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IICRC WRT Exam Questions And 100% Correct Answers Latest Update
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IICRC WRT Exam Questions And 100% Correct Answers Latest Update...
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IICRC WRT Exam Questions And 100% CorrectAnswers Latest Update
Destructive wood (rot) decaying fungi will grow on wood surfaces when the wood
surfaces reach moisture levels of ______%.-Answer 20%
Relative Humidity -Answer The ratio of the moisture suspended in air expressed as a
percentage of total moisture holding capacity of that air at a given temperature.
ACM -Answer Asbestos Containing Material
Daily Humidity Record - Answer 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. - Answer
Technicians must isolate affected areas from non affected areas to gain best control of
humidity.
Vapor Pressure will always - Answer .seek a level of equilibrium within a confined
space.
How many grains are in a pound of air? - Answer 7000
Humidity ratio/specific humidity - Answer The amount of water in the air (by weight)
contained in the parcel of air.
What is the goal for day 2 drying? - Answer To get the humidity under 70 to ensure
mitigation.
Dew point is also known as ___. - Answer saturation temperature or condensation
, Dew Point -Answer the temperature the air is cooled to when it becomes saturated with
water vapour (100%RH) at which dew or frost begins to form on cooler surfaces.
Where does Condensation Moisture cause mold? Answer Mold can grow in cold spots of
homes and buildings where warm inside air reaches cold outside air or vice-versa.
Fog - Answer When the air cools to the dew point temperature.
Condensation The temperature at which condensation overwhelms evaporation.
Why can condensation be bad? Condensation with a bio film present (an organic film
such as soap or glue) allows mold to grow in a variety of surfaces from plastic to glass.
Biofilm Any organic substrate and bacteria that tends to encourage mold growth.
Why are Thermal Cameras Important? - Answer Thermal cameras, along with other
sensors can detect the moisture perimeter of wet carpet and cushion.
vapor pressure - Answer A gaseous force exerted by the water vapor on its
environment.
When does evaporation occur? - Answer 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? - Answer 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. - Answer .greatest when Relative
Humidity is over 70%
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