Download IICRC WATER RESTORATION COURSE EXAM | QUESTIONS & 100% CORRECT ANSWERS (VERIFIED) 2025 and more Exams Water and Wastewater Engineering in PDF only on Docsity!
what is the most critical course of action in restorative drying Correct Answer: to respond quickly what is the standard care for water restoration professionals developed by the restoration industry entitled Correct Answer: IICRC S to help protect technicians from the many hazards associated with contaminated water losses restores need to have ready access to several items these items protect for all Correct Answer: potential exposures to the body respiratory protection regulations state that the employer must provide Correct Answer: medical evaluations fit testing and training as a minimum medical requirement technicians performing water damage restoration services need medical consultation with their
IICRC WATER RESTORATION COURSE
EXAM | QUESTIONS & 100% CORRECT
ANSWERS (VERIFIED) | LATEST 2025
GRADE A+
Correct Answer: primary health care physician for appropriate immunizations the contract clearly states the agreement between the building owner and the restoration contractor the form specifies who is responsible for payment and the terms of Correct Answer: payment and should be signed before work begins the most common safety hazards associated with water damaged structures results in Correct Answer: slips and falls federal regulations apply to the handling of Correct Answer: lead-based paint and asbestos after safety concerns have been addressed and the initial water source has been stopped the restore must complete an evaluation of the waters migration through the structure during this process to restore inspects all Correct Answer: potentially affected areas the ultimate goal is to find the edge of water migration which moves in a three- dimensional path through the structure this is accomplished across carpeted surfaces using a Correct Answer: moisture sensor and across most hard surfaces using a moisture meter non-penetrating moisture meter
Third Party Experts are commonly referred to as indoor environmental professionals or IEPs Correct Answer: pre-existing conditions should be identified documented and communicated to all Correct Answer: materially interested parties during the initial inspection when carpet delamination the loss of Integrity in the adhesives used to laminate the primary and secondary backing has occurred further damage is very likely for this reason when extensive carpet delamination is discovered ignitions must call it to the attention of all materially interested parties document the condition and Correct Answer: replacement there are a number of causes for carpet delamination many of them related to Correct Answer: improper restoration activities typical causes of carpet delamination are Correct Answer: folding or stretching carpet When Wet overly aggressive extraction improper specified underlay improper installation improper removal of taxes trip improper floating of carpet excessive wear pet damage
hygroscopic materials gain and lose moisture continually in an effort to equalize 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 Correct Answer: secondary damage 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 it Correct Answer: r value cleaning procedures must be employed before the drying of a category 2 water loss can continue at minimum affected underlay must be removed and disposed of and the carpet must be thoroughly cleaned using a hot water extraction method Correct Answer: various cleaning and decontamination procedures must be used on Category 3 water losses including the removal of all Correct Answer: porous materials affected by water intrusion mini building materials will absorb excess water vapor and suffer damage especially when the air is allowed to remain above Correct Answer: 60% relative humidity
every cubic foot of standing water present in a structure contains Correct Answer: 7.48 gallons each gallon of water weighs Correct Answer: 8.34 lb there are three levels of biocidal activity according to the Environmental Protection Agency Correct Answer: sanitizer disinfectant sterilizer whenever a chemical antimicrobial or biocide is used restorers must follow the Correct Answer: directions explicitly most antimicrobials require that the area of application be Correct Answer: vacated by occupants and pants during application and for a period of time after application establishing a dry standard is the best way to set restorative drying goals a dry standard is established by obtaining a moisture reading using Correct Answer: unaffected material
the numerical value from a moisture meter can be documented and used to monitor progress for this reason the amount of moisture absorbed by semi Power Structural Materials is measured most accurately with a moisture Correct Answer: moisture meter not a moisture sensor because of their non-invasive nature and quick surveying capabilities non-invasive meters are the most effective tools for locating abnormal moisture behind and beneath finishing materials such Correct Answer: ceramic tile and vinyl floor coverings a thermo hygrometer is used to monitor any air that can influence the Correct Answer: temperature and humidity within a restorative drying environment after physically removing excess water the time required to dry wet materials is influenced most by the Correct Answer: rate of evaporation as the water is rapidly evaporated the vapor water is removed by Correct Answer: dehumidification or ventilation as moisture evaporates from a wet material the surface of the material becomes Correct Answer: cooler because energy is released from the material
restores must use a third-party IEP in situations that involve severe public health issues high-risk occupants living or working in the structure or extensive microbial contamination that can affect worker or occupant health Correct Answer: inspections are more consistent when the overall goals are kept in mind Correct Answer: monitor daily in most circumstances how wet items are use the same meters in the same locations each day determine if wet items are drying determine it affected items are dry or done cupping will generally be the first indication of abnormal moisture levels in hardwood flooring as the bottom and sides of the board absorb moisture Correct Answer: cupping in hardwood is not permanent damage and should be dried in most cases what are the most effective methods of drying wet wood under hard surfaces is Correct Answer: heated air flow relative humidity is defined as the amount of moisture contained in the air as compared to Correct Answer: the maximum amount the air could hold that temperature
