Download IICRC Water Restoration Exam Questions and Answers and more Exams Water and Wastewater Engineering in PDF only on Docsity!
The most critical course of action in restoration during is to an begin as soon as possible Correct Answer: respond quickly & mitigation All restorers should follow the standard of care for the water restoration profession developed by the restoration industry entitled the IICRC. Correct Answer: s to help protect technicians from the many hazards associated with contaminated water losses restorers need to have ready access to several items. these items protect for all to the body. Correct Answer: potential exposures respiratory protection regulations state that the employer must provide Correct Answer: 1. medical evaluations
- fit testing
- training
WATER RESTORATION IICRC EXAM |
QUESTIONS & 100% CORRECT ANSWERS
(VERIFIED) | 2025 | GRADE A+
the contract clearly states the agreement between the building owner and the restoration contractor. the form specifies who is responsible for payment and should be signed work begins Correct Answer: before the technicians first responsibility when arriving at a water damage site is to identify communicate and eliminate if reasonably possible Correct Answer: safety hazards federal regulations apply to handling or disturbing of based paint and asbestos Correct Answer: lead After safety concerns have been addressed and the initial water source has been stopped, the restorer must complete an evaluation of the water's migration through the structure. During this process, the restorer inspects all areas. Correct Answer: potentially affected the ultimate goal is to find the edge of water migration which moves in a three dimensional path throughout the structure. this is accomplished across carpeted surfaces using a and across most hard surfaces using a (non-penetrating) moisture meter. Correct Answer: moisture sensor , non-invasive
Various cleaning and decontamination procedures must be used on Category 3 water losses, including the removal of all materials affected by the water intrusion. Correct Answer: highly porous when resistance is encountered and performing proper services in a category 3 water loss becomes a challenge restorers immediately to prevent liability and address the conflict. Correct Answer: stop work Third party experts are commonly referred to as Indoor Environmental Professionals, or . Correct Answer: IEP Losses where regulated or hazardous materials have contaminated the structure do not change the of water. Correct Answer: category pre-existing conditions should be identified documented and communicated to all parties during the initial inspection. Correct Answer: materially interested
when carpet delimitation (the loss of integrity in the adhesives used to laminate the and backings) has occurred, further damage is very likely. for this reason when extensive carpet delimitation is discovered technicians must call it to the attention go all materially interested parties , document the condition and suggest replacement. Correct Answer: primary and secondary there are number of causes for carpet delimitation - many of them relates to restoration activities Correct Answer: improper Many building materials will absorb excess water vapor and suffer damage, especially when air is allowed to remain above % relative humidity. Correct Answer: 60% Hygroscopic materials gain and lose moisture continually in an effort to with the water content in the surrounding air mass. The more hygroscopic the material, the faster it will collect water vapor, and the easier it will suffer damage. Correct Answer: equalize and secondary When water intrusion results in water running through wall cavities, inspection access holes are used to ensure that blown-in insulation has not compacted and lost its
. Wet compressed insulation should be Correct Answer: R-Value , removed
If carpet is to be re-installed, technicians should avoid cutting carpet seams unless it is absolutely Correct Answer: necessary how many gallons of water are presenting a basement that measures 30' x 25' where water is standing at a depth of 6'9" Correct Answer: 30'x25'x6.75' (9"/12") = 5062.5 cuft x 7.48= 37,867. every cubic foot of standing water present in a structure contains ___ gallons (28. liters) and each gallon (3.8 liters) of water wights 8.34pounds (3.8 kg) Correct Answer: 7. there are 3 levels of biocidal activity, according to the environmental protection agency EPA( provide starting with weakest) Correct Answer: 1. sanitizer: cleaning treatment designed to reduce # of pathogenic microorganisms to a safe level.
- disinfectant: designed to destroy or inactivate microorganisms but not necessarily their spores
- Sterilizer: a product designed to destroy or eliminate all forms of microorganisms (fungi, bacteria, viruses) and their spores.
whenever a chemical antimicrobial or biocide is used restorers must follow the label explicitly Correct Answer: directions most antimicrobials require that the area of application be vacated by and pets during application and or a period of time after application. Correct Answer: occupants
- The label is the law" get customer briefing before starting any antimicrobial / biocide treatment. Correct Answer: establishing is the best way to set restorative dying goals. A dry standard is established by obtaining a moisture reading using an material Correct Answer: dry standard , unaffected the numerical value from a moisture meter can be documented and used to monitor progress, for this reason, the amount of moisture absorbed by semiporus structural materials is measured most accurately with a moisture not a moister sensor. Correct Answer: meter
after excess water has been extracted the time needed to dry wet materials is determined by the Correct Answer: rate of evaporation as the water has been extracted the time needed to dry wet material is determined by the Correct Answer: rate of evaporation As the water is rapidly evaporated, the water vapor is removed by or. Correct Answer: dehumidification or ventilation occurs when liquid changes to a vapor. occurs as energy is increased Correct Answer: evaporation As moisture evaporates from a wet material, the surface of the material becomes because energy is released from the material. Correct Answer: cooler
. occurs when vapor changes to a liquid. occurs as energy is removed Correct Answer: condensation occurs when a solid changes to a vapor( without going through a liquid phase.)
