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IICRC WRITTEN TEST (110 SETS) 2024 / 25
LATEST UPDATE | GRADE 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
#18. When pre-existing damage is discovered, restorer should D. document and bring it to the attention of materially interested parties #19. Rapid drying of structural materials is achieved by A. promoting evaporation and dehumidification or ventilation #20. When carpet and cushion (pad, underlay) are saturated with Category 3 water B. Both should be removed for proper disposal #21. To minimize safety concerns and to speed structural drying, gypsum board (drywall) ceilings that are saturated and sagging should be A. drained, removed quickly, and properly disposed #22. The force exerted by water molecules in the air on surrounding surfaces is b. Vapor Pressure (page 11) #23. Generally, fastest rate of evaporation from wet materials with a 70F (21C) surface temperature [0.67 VP] would be an environment with A. 60F (4C) and 80% RH #24. Two hazardous materials more likely found in older building that require compliance with laws and regulations when handled are
C. lead-based paint and asbestos #25. As humidity ratio increases (or decreases) another psychrometric chart property that also increases (or decreases) is C. vapor pressure #26. Ventilating a structure during the initial stages of restoration can be effective way to enhance drying by reducing the build up of C. humidity #27. When using government-registered biocide, restorers shall C. apply according to label directions #28. Intentionally using outdoor air to reduce indoor humidity is known as 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
#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 #47. As the air temperature increases, relative humidity B. decreases #48. Changing a solid directly into a vapor without going through a liquid phase is known as B) sublimation #49. According to ANSI/IIRC S500, an IEP is an A) indoor environment professional
#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 is 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 (7.8 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
#74. When placing airmovers in a building that had water intrusion, the formula begins with each room receiving this many airmovers prior to affected area and inset/offset calculations A) 1 #75. When significant Carpet Delamination is discovered the restorer should D) document, communicate with materially interested parties, and most often recommend replacement #76. When the temperature of absorbed moisture in materials is increased, more energy is increased causing the C. Evaporation to increase #77. Reducing the water vapor content of air is A) dehumidification #78. When indoor conditions are 75 F (24 C) and 55% RH and no heating system is available the most appropriate outdoor conditions for considering an open drying system would be c #79. Wallboard covered with vinyl wallpaper can require special drying procedures A #80. Secondary damage caused by high humidity is most likely affect materials that are B. hygroscopic
#81. The least amount of water absorption and evaporation load where wet porous materials rep less than ~5% of combined ceiling, walls, and flooring surface areas and where low evaporation materials and assemblies are minimally wet A) class 1 #82. A device used to measure temperature and relative humidity in air is called a C) thermo-hygrometer #83. All persons required to use respiratory protection shall B? couldnt 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
#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 A. 7 B. 5 C. 3 D. 1 C. 3 #100. After physically removing excess water, the time required to dry wet materials is influenced most by the A. Equilibrium moisture content B. Rate of evaporation C. Equilibrium relative humidity D. Fiber saturation point B. Rate of evaporation