in the restorative drying industry the weight measurement used to measure water vapor in air is Correct Answer: grains per pound of air abbreviated as gpp what is gpp called Correct Answer: the humidity ratio what is the dew point Correct Answer: the temperature at which air becomes saturated with moisture Vapor or can hold no more water vapor when air is cooled its capacity for water is reduced eventually if temperature is cooled enough the relative humidity will reach Correct Answer: 100% or saturation when this occurs the air has reached its dew point temperature if surfaces are cooler than the dew point of the surrounding air water will condense on those surfaces and possibly cause secondary damage if surfaces are warmer than the dew point of the surrounding air evaporation can occur Correct Answer: what is vapor pressure Correct Answer: the force exerted by a liquid or gas on the surrounding environment
Correct Answer: water vapor pressure is the force that drives higher concentrations of humidity from one space to another in an attempt to seek equilibrium with a lower concentrations of water vapor the ability for water vapor to diffuse through a solid material is expressed as the materials Correct Answer: permeance drying systems Correct Answer: open closed and combo plywood Correct Answer: represents the was wood material with the least engineering and that's the most natural fiber bonding it is resistant to swelling and denomination due to its wood veneer assemblies which are glued under extreme pressure wet particle board would normally be Correct Answer: removed and replaced Plasticity plastic laminate flooring is made of Correct Answer: MDF and has a resin saturated appearance layer normally removed in water restoration due to its construction and installation components
when ceilings are affected drying procedures are similar to wall drying if the ceiling is sagging or otherwise damaged wet drywall is drained removed and discarded Correct Answer: turn the drying process jip rocks original strength is restored in fact it will normally be slightly stronger than before wetting Correct Answer: specific types of secondary damage associate with contents are typically Correct Answer: swelling staining color transfer delamination of surface finish material in structures where the surface on the wall is covered with a non-permeable surface it may be necessary to remove base molding drill holes and introduce air movement Correct Answer: air flow in the wall cavity increases the rate of evaporation and allows the wall to drive from both inside and out Correct Answer: remove the vinyl flooring and discard it is underlayment is saturated and or damaged vinyl is a vapor barrier and time required to dry underlayment will be dramatically reduced if the vinyl is removed Correct Answer:
dehumidification Correct Answer: reduces the moisture content of the air a balance drying system is achieved when the rate of the vacation is greater than or equal to the rate of Correct Answer: evaporation if the rate of evaporation is allowed to exceed the rate of dehumidification Correct Answer: secondary damage can occur Refrigerant vapors or mist should not be inhaled because Correct Answer: condensation because of this fact they are more efficient and higher humidity conditions refrigerant dehumidifiers work best between 70 degrees and 90 degrees Fahrenheit air filtration devices are needed in water restoration work whenever high levels Correct Answer: particulates are being added to the air conventional refrigerant dehumidifiers under normal temperatures are effective in reducing high humidity to a normal level approximately 40% RH or about 55 gpp Correct Answer:
LGR will continue to remove significant water vapor down 34 gpp Correct Answer: because desiccant dehumidifiers do not use condensation to remove water they are not limited by the low dew point temperatures therefore they produce the lowest vapor pressure of any dehumidifier Correct Answer: when's the next been determined that the floor can be salvaged by in place drying the first step is to determine a dry standard for the hardwood and subfloor Correct Answer: equilibrium moisture content Correct Answer: is the dry standard hardwood and sub surfaces are within two to four percentage points of normal equilibrium moisture content dry standard Correct Answer: subsurface is below hardwood are dried two within two to four percentage points of the hardwood Correct Answer:
as with any contaminant mold should be removed or contained before any air movers are placed in the structure blowing air can spread mold spores and contaminate the entire area Correct Answer: dry rot wood rot can occur when wood is visibly dry it wetter than 20% moisture content Correct Answer: sanitizer Correct Answer: cleaning treatment designed to reduce the number of pathogenic microorganisms to a safe level this is the lowest level of biocidal activity disinfectant Correct Answer: a product designed to destroy or inactivate microorganisms but not necessarily their spores sterilizer Correct Answer: product designed to destroy or eliminate all forms of microorganisms fungi bacteria and viruses Etc and their spores the Forno's of drying Correct Answer: what's wet how wet is it is it drying is it done
moisture content Correct Answer: moisture content is the amount weight of moisture in a material compared to its oven-dried weight expressed as a percentage dry standard Correct Answer: I'm waste your reading a pain from a known unaffected sample that allows the restore to set up drying goals for the affected structure and contents made from the same material evaporation will increase Correct Answer: what materials are made warmer dryer air is used and when air is move more rapidly across a wet surface evaporation .....liquid changing to a vapor Correct Answer: condensation is vapor changing to a liquid Correct Answer: sublimation is a solid changing to a vapor without going through the liquid phase occurs when solid water is exposed to a vacuum in a freeze drying chamber commonly known as freeze drying Correct Answer:
