CORRECT ANSWERS | GRADED AND THE
LATEST SERIES
DOSH registration is required when...
Ans: disturbing ACCM (>0.1%) that exceeds 100 sq. ft.
Question: ACM
Ans: Asbestos-containing material, defined as any material containing more
than 1% asbestos. Used by EPA and FedOSHA
Question: PACM
Ans: Presumed Asbestos Containing Material (TSI or surfacing from before
1980) by OSHA
Question: PEL
Ans: Permissible Exposure Limit (0.1 f/cc 8hr TWA)
Question: Excursion Limit
Ans: 1 f/cc per 30 min
Question: Asbestos removal started in the...
Ans: 1980s
Question: Asbestos mineralogical groups, and types
,Ans: 1. Serpentine (layered, curly)
-Chrysotile (white, long wavey, hollow, 95% of used asbestos)
2. Amphibole
-Amosite (brown, short, straight, brittle)
-Crocidolite (blue, long straight brittle, most lethal)
-Anthophylite
-Tremolite
-Actinolite
Question: Latency Period
Ans: time between exposure and symptoms/signs of illness
Question: 3 major asbestos related diseases
Ans: 1. Asbestosis (pulmonary fibrosis, 15-20 yr latency, scarring of lung
tissue)
2. Lung cancer (bronchogenic carcinoma, 20-40 yr latency)
3. Mesothelioma (20-50 yr latency, cancer of membrane lining outside of lungs)
Question: 3 Categories of ACM defined by AHERA
Ans: 1. Surfacing Material: sprayed or troweled on or otherwise applied to
structural surfaces. ex: acoustic/decorative popcorn ceiling, fire proofing
2. Thermal Systems Insulation: applied to prevent heat loss or gain. ex: pipe
insulation, elbow mud, block insulation, aircell, paper wrap, boiler insulation, etc.
3. Miscellaneous: Not TSI/surfacing. ex: floor tile, ceiling tile, paint, asbestos
cement.
, Question: Define HEPA
Ans: High Efficiency Particulate Air (Filter).
Capable of trapping 99.97% of monodispersed particles 0.3 microns in diameter
or larger
Question: 4 Basic classifications of work by OSHA CFR 1926.1101
Ans: CLASS I : removal of TSI/surfacing
CLASS II: removal of NOT TSI/surfacing (Miscellaneous)
CLASS III: removal of small amount of ACM as part of operations and
maintenance (must have alibi, 60"x60" glove bag)
CLASS IV: custodial work around nonfriable materials, designed for contact but not
disturbance of asbestos
Question: Asbestos General Standard
Ans: 29 CFR 1910.1001
Question: Asbestos Construction Standard
Ans: 29 CFR 1926.1101
Question: 5 EPA Accredited courses and durations