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40 hr Asbestos Contractor/Supervisor Course Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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40 hr Asbestos Contractor/Supervisor Course Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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40 hr Asbestos Contractor/Supervisor
Course Exam Questions and Answers
with Verified Solutions | Latest Updated
2026



ACM asbestos containing material


PACM presumed asbestos containing
material


RACM regulated asbestos containing
material


ACBM Asbestos Containing Building
Material


size of asbestos fiber 0.3-0.8 microns


PLM Polarized Light Microscopy (method
for testing PACM)


Material is considered >1
asbestos containing when it
has ______% asbestos


Friable able to be crumbled to a powder
with hand pressure


Non-Friable cannot be crumbled by hand; will
not typically release asbestos fiber

, into the air


CFR Code of Federal Regulations


EL excursion limit


PEL Permissible Exposure Limit


what is the EL for asbestos? 1.0 f/cc over 30 min


what is the PEL for asbestos? 0.1 f/cc over 8 hours


Class 1 asbestos work removal of friable material; high risk


Friable or Non-Friable? Friable
sprayed surfacing material


Friable or Non-Friable? wall Non-Friable
board


Friable or Non-Friable? TSI Friable


Friable or Non-Friable? roofing Non-Friable


Class 2 asbestos work Removal of Non-Friable ACM


Class 3 asbestos work Work that may disturb asbestos or
require removal of a small amount
of ACM


Class 4 asbestos work Maintenance work of ACM

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