WATER RESTORATION exam IICRC 2025; 100%
TRUSTED Complete, trusted solutions and
explanations.
what is the temperature in degrees F if the humidity ratio is 70 GPP and the relative humidity
is 60%
72 F
____ is the temperature at which air becomes saturated with moisture and can hold no more
water vapor
dew point
when air is cooled its capacity for water vapor is reduced, eventually If temperature is cooled
enough, the relative humidity will reach ____% or saturation. when this occurs the air has
reached its ___ point temperature.
100%
dew point
if surfaces are _____ then the dew point of the surrounding air, water will condense on those
surfaces and possibly cause secondary damage. if surfaces are _____ then the dew point of
the surrounding air, evaporation can occur.
cooler
warmer
______is the force exerted by a gas (vapor molecules) on the surrounding environment.
vapor pressure
vapor pressure, dew point, and humidity ratio (GPP) are directly related to each other. when
one increases the other two _____. when one decreases the other two ______.
increase
decrease
, water vapor pressure is the force that drives higher convention of humidity from one space to
another in an attempt to seek ____ with lower concentration of water vapor.
equilibrium
the ability for water vapor to diffuse through a solid material is expressed as the materials
_____
permeance
drying systems (provide name and brief descriptions of each)
open: intentional using outdoor air
closed: using mechanical dehumidification only
combination: using outdoor air combo with mechanical dehumidification
open , closed or combination - how to decide?
is the outside air humidity ratio lower?
no : use closed drying
yes: is the outside air warmer than 70 F?
no: may use combination drying
yes: is the security, weather, customer preference
agreeable to open drying?
no: use closed drying
yes: can use open drying
if open drying is determined appropriate, the following options (while keeping building
security in mind) are available to the restorer
- using ventilation
- open windows
-install fans to create pressure differentials & air exchange
____ drying systems merge the benefit of both open and closed drying: the use of available
dry air from outside and the control offered by a closed system and mechanical
dehumidification
combination
TRUSTED Complete, trusted solutions and
explanations.
what is the temperature in degrees F if the humidity ratio is 70 GPP and the relative humidity
is 60%
72 F
____ is the temperature at which air becomes saturated with moisture and can hold no more
water vapor
dew point
when air is cooled its capacity for water vapor is reduced, eventually If temperature is cooled
enough, the relative humidity will reach ____% or saturation. when this occurs the air has
reached its ___ point temperature.
100%
dew point
if surfaces are _____ then the dew point of the surrounding air, water will condense on those
surfaces and possibly cause secondary damage. if surfaces are _____ then the dew point of
the surrounding air, evaporation can occur.
cooler
warmer
______is the force exerted by a gas (vapor molecules) on the surrounding environment.
vapor pressure
vapor pressure, dew point, and humidity ratio (GPP) are directly related to each other. when
one increases the other two _____. when one decreases the other two ______.
increase
decrease
, water vapor pressure is the force that drives higher convention of humidity from one space to
another in an attempt to seek ____ with lower concentration of water vapor.
equilibrium
the ability for water vapor to diffuse through a solid material is expressed as the materials
_____
permeance
drying systems (provide name and brief descriptions of each)
open: intentional using outdoor air
closed: using mechanical dehumidification only
combination: using outdoor air combo with mechanical dehumidification
open , closed or combination - how to decide?
is the outside air humidity ratio lower?
no : use closed drying
yes: is the outside air warmer than 70 F?
no: may use combination drying
yes: is the security, weather, customer preference
agreeable to open drying?
no: use closed drying
yes: can use open drying
if open drying is determined appropriate, the following options (while keeping building
security in mind) are available to the restorer
- using ventilation
- open windows
-install fans to create pressure differentials & air exchange
____ drying systems merge the benefit of both open and closed drying: the use of available
dry air from outside and the control offered by a closed system and mechanical
dehumidification
combination
