Water Extraction and Drying Equipment Flashcards
6 cards from real Flood Restoration practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Water Extraction and Drying Equipment flashcards as text
How often should desiccant dehumidifiers be preferred over refrigerant dehumidifiers in flood restoration?
Answer: In low-temperature environments below 45°F
Desiccant dehumidifiers remain effective at low temperatures where refrigerant models lose efficiency, making them ideal for cold conditions.
What is the function of a negative air machine in flood restoration?
Answer: Create negative pressure to contain contaminants
A negative air machine creates negative pressure within a work area to prevent cross-contamination by filtering and exhausting air to the outside.
Which filter type must a negative air machine use when Category 3 contaminated water is involved?
Answer: HEPA filter
HEPA filters capture 99.97% of particles 0.3 microns or larger, making them mandatory for highly contaminated Category 3 water situations.
What is the typical airflow rating used to size air movers for a drying job, expressed per square foot?
Answer: 1 CFM per square foot
Industry guidelines recommend approximately 1 CFM (cubic foot per minute) of airflow per square foot of affected area when placing air movers.
What is 'stacking' in the context of dehumidifier placement for flood drying?
Answer: Placing dehumidifiers in series to maximize moisture removal
Stacking involves positioning multiple dehumidifiers in a series arrangement so that drier air from one unit feeds into the next for maximum efficiency.
Which industry standard governs the proper use of drying equipment in flood restoration in the US?
Answer: IICRC S500
The IICRC S500 Standard for Professional Water Damage Restoration sets the guidelines for equipment use, drying goals, and documentation.