ that are damaged,
replacing damaged inlet and outlet _______, and checking for
_______ electrical plugs. - correct answer-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. - correct answer-1 & affected
Dehumidification reduces the ________ content of the air. -
correct answer-moisture
,A balanced drying system is achieved when the rate of
dehumidification is greater than or equal to the rate of
___________. - correct answer-evaporation
If the rate of evaporation is allowed to exceed the rate of
dehumidification, _________ ______ can occur. - correct
answer-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. - correct
answer-condensation, 70, & 90
Conventional refrigerant dehumidifiers under normal
temperatures are effective in reducing high humidity to a
normal level - approximately 40% RH, or about __ GPP. -
correct answer-55
LGRs produce lower _____ _________ than conventional
refrigerants and continue to remove significant water vapor
down to __ GPP. - correct answer-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. - correct answer-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 - correct answer-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 - correct answer-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 - correct answer-Desiccant
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
Wet materials present in a Class 4 water intrusion require a
______ time to dry. Water has saturated deeply into the
materials and is held or trapped as bound water. Low
evaporation materials have ___________ absorption water. -
correct answer-longer &significant
Restorers must maintain their safety certified equipment
properly. This includes replacing _____ that are damaged,
replacing damaged inlet and outlet _______, and checking for
_______ electrical plugs. - correct answer-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. - correct answer-1 & affected
Dehumidification reduces the ________ content of the air. -
correct answer-moisture
,A balanced drying system is achieved when the rate of
dehumidification is greater than or equal to the rate of
___________. - correct answer-evaporation
If the rate of evaporation is allowed to exceed the rate of
dehumidification, _________ ______ can occur. - correct
answer-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. - correct
answer-condensation, 70, & 90
Conventional refrigerant dehumidifiers under normal
temperatures are effective in reducing high humidity to a
normal level - approximately 40% RH, or about __ GPP. -
correct answer-55
LGRs produce lower _____ _________ than conventional
refrigerants and continue to remove significant water vapor
down to __ GPP. - correct answer-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. - correct answer-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 - correct answer-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 - correct answer-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 - correct answer-Desiccant
