IICRC AMRT Exam Questions & Answers 2024/2025

IICRC AMRT Exam Questions & Answers 2024/2025 Typical Microbial-Remediation job sequencing: - ANSWER-1. Identifying and stopping the source of moisture 2. Setting up containment 3. Establishing negative air 4. Removing contaminated building materials 5. Clean surfaces 6. Dry affected areas 7. Conduct post-remediation evaluation Odors detected in water damaged buildings can be caused by - ANSWER-Wet structural assemblies Wet contents Microbial Volatile Organic Compounds - ANSWER-(MVOCs) Byproducts of microorganisms metabolism Mycotoxins - ANSWER-toxins produced by fungi, produced by SOME molds under certain conditions Mycotoxins know to be carcinogenic are called - ANSWER-Aflatoxin, can damage liver and may lead to liver cancer Mold spores are typically found to be - ANSWER-2.0 to 20 microns in diameter Micron - ANSWER-one millionth of a meter Sporulation - ANSWER-Fungal organisms releasing spores into environment Viable Spores - ANSWER-"alive" and can start new colonies May be allergenic and/or contain toxins Settled Spores - ANSWER-spores that have landed on a surface and not actively growing Mycotoxins are present in - ANSWER-cell walls of fungal spores and hyphae Stachybotrys requires - ANSWER-high level of water activity Stachybotrys grows best when - ANSWER-in continuous contact with moisture Stachybotrys is - ANSWER-ONE OF MANY MYCOTOXINS PRODUCING MOLDS Genus of mold that contains around 50 different species; S. chartarum and S. chloroaromatic are some of the most dangerous and referred to as black mold or toxic black mold; linked to respiratory issues; must be disclosed Stachybotrys can begin to colonize in - ANSWER-7 to 12 days Penicillium and Aspergillus - ANSWER-RESPIRABLE, spores can be drawn into lungs during normal breathing common examples of fungi found in remediation work XEROPHILIC Penicillium and Aspergillus can colonize in - ANSWER-48 to 72 hours Xerophilic - ANSWER-organisms that grow in very dry environments Cryptococcus neoformans and Histoplasma capsulatum - ANSWER-fungi associated with BIRD and BAT droppings inhalation can result in respiratory infections Escherichia coli (E. coli) - ANSWER-Bacteria usually found in sewage Gram-Negative bacteria - ANSWER-Most common found in sewage, more pathogenic to humans than gram-Positive Produce endotoxins in their cell walls which are hazardous when ingested/inhaled Virus do not reproduce, - ANSWER-they REPLICATE by invading living cells and turning them into virus factories to grow "Dry Rot" fungi, - ANSWER-at least 20% moisture content is required Water activity (Aw) - ANSWER-amount of moisture available in food for growth Equilibrium Relative Humidity (ERH) - ANSWER-Aw X 100% Control moisture and prevent mold growth by - ANSWER-keeping materials dry and if they become wet, dry them quickly Number of federal regulations established for mold remediation industry - ANSWER-0 Standard for mold remediation - ANSWER-ANSI/IICRC S520 Standard and reference guide for professional mold remediation standard for water restoration - ANSWER-S500 Condition 1 - ANSWER-Normal indoor living environment that is NOT contaminated by mold Condition 2 - ANSWER-Indoor environment contaminated with settled mold spores, but does NOT have ACTIVE mold growth Condition 3 - ANSWER-Indoor environment that is contaminated with visible or active mold growth Should - ANSWER-Practice/procedure is the accepted standard of care, and SHOULD be followed, but is not mandatory by law Shall - ANSWER-Practice/procedure is mandatory due to law or regulations Recommended - ANSWER-Practice/procedure is advised or suggested, but is not mandatory Limitations - ANSWER-Restrictions placed upon the mediator that result in a limit on the scope, or on remediation activities Complexities - ANSWER-Situations that cause the job to become more difficult or detailed, but that the work can still be performed accurately Complications - ANSWER-Situations arise after the start of the work that cause the job to become more intricate, complex or perplexing and will generally necessitate a change in scope of activities Which categories of water can result in bacterial/fungal growth - ANSWER-ALL 1,2,3 Any water that enters the home from beyond the sewer trap, regardless Continues...