Which is the senior microbial consulting credential offered by ACAC, accredited by CESB?
Credentialing
Question · Easy
Per ACAC's microbial consulting handbook, the CMC examination consists of how many questions?
ACAC requires CMC candidates WITHOUT any qualifying degree to have how many years of documented field experience in mold inspection/sampling?
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Sterigmatocystin, a metabolite of Aspergillus versicolor, is classified by IARC as:
Mold Biology
Question · Medium
Which mycotoxin class is most commonly produced by Stachybotrys chartarum?
Which method is BEST for chronologically integrating a building's mold burden over months?
Sampling
An indoor environmental consultant designing a sampling strategy for a litigation-support case should prioritize which principle?
Consulting Practice
Which lab accreditation specifically applies to U.S. environmental microbiology labs analyzing mold samples?
Qa Qc
When acting as IEP, what is the BEST first step after a CMC arrives at a building with reported water damage and complaints?
Investigation Protocols
ANSI/IICRC S500 Category 3 water includes which of the following?
Standards And Regulations
Per S520, a 'Condition 2' environment is BEST described as:
An air sample report shows hyphal fragments elevated indoors with low spore counts. The MOST appropriate professional interpretation is:
Data Interpretation
Which is the BEST description of 'limit of detection' (LOD)?
Question · Hard
What is the BEST justification for using both Air-O-Cell (non-viable) AND viable Andersen N6 sampling in a single investigation?
Which water-activity (aw) range is considered intermediate, supporting many Penicillium and Aspergillus species?
Which is true about HERTSMI-2 scoring?
An ACAC CMC certification is valid for what period before recertification is required?
Which is the BEST description of the 'sampling representativeness' challenge in indoor air?
Which NIOSH method is specifically a bioaerosol sampling method commonly cited in mold investigation?
When a CMC is retained to develop a remediation scope of work, the document MUST include which of the following?
ACAC's Code of Ethics regarding 'fee-for-conclusion' arrangements states that consultants should:
Ethics
Which species is best described as 'xerophilic and dust-associated'?
Vapor pressure of water at 70°F and 50% RH is approximately:
Building Science
What is the BEST general protocol when a CMC discovers asbestos-containing materials during a mold investigation in a building built before 1981?
Regulations
Which is the BEST description of 'expert witness' obligations during testimony?
Which is the BEST sampling approach to determine whether HVAC distribution is amplifying contamination?
MVOCs (microbial volatile organic compounds) are MOST useful in CMC practice as:
Which is true about the relationship between visible mold and indoor air spore counts?
Aspergillus fumigatus poses particular risk to which occupant group?
Which is BEST defended by a CMC for selecting between Air-O-Cell and dust ERMI on a chronic case?
In a litigation or insurance context, which is the MOST defensible documentation practice?
Documentation And Reporting
ANSI/IICRC S520 'Condition 3' typically requires which combination of engineering controls in a substantial occupied building?
Remediation
Per S500, Class 1 water intrusion is defined as:
Which xerophilic fungal genus is associated with sugary, low-water-activity food spoilage and is sometimes found indoors in dust-rich environments?
Which is the BEST explanation for an indoor air sample showing 0 ct/m³ of Stachybotrys despite visible Stachybotrys on a wall?
An IEP recommends air sampling AFTER occupant activity (e.g., walking, vacuuming) when investigating settled contamination. The rationale is:
Which is the BEST description of 'pre-remediation criteria' developed by the IEP per S520?
Which is the typical recommendation for HEPA negative-air machine sizing in mold containment?
What is the MOST appropriate role of CFU (colony-forming units) in mold investigation?
A CMC's report must clearly state limitations because:
Which OSHA standard governs Hazard Communication and applies to chemical hazards encountered in mold remediation (e.g., biocides, cleaning agents)?
Which is the BEST description of 'building dynamics' relevant to a CMC investigation?
An indoor environmental consultant interprets ERMI scores in the context of:
Which response is BEST when a remediation contractor disputes a CMC's PRV failure decision?
Which best describes the 'aerosolization potential' of Stachybotrys vs. Aspergillus/Penicillium?
Which is the BEST general approach to writing CMC report recommendations?
Which BEST describes how a CMC should handle a finding of insulation contaminated with mouse droppings during a mold investigation?
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