IICRC WRT Exam 2024 Questions and Answers

IICRC WRT Exam 2024 Moisture levels of ______% will support destructive wood (rot) decaying fungi to grow on wood surfaces. - Answer ️️ -20% relative humidity - Answer ️️ -Is the ratio of the moisture suspended in air expressed as a percentage of total moisture holding capaciry of that air at a given temperature. ACM - Answer ️️ -Asbestos Containing Material Daily Humidity Record - Answer ️️ -Occurring at least every 12-24 hours the recording the relative humidity and temperature to determine Grains Per Pound (GPP). Areas not directly wet will experience humidity elevation. Therefore... - Answer ️️ - Technicians must isolate affected areas from non affected areas to gain best control of humidity. Vapor Pressure will always - Answer ️️ -...seek a level of equilibrium within a confined space. How many grains are in a pound of air? - Answer ️️ -7000 Humidity ratio/specific humidity - Answer ️️ -The amount of water in the air (by weight) contained in the parcel of air. What is the goal for day 2 drying? - Answer ️️ -To get the humidity under 70 to ensure mitigation. Dew point is also known as ___. - Answer ️️ -saturation temperature or condensation The Dew Point - Answer ️️ -the temperature at which the air becomes saturated with water vapor (100%RH) and condenses on the cooler surfaces. Where does condensation moisture cause mold? - Answer ️️ -Mold growth can occur in cold spots of homes and buildings where warm indoor air encounters cold outside air or vice versa. Fog - Answer ️️ -When the air meets the dew point temperature. Dew - Answer ️️ -The temperature at which condensation overwhelms evaporation. Why might condensation be bad? - Answer ️️ -Condensation with a bio film (an organic film like soap or glue) present allows mold to grow in a variety of surfaces from plastic to glass. Biofilm - Answer ️️ -Any organic substrate and bacteria that tends to encourage mold growth. Why are Thermal Cameras Important? - Answer ️️ -Thermal cameras, along with other sensors can detect the moisture perimeter of wet carpet and cushion