IICRC WATER DAMAGE RESTORATION
TECHNICIAN EXAM SCRIPT WITH SOLUTIONS
2026
◉ Which system uses mechanical dehumidification ___________________
Answer: Closed drying sytem
◉ Which system intentionally uses outside drier air for
dehumidification? _________________ Answer: Open drying system
◉ A balanced drying is when the rate of dehumidification is equal to
or greater than the rate of ___________________. Answer: Evaporation
◉ The higher the temperature and the lower the relative humidity,
the faster the potential rate of __________________. Answer: Evaporation
◉ High pressure goes to ________ pressure. Answer: Low
◉ Humidity or pressure always seeks ________________. Answer:
Equilibrium
◉ What is the actual weight of water/moisture vapor in the air
called? ___________ _________ Answer: Humidity ratio
,◉ The temperature at which air becomes saturated with moisture
and condenses on cooler surfaces is the ___________ __________
temperature. Answer: Dew point
◉ Humidity ratio is related to _________ _____________. Answer: Vapor
pressure
◉ What is the degree or ability of water vapor (moisture) to pass
through materials? _________ Answer: Permeance
◉ ___________ pressure is the force exerted by water or gas on the
surrounding environment. Answer: Vapor
◉ The amount of moisture in the air as compared to how much can
be put into the air at that temperature is called _____________
______________. Answer: Relative Humidity
◉ Evaporation can occur at a greater rate when the materials
surface temperature is above the ________ point _______________.
Answer: Dew Point Temperature
◉ What two readings do we need from a thermo-hygrometer in
order to work the psychrometric chart? Answer: Relative Humidity
and Dry Bulb Temperature
, ◉ Surfaces that are _______________ absorb moisture until they reach
equilibrium and are sometimes permanently damaged. Answer:
Hygroscopic
◉ At what point does condensation occur at a condition of 750F
(240C) at 60% RH? ______ Answer: 60 degrees faranhieght
◉ What does PPE stand for? _______________ ______________ _______________
Answer: Personal Protective Equipment
◉ Check how far moisture has spread in carpet with pad:
M____________ S___________ Answer: Moisture sensor
◉ Can the tool in #2 tell us which layer is wet? Yes or No Answer: No
◉ To check the temperature and RH: ________ - _____________. Answer:
Thermo-Hygrometer
◉ All individuals who will be wearing respirators must be medically
cleared, ______ tested, and trained to don/ ______ the respirator and
safety equipment. Answer: Fit tested and don/doff
TECHNICIAN EXAM SCRIPT WITH SOLUTIONS
2026
◉ Which system uses mechanical dehumidification ___________________
Answer: Closed drying sytem
◉ Which system intentionally uses outside drier air for
dehumidification? _________________ Answer: Open drying system
◉ A balanced drying is when the rate of dehumidification is equal to
or greater than the rate of ___________________. Answer: Evaporation
◉ The higher the temperature and the lower the relative humidity,
the faster the potential rate of __________________. Answer: Evaporation
◉ High pressure goes to ________ pressure. Answer: Low
◉ Humidity or pressure always seeks ________________. Answer:
Equilibrium
◉ What is the actual weight of water/moisture vapor in the air
called? ___________ _________ Answer: Humidity ratio
,◉ The temperature at which air becomes saturated with moisture
and condenses on cooler surfaces is the ___________ __________
temperature. Answer: Dew point
◉ Humidity ratio is related to _________ _____________. Answer: Vapor
pressure
◉ What is the degree or ability of water vapor (moisture) to pass
through materials? _________ Answer: Permeance
◉ ___________ pressure is the force exerted by water or gas on the
surrounding environment. Answer: Vapor
◉ The amount of moisture in the air as compared to how much can
be put into the air at that temperature is called _____________
______________. Answer: Relative Humidity
◉ Evaporation can occur at a greater rate when the materials
surface temperature is above the ________ point _______________.
Answer: Dew Point Temperature
◉ What two readings do we need from a thermo-hygrometer in
order to work the psychrometric chart? Answer: Relative Humidity
and Dry Bulb Temperature
, ◉ Surfaces that are _______________ absorb moisture until they reach
equilibrium and are sometimes permanently damaged. Answer:
Hygroscopic
◉ At what point does condensation occur at a condition of 750F
(240C) at 60% RH? ______ Answer: 60 degrees faranhieght
◉ What does PPE stand for? _______________ ______________ _______________
Answer: Personal Protective Equipment
◉ Check how far moisture has spread in carpet with pad:
M____________ S___________ Answer: Moisture sensor
◉ Can the tool in #2 tell us which layer is wet? Yes or No Answer: No
◉ To check the temperature and RH: ________ - _____________. Answer:
Thermo-Hygrometer
◉ All individuals who will be wearing respirators must be medically
cleared, ______ tested, and trained to don/ ______ the respirator and
safety equipment. Answer: Fit tested and don/doff
