IICRC: IICRC AMRT Exam: Questions & Answers: Latest Updated: Guaranteed A+ Guide

What happens to the spore counts during demolition? (Ans- Goes up and creates condition 2 What is the best slip factor for poly? (Ans- Medium slip What do we do with HVAC system and vents? (Ans- Cover it up What is the best slip factor for poly? (Ans- recommended minimum pressure differential of -0.02 inch of water gauge (w.g.) OR -5 Pascal (Pa) Work areas are _____ pressurized in relationship to surrounding unaffected areas. (Ans- negative Clean areas should be ________ pressurized in relationship to the affected areas. (Ans- Positive During a microbial remediation, air flow should always be from a _____ area to a _____ area. (Ans- Clean to dirty What determines the number of decon chambers in a microbial remediation project? (Ans- The size and kind of the job Managed air flow has which benefits? (Ans- Prevents cross contamination // reduces work exposures // protect unaffected area // help HVAC system // protects occupants What does AFD stand for? (Ans- Air Filtration Device AFDs are rated by what parameter? (Ans- Cubic Feet per Minute What does ACH stand for? (Ans- Air changes per hour Calculate what AFD size is needed to create 4 air exchanges in a room 18 x 30 x 8 foot. (Ans- 288 CFM How many AFD's (rated at 1800CFM) are needed to create 6ACH in a 150 x 60 x 11 foot structure? (Ans- 5.5 ≈ 6 (round up for CFM) A scrubber rated at 1000CFM is placed in a 20 x 10 x 8 foot room. How many ACH's are created? (Ans- 37.5 ≈ 37 (round down for ACH) What should be done to prevent spore release from AFD's when shutting them down, transporting and storing them? (Ans- Seal intake with poly and tape Why use spray adhesion (glue) cautiously? (Ans- Glue is toxic and flammable What do we need to consider when setting up negative pressure containments with plastic sheeting? (Ans- Create a moisture barrier // has to be big enough to work in but small enough to clean // has to be strong enough // must drive make up through the filter // design where entry & exit are in a practical and safe way // use signage // How do you treat moldy wood framing? (Ans- Abrasive methods (media lifting, blasting, sanding) How do we change primary and secondary AFD air filters inside the containment? (Ans- The machine stays running What reduces an AFD's CFM rate? (Ans- Ducting What can too much pressure do to your containment? (Ans- Collapses Where do you place warning signs? (Ans- In conspicuous area What is important about the make-up air of the managed air flow? (Ans- We have to know where the make-up air comes from What type of containment is used for small areas of microbial contamination? (Ans- Source Describe a full scale containment. (Ans- The utilization of the entire room or building // combination of critical barriers and negative pressure Where can NAMs be placed, inside or outside the containment? (Ans- both What do you do when discovering the NAM is turned off? (Ans- Call supervisor, make sure it goes in job file, and then re-establish negative air (tip - ask your customer why they turned it off) What are Bioaerosols? (Ans- airborne particles that are living or originate from living organisms What does viable mean? (Ans- capable of germination