IICRC WATER RESTORATION EXAM
____ 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 - answers -combination
____ is the temperature at which air becomes saturated with moisture and can hold no
more water vapor - answers -dew point
____ occurs when a solid changes to a vapor( without going through a liquid phase.) -
answers -sublimation
____ represents the "was-wood" material with the least engineering , and thus the most
natural fiber bonding. It is ___to swelling and delimitation due to its wood veneer
assemblies which are glued under extreme pressure. - answers -plywood , resistant
_____ occurs when liquid changes to a vapor. Occurs as energy is increased - answers
-evaporation
______ is defined as the amount of moisture contained in an air sample as compared to
the maximum amount the air could hold at the temperature. - answers -relative humidity
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 - answers -contaminated , unaffected
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. - answers -vapor pressure
Because of their non-invasive nature and quick surveying capabilities, non-invasive
meters are the most effective tools for locating abnormal moisture behind and beneath
finishing materials such as ______ and resilient ____ floor coverings. - answers -
ceramic tile , vinyl
Class 1 water intrusions involve the ____ amount of water absorption, with less than __
% of the area surface being wet porous materials. - answers -least , 5%
Class 2 water intrusions involve a _____ amount of water absorption, with more than
___ but less than ___ of are surface being wet porous materials - answers -significant
5%-40%
Class 3 water intrusion involve the ___ amount of water absorption with more than ___
% of area surface being wet porous materials. - answers -greatest
40%
, Cleaning procedures must be employed before the drying of a category 2 water loss
can continue. At a minimum affected __________ must be removed and disposed of
and carpet must be throughly cleaned using a hot water extraction method. - answers -
carpet underlay
Cupping in hardwood is not _________ damage, and should be dried in most cases. -
answers -permanent
Cupping will generally be the first indication of abnormal moisture levels in hardwood
flooring as the ______ and sides of the board absorb moisture. - answers -bottom
Dehumidification reduces the _____ content of the air - answers -moisture
Dry rot (wood rot) can occur when wood is visibly dry yet wetter than __% moisture
content. - answers -20
Drying systems (provide name and brief descriptions of each) - answers -open:
intentional using outdoor air
Closed: using mechanical dehumidification only
Combination: using outdoor air combo with mechanical dehumidification
During the drying process all of the gypsums original strength is restored. In fact the
dried gypsum will normally be slightly ____ then before wetting. - answers -stronger
Elevating the temperature of a material will increase the _____ ________ associated
with the moisture in the material. - answers -vapor pressure
Establishing _______ is the best way to set restorative dying goals. A dry standard is
established by obtaining a moisture reading using an ____ material - answers -dry
standard , unaffected
Evaporation will increase when - answers -wet materials are made warmer
When drier air is used
Air is moved more rapidly across the wet surface
Every cubic foot of standing water present in a structure contains ___ gallons (28.3
liters) and each gallon (3.8 liters) of water wights 8.34pounds (3.8 kg) - answers -7.48
Federal regulations apply to handling or disturbing of ____ based paint and asbestos -
answers -lead
Freeze-drying (sublimation) is typically used with valuable saturated books and
documents. Books and documents saturated with clean water may be restorable if ___
or ___ as quickly as possible - answers -frozen or dried
____ 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 - answers -combination
____ is the temperature at which air becomes saturated with moisture and can hold no
more water vapor - answers -dew point
____ occurs when a solid changes to a vapor( without going through a liquid phase.) -
answers -sublimation
____ represents the "was-wood" material with the least engineering , and thus the most
natural fiber bonding. It is ___to swelling and delimitation due to its wood veneer
assemblies which are glued under extreme pressure. - answers -plywood , resistant
_____ occurs when liquid changes to a vapor. Occurs as energy is increased - answers
-evaporation
______ is defined as the amount of moisture contained in an air sample as compared to
the maximum amount the air could hold at the temperature. - answers -relative humidity
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 - answers -contaminated , unaffected
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. - answers -vapor pressure
Because of their non-invasive nature and quick surveying capabilities, non-invasive
meters are the most effective tools for locating abnormal moisture behind and beneath
finishing materials such as ______ and resilient ____ floor coverings. - answers -
ceramic tile , vinyl
Class 1 water intrusions involve the ____ amount of water absorption, with less than __
% of the area surface being wet porous materials. - answers -least , 5%
Class 2 water intrusions involve a _____ amount of water absorption, with more than
___ but less than ___ of are surface being wet porous materials - answers -significant
5%-40%
Class 3 water intrusion involve the ___ amount of water absorption with more than ___
% of area surface being wet porous materials. - answers -greatest
40%
, Cleaning procedures must be employed before the drying of a category 2 water loss
can continue. At a minimum affected __________ must be removed and disposed of
and carpet must be throughly cleaned using a hot water extraction method. - answers -
carpet underlay
Cupping in hardwood is not _________ damage, and should be dried in most cases. -
answers -permanent
Cupping will generally be the first indication of abnormal moisture levels in hardwood
flooring as the ______ and sides of the board absorb moisture. - answers -bottom
Dehumidification reduces the _____ content of the air - answers -moisture
Dry rot (wood rot) can occur when wood is visibly dry yet wetter than __% moisture
content. - answers -20
Drying systems (provide name and brief descriptions of each) - answers -open:
intentional using outdoor air
Closed: using mechanical dehumidification only
Combination: using outdoor air combo with mechanical dehumidification
During the drying process all of the gypsums original strength is restored. In fact the
dried gypsum will normally be slightly ____ then before wetting. - answers -stronger
Elevating the temperature of a material will increase the _____ ________ associated
with the moisture in the material. - answers -vapor pressure
Establishing _______ is the best way to set restorative dying goals. A dry standard is
established by obtaining a moisture reading using an ____ material - answers -dry
standard , unaffected
Evaporation will increase when - answers -wet materials are made warmer
When drier air is used
Air is moved more rapidly across the wet surface
Every cubic foot of standing water present in a structure contains ___ gallons (28.3
liters) and each gallon (3.8 liters) of water wights 8.34pounds (3.8 kg) - answers -7.48
Federal regulations apply to handling or disturbing of ____ based paint and asbestos -
answers -lead
Freeze-drying (sublimation) is typically used with valuable saturated books and
documents. Books and documents saturated with clean water may be restorable if ___
or ___ as quickly as possible - answers -frozen or dried
