QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025 Q&A |
INSTANT DOWNLOAD PDF
1. What is asbestos?
A naturally occurring fibrous mineral used in construction for its
heat resistance and durability.
Asbestos is a naturally occurring mineral that was widely used in building
materials due to its fire-resistant and insulating properties.
2. Which of the following asbestos types is considered the most hazardous?
Amphibole asbestos (e.g., crocidolite).
Amphibole asbestos fibers are more rigid and needle-like, making them more
likely to cause lung damage and cancer.
3. How are people most commonly exposed to asbestos?
By inhaling airborne asbestos fibers.
Asbestos fibers become airborne when materials are disturbed and are inhaled
into the lungs, which is the primary exposure route.
4. What diseases can result from asbestos exposure?
Asbestosis, lung cancer, and mesothelioma.
These diseases are linked to asbestos inhalation, often developing many years
after exposure.
5. What is the most effective way to prevent asbestos exposure?
Avoid disturbing asbestos-containing materials (ACMs).
, Minimizing disturbance prevents asbestos fibers from becoming airborne and
inhaled.
6. What type of work requires asbestos training beyond awareness?
Work that involves handling or disturbing ACMs.
Workers who may disturb ACMs must receive specialized training on safe
handling and removal.
7. What does the term “friable asbestos” mean?
Asbestos material that can be easily crumbled by hand.
Friable asbestos is more likely to release fibers into the air when disturbed.
8. Which federal agency regulates asbestos in the workplace?
Occupational Safety and Health Administration (OSHA).
OSHA sets standards to protect workers from asbestos exposure.
9. What is the permissible exposure limit (PEL) for asbestos set by OSHA?
0.1 fibers per cubic centimeter of air (f/cc) averaged over 8 hours.
This is the maximum allowable concentration to which workers can be exposed.
10. What personal protective equipment (PPE) is required when working with
asbestos?
Respirators and protective clothing.
PPE prevents inhalation of fibers and contamination of clothes.
11. Which asbestos removal method creates the least amount of airborne
fibers?
Wet methods (using water to suppress dust).
Wet methods help keep fibers from becoming airborne.
,12. How long can asbestos fibers remain airborne?
Hours to days, depending on air movement.
Fibers can remain suspended for long periods, increasing exposure risk.
13. Which building materials are most likely to contain asbestos?
Insulation, roofing shingles, floor tiles, and pipe cement.
These are common asbestos-containing materials in older buildings.
14. What is an asbestos survey?
An inspection to identify the presence and condition of ACMs.
Surveys are conducted before renovations or demolitions.
15. What should you do if you suspect asbestos in a material?
Do not disturb it and report it to the proper authority.
Disturbing suspected ACM can release dangerous fibers.
16. Which of the following is NOT an asbestos-related disease?
a) Mesothelioma
b) Silicosis
c) Asbestosis
d) Lung cancer
b) Silicosis
Silicosis is caused by inhaling silica dust, not asbestos.
17. What is the recommended action if ACM is in good condition and not
disturbed?
Leave it in place and monitor regularly.
Undisturbed ACM generally does not pose a risk.
, 18. What is the main purpose of an asbestos management plan?
To control asbestos hazards and prevent exposure.
It outlines procedures to handle ACM safely.
19. What does HEPA stand for in HEPA filters?
High-Efficiency Particulate Air.
HEPA filters trap very small asbestos fibers in air filtration systems.
20. Which group of workers is most at risk for asbestos exposure?
Construction and demolition workers.
They frequently work with or near ACMs.
21. How often must workers receive asbestos awareness training?
At least once per year or as required by regulations.
Annual training helps reinforce safe work practices.
22. What is the primary route of asbestos fiber entry into the human body?
Respiratory system (lungs).
Inhalation is the main exposure route leading to disease.
23. What should be done before any demolition or renovation of a building?
Conduct an asbestos survey and remove identified ACMs.
Removing asbestos beforehand prevents fiber release during work.
24. What is the latency period for asbestos-related diseases?
10 to 40 years or more.
Diseases often develop long after initial exposure.
25. Why is asbestos difficult to detect without testing?
It is microscopic and mixed with other materials.
Visual inspection alone cannot reliably identify ACMs.