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Exam (elaborations)

WRT Exam Questions and Answer

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Infiltration Ans- When air comes into a structure through cracks or openings in a building, usually due to negative pressure. Exfiltration Ans- When air leaves a structure through cracks or openings in a building usually due to positive pressure. What is the significance of 30% moisture con...

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  • August 3, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • WRT
  • WRT
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WRT Exam Questions and
Answers

Infiltration


Ans- When air comes into a structure through cracks or openings in a building,

usually due to negative pressure.




Exfiltration


Ans- When air leaves a structure through cracks or openings in a building

usually due to positive pressure.




What is the significance of 30% moisture content?


Ans- Can support wet rot in wood, as well as fiber saturation.




To determine initial dehumidifier capacity recommendations, what must be

known?

,Ans- Cubic feet, class of water, Dehumidifier type.




What two documents determine if evaporation and dehumidification are

complete?


Ans- Moisture map & daily humidity record.




What is HEPA?


Ans- High Efficiency Particulate Air, 99.97% effective @ .3 microns




What is the significance of 16% moisture content?


Ans- Can support mold growth in wood.




What are examples of Category 3 water?


Ans- -Sewage


- Ground surface water, rivers/streams


- all flooding from sea water


- wind-driven rain, weather related events

, - toilet backflows from beyond the P trap




What is the S-500?


Ans- Standard of Care for the Water Restoration Industry




What does AHAM stand for? What are the test conditions?


Ans- Association of Home Appliance Manufacturers




Test Conditions are 80 degrees F / 60% relative humidity over a 24 hr. time

period




What are examples of Category 2 water?


Ans- - flooding from dish washers/washing machines


- broken aquariums


- overflows from toilet on room side of P trap, some urine no feces




What is the significance of 34 GPP?

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