Download WATER RESTORATION exam IICRC Exam Questions and Answers and more Exams Nursing in PDF only on Docsity!
Questions and Answers
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 the contract clearly states the agreement between the building owner and the restoration contractor. the form
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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-
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worker and occupant ______ and safety are the 1st priority on every sewage loss. areas affected by category 3 water intrusion are marked and posted as potentially hazardous. - Correct Answer ✅health 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
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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%
Questions and Answers
the primary goal of the initial extraction of the affected area is to contain further ______ of the water within the structure. - Correct Answer ✅migration Whenever carpet must be disengaged from the tackless strip, a ____ ______ and carpet awl must be used. - Correct Answer ✅knee kicker the majority of cushion has a skin or mesh on the top side. the purpose of this skin is to ease_____ during installation: it is not a vapor barrier - Correct Answer ✅carpet stretching 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.
Questions and Answers
every cubic foot of standing water present in a structure contains ___ gallons (28.3 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
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materials such as ______ and resilient ____ floor coverings. - Correct Answer ✅ceramic tile , vinyl a thermo hygrometer is used to monitor any air that can influence the ________ and or ______ within a restorative drying environment. - Correct Answer ✅temperature , humidity (relative humidity) to evaluate the progress of structural drying projects, restorers should measure: moisture in ____ being dried (moisture content readings ) __ being used to dry affected materials (psychrometric readings) __produced by mechanical systems (dehumidifiers) - Correct Answer ✅materials air air evaporation will increase when - Correct Answer ✅wet materials are made warmer
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when drier air is used air is moved more rapidly across the wet surface 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
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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 if a material is not drying well what would be the most effective method of increasing evaporation? - Correct Answer ✅warm the material one of the most effective methods of drying wet wood under hard surfaces is - Correct Answer ✅heated airflow. Use of Psychometrics chart to complete the following calculation
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80 F at 60% RH 53 F at 80% RH - Correct Answer ✅91 GPP 48 GPP
- which of the two conditions has the lowest vapor pressure? 53 F at 80% RH = 48 GPP *what is the surface temperature at which condensation would become a risk for air which is 80 F at 60% 102 F (dew point) 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
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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?
Questions and Answers
no : use closed drying yes: is the outside air warmer than 70 F? no: may use combination drying yes: is the security, weather, customer preference agreeable to open drying? no: use closed drying yes: can use open drying if open drying is determined appropriate, the following options (while keeping building security in mind) are available to the restorer - Correct Answer ✅- using ventilation
- open windows -install fans to create pressure differentials & air exchange ____ drying systems merge the benefit of both open and closed drying: the use of available dry air from outside and the control offered by a closed system and mechanical dehumidification - Correct Answer ✅combination
Questions and Answers
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 40% 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
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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 A balanced drying system is achieved when the rate of dehumidification 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, _________ ______ can occur. - Correct Answer ✅secondary damage Refrigerant dehumidifiers remove water from the air through the process of ____ because of this fact, they are more efficient in higher humidity conditions. refrigerants
