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UPDATED 2024/
IICRC WRITTEN Test
(110 SETS) RATED A+
#1. During the inspection process, restorers shall make a reasonable effort to C. identify and address potential safety hazards #2. A significant amount of water absorption and evaporation load where wet porous materials represent ~5% to ~40% of combined ceiling, walls, and flooring surface areas and where low evaporation materials and assemblies are minimally wet is B. class 2 #3. Multiple extraction of salvageable materials, especially porous material (e.g. Carpet, cushion) often are required to: decrease drying time #4. To enhance drying, restorers should manage both ambient temperature and surface temperatures of affected materials #5. Water damage restoration services should not begin until after the: restorer has entered into an adequately written contract. #6. Two tools that should be used to properly disengage most stretched-in carpet Knee kicker and carpet awl #7. When inspecting a water damage structure, restorers should inspect: all potentially affected areas. #8. Buckled or damaged particle board should
removed and replaced with new material. #9. upon entering a building, professional moisture detection equipment should be used to evaluate and document: applicable psychrometric conditions and moisture content or level readings. #10. When wet, a structural material that loses most of its structural integrity, but regains its strength when dry, is: Concrete #11 Initially, a method of search for abnormal moisture behind ceramic tile or resilient flooring can be accomplished by using a non-penetrating (non-invasive) moisture meter #12. To minimize damage and reduce drying time, reduce drying time, restorers should: begin mitigation as soon as safely possible #13. The moisture content of structural materials should be measured with a A. moisture meter #14. When accessible from below, to dry wet wood subflooring under stone or tile flooring, restorers can use low-humidity air and D. vapor barrier #15. Biocides designed to destroy or eliminate all forms of microbial life and their spores are D. sterilizers #16. When carpet is wet it can be delaminated by D. improper handling and disengaging #17. To minimize or control aerosolized soils or contaminants during restoration, restorers can: B. install one or more air filtration devices (AFDs) #18. When pre-existing damage is discovered, restorer should
B. an open drying system #29. To confirm that proper drying conditions were established and also that drying goals were met, restorers should maintain written logs to include: B. an atmospheric humidity record and materials moisture content record #30. A closed drying system is recommended during restoration when A. outdoor humidity ratio is higher than indoor humidity ratio #31. the rating for water removal of refrigerant dehumidification normally is expressed in pints of water removed in 24 hours at standard AHAM test conditions of C. 80 F (27C) and 60% RH #32. The temperature at which air reaches 100% relative humidity is known as the C. dew point temperature #33. Water-saturated carpet cushion (pad, underlay) should be removed and disposed if A. saturated with Category 2 or 3 water #34. If vapor pressure in ambient air is lower than the vapor pressure in wet materials, the most likely outcome will be A. condensation #35. Generally, refrigerant dehumidifiers are most efficient in the temperature range of C. 70F to 90F (21C to 32C) #36. When performing water-damage restoration services and mold growth is discovered, initially restorers should D. use appropriate PPE, containment or other engineering controls #37. Water that originates from a sanitary water source and does not pose a substantial risk from exposure is
A. category 1 #38. Before applying biocides in water-damaged structures, restorers should D. turn on the HVAC system to help spread biocides evenly #39. One of the primary purposes of the initial extraction is to D. contain migrating water #40. On a structural drying project, if indoor conditions are 88 F (31 C) and 60% RH, condensation begins to occur on structural materials with a surface temperature cooler than A) 72 F (22 C) #41. The ratio of the mass of water vapor to the mass of dry air in a given moist air sample usually expressed in grams per pound (grams per kilogram) of dry air is the C. Saturation factor #42. To effectively dry wood sub flooring below sheet vinyl flooring, restorers might need to B. remove and discard the vinyl covering #43. Water vapor pressure always seeks D. equilibrium #44. At a humidity ratio of 45 gpp (6.4 g/kg) and a temperature of 60 F (16 C), the relative humidity is B. 36% #45. After finished wood flooring has been dried to acceptable moisture content A. appropriate acclimation time may be required before refinishing #46. When carpet has been affected by sewage and should be removed and any materially interested party disagrees, restorers can choose to B. clean and save the carpet if possible
