IICRC WRT NEWEST EXAM /PRACTICE QUESTIONS
WITH ACRUAL ANSWERS FROM A VERIFIED
SOURCE GRADED A+, (ASSURED SUCCESS).
Moisture levels of ______% will support destructive wood (rot) decaying
fungi to grow on wood surfaces. - ANSWERS-20%
relative humidity - ANSWERS-Is the ratio of the moisture suspended in air
expressed as a percentage of total moisture holding capaciry of that air at
a given temperature.
ACM - ANSWERS-Asbestos Containing Material
Daily Humidity Record - ANSWERS-Occurring at least every 12-24 hours
the recording the relative humidity and temperature to determine Grains
Per Pound (GPP).
Areas not directly wet will experience humidity elevation. Therefore... -
ANSWERS-Technicians must isolate affected areas from non affected
areas to gain best control of humidity.
How many grains are in a pound of air? - ANSWERS-7000
Humidity ratio/specific humidity - ANSWERS-The amount of water in the
air (by weight) contained in the parcel of air.
What is the goal for day 2 drying? - ANSWERS-To get the humidity under
70 to ensure mitigation.
Dew point is also known as ___. - ANSWERS-saturation temperature or
condensation
Vapor Pressure will always - ANSWERS-...seek a level of equilibrium
within a confined space.
, The Dew Point - ANSWERS-the temperature at which the air becomes
saturated with water vapor (100%RH) and condenses on the cooler
surfaces.
Where does condensation moisture cause mold? - ANSWERS-Mold
growth can occur in cold spots of homes and buildings where warm
indoor air encounters cold outside air or vice versa.
Fog - ANSWERS-When the air meets the dew point temperature.
Dew - ANSWERS-The temperature at which condensation overwhelms
evaporation.
Why might condensation be bad? - ANSWERS-Condensation with a bio
film (an organic film like soap or glue) present allows mold to grow in a
variety of surfaces from plastic to glass.
Biofilm - ANSWERS-Any organic substrate and bacteria that tends to
encourage mold growth.
Why are Thermal Cameras Important? - ANSWERS-Thermal cameras,
along with other sensors can detect the moisture perimeter of wet carpet
and cushion.
vapor pressure - ANSWERS-A gaseous force exerted by the water vapor
on its environment.
When does evaporation occur? - ANSWERS-when vapor pressure of the
ambient air (air in the room) is lower that the vapor pressure of the wet
material.
What else can increase evaporation? - ANSWERS-If the air has low Vapor
Pressure (VP) and can be heated the added thermal energy (heat) will also
increase the rate of evaporation.
The potential for damage to hygroscopic material is... - ANSWERS-
...greatest when Relative Humidity is over 70%
WITH ACRUAL ANSWERS FROM A VERIFIED
SOURCE GRADED A+, (ASSURED SUCCESS).
Moisture levels of ______% will support destructive wood (rot) decaying
fungi to grow on wood surfaces. - ANSWERS-20%
relative humidity - ANSWERS-Is the ratio of the moisture suspended in air
expressed as a percentage of total moisture holding capaciry of that air at
a given temperature.
ACM - ANSWERS-Asbestos Containing Material
Daily Humidity Record - ANSWERS-Occurring at least every 12-24 hours
the recording the relative humidity and temperature to determine Grains
Per Pound (GPP).
Areas not directly wet will experience humidity elevation. Therefore... -
ANSWERS-Technicians must isolate affected areas from non affected
areas to gain best control of humidity.
How many grains are in a pound of air? - ANSWERS-7000
Humidity ratio/specific humidity - ANSWERS-The amount of water in the
air (by weight) contained in the parcel of air.
What is the goal for day 2 drying? - ANSWERS-To get the humidity under
70 to ensure mitigation.
Dew point is also known as ___. - ANSWERS-saturation temperature or
condensation
Vapor Pressure will always - ANSWERS-...seek a level of equilibrium
within a confined space.
, The Dew Point - ANSWERS-the temperature at which the air becomes
saturated with water vapor (100%RH) and condenses on the cooler
surfaces.
Where does condensation moisture cause mold? - ANSWERS-Mold
growth can occur in cold spots of homes and buildings where warm
indoor air encounters cold outside air or vice versa.
Fog - ANSWERS-When the air meets the dew point temperature.
Dew - ANSWERS-The temperature at which condensation overwhelms
evaporation.
Why might condensation be bad? - ANSWERS-Condensation with a bio
film (an organic film like soap or glue) present allows mold to grow in a
variety of surfaces from plastic to glass.
Biofilm - ANSWERS-Any organic substrate and bacteria that tends to
encourage mold growth.
Why are Thermal Cameras Important? - ANSWERS-Thermal cameras,
along with other sensors can detect the moisture perimeter of wet carpet
and cushion.
vapor pressure - ANSWERS-A gaseous force exerted by the water vapor
on its environment.
When does evaporation occur? - ANSWERS-when vapor pressure of the
ambient air (air in the room) is lower that the vapor pressure of the wet
material.
What else can increase evaporation? - ANSWERS-If the air has low Vapor
Pressure (VP) and can be heated the added thermal energy (heat) will also
increase the rate of evaporation.
The potential for damage to hygroscopic material is... - ANSWERS-
...greatest when Relative Humidity is over 70%
