ACTUAL Exam Questions and CORRECT
Answers
Three types/forms of asbestos - CORRECT ANSWER Chrysotile (white): Most Common,
Amosite (brown): Most Dangerous,
Crocidolite (blue) : Rare
What is the name and color of the most commonly found type that is present in asbestos
materials - CORRECT ANSWER Chrysotile (white)
What color is amosite and why is it more dangerous than the other forms of asbestos -
CORRECT ANSWER Brown; it's needle like structure and that the fact it is very hard to wet,
making it the most dangerous type/form
What are the properties of asbestos - CORRECT ANSWER 1. Has a high tensile strength (10
X greater than steel)
2. Won't conduct electricity
3. It has good insulation capabilities
4. Has acoustical/ soundproofing capabilities 5. Is resistant to heat, chemicals, friction and wear
6. Won't burn
What is the definition of friable - CORRECT ANSWER Able to crumble or crush by hand
pressure or easily mechanically into a dust/powder when dry
Is Floor Tile friable or non-friable under normal conditions - CORRECT ANSWER No (not
friable)
Is TSI (Thermal System Insulation) friable or non-friable under normal conditions - CORRECT
ANSWER Yes (is friable)
, Is Plaster friable or non-friable under normal conditions - CORRECT ANSWER no (not
friable)
How can one determine if a building material contains asbestos - CORRECT ANSWER A
bulk sample must be collected and submitted to a lab for analysis by polarized light microscopy
(PLM) analysis. A material that is equal to or greater than 1% asbestos by weight is positive for
asbestos
What is the name of the lab test used for bulk sample analysis - CORRECT
ANSWER Polarized Light Microscopy (PLM) this method tells the % (amount) asbestos
content and the type/form present in the sample
What is the names of the lab tests used for air sample - CORRECT ANSWER Phase Contrast
Microscopy (PCM) and Transmission Electron Microscopy (TEM)
According to the regulations, who is authorized to perform the lab tests indicated in H & I -
CORRECT ANSWER An accredited lab
According to EPA and OSHA, asbestos containing materials contains how much asbestos by
weight - CORRECT ANSWER Greater than 1% asbestos by weight
Currently how many products/ building materials contain asbestos - CORRECT
ANSWER 3,000-4,000 products
When/ which year was spray-applied and TSI application/installation of asbestos banned -
CORRECT ANSWER 1978
According to the OSHA Construction Standard for Asbestos, how many asbestos activities are
there and what are the training requirements for workers for each activity - CORRECT
ANSWER 1. Class 1- Activities that involve the removal of TSI and surfacing materials; 32
hours