#56. Water intrusion where a significant amount of water is trapped or bound within low evaporation building materials or assemblies, may require longer drying time is defined as D) class 4 #57. Materials continue to absorb and desorb water vapor until they have reached D) equilibrium with the environment #58. Drying equipment should remain in operation on site until D. affected materials meet predetermined drying goals #59. The potential ease of water vapor to pass through a material is b. permeability (had different answer but this makes more sense) #60. For safety, air movers shall be equipped with C. a grounded electrical plug #61. The drying goal for solid hardwood flooring is within A. 2-4 percentage points of the dry standard #62. Generally, the drying system that creates the lowest atmospheric vapor pressure is D. desiccant dehumidification #63. Applying thermal energy directly to wet materials can be used to accelerate evaporation by increasing the temperature and the waters D. Vapor pressure #64. The atmospheric conditions with the lowest humidity ratio are A. 40 F AND 80% RH #65. Blowing dry air into wall cavities helps dry them primarily by D. increasing the rate of evaporation #66. The atmospheric condition equivalent to a humidity ratio of 54 gpp (7. g/kg) is
90 F and 37% RH #67. When air is holding the maximum amount of water vapor possible at the existing temperature and pressure the air is D) saturated #68. Water that contains significant contamination and has the potential to cause discomfort or sickness if contacted or consumed by humans is B) category 2 #69. Of the sub flooring materials listed below, the one most resistant to water damage is A) plywood #70. After removing bulk water, if required, concrete should be dried using a combination of controlled dry air movement and atmospheric temperature or A) heat energy transfer #71. When category 2 water enters a building the contaminated material that should be disposed is D) carpet cushion (pad, underlay) #72. The primary purpose of the "skin" on most carpet cushion (pad, underlay) is to C. Ease carpet stretching during installation #73. When moisture causes wood flooring to expand (swell) with edges higher than the centers the planks are D) cupped #74. When placing air movers in a building that had water intrusion, the formula begins with each room receiving this many air movers prior to affected area and inset/offset calculations A) 1
B? couldn’t read answers #84. Products used to reduce, but not necessarily microorganisms from the D. #85. wood rot fungi can start growing at a moisture content at or above d. 20% #86. As moisture evaporates from a wet material, the surface of the material becomes A) cooler #87. The most effective type of dehumidifier to use when drying a dirt crawl space when outside air temp is 50 F (10 C) is a D. desiccant #88. On-going damage that occurs due to absorption of humidity into materials is referred to as B) secondary damage #89. A drying job should not be considered complete until D) moisture meter readings match the drying goals #90. The amount of moisture contained in an air sample as a percentage of the maximum amount the sample could contain at a significant temperature is C) relative humidity #91. A low-grain refrigerant (LGR) dehumidifier D) reduces vapor pressure below that of a conventional refrigerant #92. When the outside humidity ratio (gpp or g/kg) is significantly lower than indoors, restorers can consider B) closing up the structure #93. When the rate of evaporation is higher than the rate of dehumidification the most likely result will be
#94. In a category 3 water intrusion with elevated risk situation (infants, elderly, etc within a building) restorers or MIPs should A) retain an IEP to assess levels of contamination #95. The PPE for restorers handling emergency services on sewage back flows shall include A) protective face mask, water-proof gloves, and rubber boots #96. When using LGR dehumidifier in a class 3 water infusion containing 16000 ft3 the initial water removal recommendation consideration is A. 300 pints B. 400 pints C. 500 pints D. 750 pints c. 500 #97. When using LGR dehumidifier that removes 144 pints at AHAM Test conditions, the recommended consideration for the number installed initially on a class 2 water intrusion with 36000 ft3 is A. 3 B. 4 c. 5 D. 6 c. 5 #98. When using conventional refrigerant dehumidifier that removes 115 pints at AHAM test with water intrusion with 22000 ft3 is B. #99. When using a desiccant dehumidifier that is rated to process 630 clm, the initial recommended number for consideration on a class 4 water intrusion in 4000 ft building with a 9 - foot ceiling height
changing water from a liquid to evaporation is c. evaporation when removing wet cushion (pads, underlay), carpet seams should be A. circulating air where visible or suspected contamination is present can D. a high potential for structural or microbial damage to hygroscopic materials occurs when relative humidity is c. 40% when drying an unfinished basement saturated with category 1 water and the indoor temperature is below 40 F, the project requires A. sublimental heat evaporation can occur at a greater rate when the material surface temperature is B the initial number of air movers to replace in scenario 1. the following diagram will be used to answer 110... Hide definitions Choose a Study Mod
