IICRC WATER RESTORATION TECHNICIAN EXAM 2024-2025 NEWEST!!! ACTUAL COMPLETE 400 QUESTIO, Exams of Construction

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COMPLETE 400 QUESTIONS

IICRC WATER RESTORATION

TECHNICIAN EXAM 2024- 2025

NEWEST!!! ACTUAL

COMPLETE 400 QUESTIONS

COMPLETE 400 QUESTIONS What document dictates the Standards for the Water Damage Restoration Industry? - ANSWER-ANSI/IICRC S-500 Water Damage Standards What needs to be signed before restoration begins? - ANSWER-Work authorization Why do we extract water from carpet multiple times? - ANSWER-To reduce drying times After the water is extracted, what dictates the rate of drying? - ANSWER-Evaporation

COMPLETE 400 QUESTIONS Is it OK to cut carpet seems? - ANSWER-Only as a last resort What is the purpose of the skin on carpet cushion? - ANSWER-Ease of installation Before a technician can wear a respirator, what needs to be done? - ANSWER-Medical evaluation and fit testing What is our first responsibility when arriving at any water loss? - ANSWER-Safety

COMPLETE 400 QUESTIONS Name two substances found in construction that are federally regulated - ANSWER-Lead and asbestos For safety with what should all are drying equipment be equipped? - ANSWER-Ground plug What happens to the VP in a material when we heat it? - ANSWER-It increases What should we do with equipment that has damaged electrical cords? - ANSWER- Remove from service and replace the cords

COMPLETE 400 QUESTIONS How should we address blown cellulosic insulation in wall cavities when it becomes wet? - ANSWER-Remove it Why is plywood more restorable than particleboard? - ANSWER-Less processing If you have water trapped between plywood and sheet vinyl, what should you do? - ANSWER-Remove it Can we normally dry wet particleboard under sheet vinyl? - ANSWER-No

COMPLETE 400 QUESTIONS Drying materials require us to control which two things...? - ANSWER-Evaporation and dehumidification Can drywall be restored after it becomes wet? - ANSWER-Yes Wet wood subflooring Under stone or tile drying strategy requires... - ANSWER-Small amounts of airflow and warm air Can you use small amounts of airflow and warm air to dry concrete? - ANSWER-Yes When you increase vapor pressure by heating, what happens to material's

COMPLETE 400 QUESTIONS What does Hygroscopic mean? - ANSWER- Vapor absorbing Describe some examples of secondary damage - ANSWER-Microbial (mold) and bending or folding The secondary damage happened in Hygroscopic or non-Hygroscopic materials? - ANSWER-Hygroscopic materials What is a balance drying system? - ANSWER- When the rate of evaporation does not exceed the rate of dehumidification

COMPLETE 400 QUESTIONS If you use the outdoor air in your dry process, is that an open or closed drying system? - ANSWER-Open How do you know if you can use the outdoor air in your drying strategy? - ANSWER-If it is warmer and dryer What does an air filtration device (AFD) do?

• ANSWER-Remove particulate from the air When can an AFD used? - ANSWER-In category three water losses When should an indoor environmental professional "IEP" be used? - ANSWER- When individuals are at risk or compromised

COMPLETE 400 QUESTIONS What does it mean when we say, "nature always seeks an equilibrium?" - ANSWER- Areas of high vapor pressure seeks areas of low vapor pressure Considering the following measurements, which is the highest humidity ratio (or dewpoint temperature or vapor pressure) 9 0F/30% OR 40F/40% OR 50 F/80% OR 70 F/70% - ANSWER-70 F/70% Considering the following measurements, which is the lowest humidity ratio (or dewpoint temperature or vapor pressure) 90F/30% OR 40F/40% OR 50 F/80% OR 70 F/70% - ANSWER-40 F/40%

COMPLETE 400 QUESTIONS If the inside is "warm and wet" then what conditions would be necessary outside if we were to use the outdoor air to dry the structure? - ANSWER-Warmer and dryer Category one water; 45°F in the house. How would you address the drain? - ANSWER- Warm the structure up When water evaporates, does the surface become cooler or hotter? Why? - ANSWER- Cooler because the molecules absorb energy What relative humidity (and above) can support microbial growth? - ANSWER-70%

COMPLETE 400 QUESTIONS At 70°F and 60% relative humidity... What temperature is required to bring relative humidity to 30%? - ANSWER- 92 How do you determine cubic feet in a room?

• ANSWER-Length by width by height How many gallons are in a cubic foot of water? - ANSWER-7. How many gallons are in a basement that is 40' x 30' with a 4'3" water depth? - ANSWER-38,

COMPLETE 400 QUESTIONS How many air movers are installed in each affected room to start? - ANSWER- 1 Add one air mover for every "how many" square feet of floor (including 2 feet up walls)? - ANSWER-50 to 70 Add another air mover for every "how many" square feet for wet walls above 2 feet high? - ANSWER-100 to 150 Add another air mover for every "what" that is larger than 18 inches? - ANSWER-Offset What tool do you use to remove moisture from the air? - ANSWER-Dehumidifier

COMPLETE 400 QUESTIONS What measures to daily drying data include?

• ANSWER-Atmospheric temperature changes/humidity ratio changes (including mechanical devices)/material moisture changes/material temperature changes What can an LGR do that I conventional refrigerant cannot? - ANSWER-Go down to 34GPP True or false: a refrigerant dehumidifier produces the lowest vapor pressure? - ANSWER-False

COMPLETE 400 QUESTIONS Which dehumidifier would work best on a crawlspace that is open to cold, outdoor air?

• ANSWER-Desiccant The IICRC formula requires three things to determine the initial D humidification needs... What are they? - ANSWER-cubic feet, class, dehumidifier type How much initial pints of Dehumidification does the IICRC recommend for a class 2, LG dehumidifier at 25000 cubic feet? - ANSWER- 500 How much initial pints of Dehumidification does the IICRC recommend for a class 3,