Correct Answer: sublimation freeze-drying (sublimation) is typically used with valuable saturated books and documents. Books and documents saturated with clean water may be restorable if or as quickly as possible Correct Answer: frozen or dried is defined as the amount of moisture contained in an air sample as compared to the maximum amount the air could hold at the temperature. Correct Answer: relative humidity when the air temperature increases , it can hold water vapor Correct Answer: more In the restorative drying industry the weight measurement used to measure water vapor in air is grains per pound of air, abbreviated as GPP. This is called Correct Answer: humidity ratio which of these surface temperatures would prompt the most rapid evaporations? 60 degrees 70 degrees 80 degrees Correct Answer: 80
what is the temperature in degrees F if the humidity ratio is 70 GPP and the relative humidity is 60% Correct Answer: 72 F is the temperature at which air becomes saturated with moisture and can hold no more water vapor Correct Answer: dew point when air is cooled its capacity for water vapor is reduced, eventually If temperature is cooled enough, the relative humidity will reach % or saturation. when this occurs the air has reached its point temperature. Correct Answer: 100% dew point if surfaces are then the dew point of the surrounding air, water will condense on those surfaces and possibly cause secondary damage. if surfaces are then the dew point of the surrounding air, evaporation can occur. Correct Answer: cooler warmer is the force exerted by a gas (vapor molecules) on the surrounding environment. Correct Answer: vapor pressure
vapor pressure, dew point, and humidity ratio (GPP) are directly related to each other. when one increases the other two. when one decreases the other two. Correct Answer: increase decrease water vapor pressure is the force that drives higher convention of humidity from one space to another in an attempt to seek with lower concentration of water vapor. Correct Answer: equilibrium the ability for water vapor to diffuse through a solid material is expressed as the materials Correct Answer: permeance drying systems (provide name and brief descriptions of each) Correct Answer: open: intentional using outdoor air closed: using mechanical dehumidification only combination: using outdoor air combo with mechanical dehumidification open , closed or combination - how to decide? Correct Answer: is the outside air humidity ratio lower?
if the surface temperature of the material is higher than the temperature of the surrounding air , evaporation may occur. Correct Answer: dew point which of these surfaces temperature would have the fastest rate of evaporation? 10 degree below dew point 20 degree above dew point 30 degree above dew point Correct Answer: 30 class 1 water intrusions involve the amount of water absorption, with less than % of the area surface being wet porous materials. Correct Answer: least , 5% class 2 water intrusions involve a amount of water absorption, with more than but less than of are surface being wet porous materials Correct Answer: significant 5%-40% Class 3 water intrusion involve the amount of water absorption with more than % of area surface being wet porous materials. Correct Answer: greatest
wet material present in a class 4 water intrusion require a time to dry. Water has saturated deeply into the materials and is held or trapped as bound water. low evaporation material have absorption of water. Correct Answer: longer significant restorers must maintain their safety certified equipment properly. this includes, replacing that are damaged, replacing damaged inlet and outlet and checking for electrical plugs. Correct Answer: cords screens grounded Install _ air mover for each area before you calculate additional air movers for the square feet of surfaces and for room offsets. Correct Answer: 1 affected dehumidification reduces the content of the air Correct Answer: moisture
if a structure had affected air at 85 F at 65% RH the most efficient type of dehumidification to use would be a Correct Answer: refrigerant if a structure had affected air at 75 F at 25% RH the most efficient type of air dehumidifier to use would be Correct Answer: desiccant if a structure cannnot be warmed to a temperature where LGRs would be effective the most efficient type of dehumidifiers to use would be: Correct Answer: desiccant air filtration device (AFDs) are needed in water restoration work whenever high levels of are being added to the air Correct Answer: particulates to determine how many dehumidifiers to place : determine the feet (meters) affected or volume of air to be dehumidified by multiplying the area's length x width x height Correct Answer: cubic
note the dehumidifier rating (Association of home appliance manufacturers or AHAM rating) of the refrigerant/LGR dehumidifier being used or the process out CFM of the desiccant dehumidifier being used. Dehumidifiers AHAM ratings are measured in pins of water removed at 80 F, 60% RH for 24 hours. Correct Answer: Cupping will generally be the first indication of abnormal moisture levels in hardwood flooring as the and sides of the board absorb moisture. Correct Answer: bottom Cupping in hardwood is not damage, and should be dried in most cases. Correct Answer: permanent represents the "was-wood" material with the least engineering , and thus the most natural fiber bonding. it is to swelling and delimitation due to its wood veneer assemblies which are glued under extreme pressure. Correct Answer: plywood , resistant wet particle board would normally be Correct Answer: removed and replaced plastic laminate flooring is made if MDF and has a resin saturated appearance layer. normally in water restoration due to its construction and installation components
