CCST EXAM /CCST EXAM PREPARATION
2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW
VERSION!!|GUARANTEED PASS
What is the permissible exposure limit?
0.1 f/cc in an 8 hr TWA
When did Asbestos come into major use?
-19th Century with the steam engine
-1870's 1st Chrysotile mine in Quebec
1890's Crocidolite in South Africa
1916 Amostite
1945 Amosite use increased in WWII Ship yards
Under AHERA who is required to notify parents, teachers, and employees of the presence of
friable asbestos in their school and the availability of the inspection report and management
plan?
LEA- Local Education Agency
What is personal air sampling?
Sampling to determine worker exposure to asbestos in the work area
How many samples should be taken for 4 linear ft of TSI?
3
What are the most common Amphiboles?
1|Page
,Amosite & Crocidolite
-Amphibole fibers are shorter & rigid
-Short, needle-like
-Do not absorb water well
-Believed to be more dangerous
-Mesothelioma
When can an abatement action be considered complete?
When volume of air drawn on for each 5 samples collected is:
≥ 1100 liters air for 25mm filter, or
≥ 2799 Liters for 37mm filter, and
avg asbestos concentration analyzed by TEM for the 5 samples does not exceed filter
background level 70 s/mm².
What does AHERA define as accessible material?
Material subject to disturbance
How much does PCM magnify fibers?
400x Magnification
Who can conduct an air clearance?
An accredited lab by the National Institute of Standard and Technology (NIST) and they must be
enrolled in the Amercian Industrial Hygiene Association PAT (Proficiency Analytical Testing)
program for PCM
What is EPA Method 600/M4-82-020
Method for title determination of asbestos bulk insulation samples
What reasons are area air samples collected for?
OSHA requires area monitoring during Class I operations if criticals are not utilized.
Purpose is to document if fiber migration has occurred from inside to outside the work area.
How many air exchanges are required per hour?
Four air exchanges/hour
Class IV work
2|Page
,Maintenance & custodial activities contact but do not disturb ACM
What is the PEL?
0.1 f/cc over 8 hr TWA not to exceed
What Information is required in personal air monitoring records?
-Date of Measurement
-Operation being monitored
-Sampling and analytical methods used
-Number, duration, and results of samples
-Types of protective devices worn
-Name and exposure of employees
What factor most limits the degree of protection provided by a respirator?
The actual fit on an individuals face.
PCM clearance level
0.01 Fibers/ CC
Who can read a chest x-ray
B- Readers (A doctor certified by NIOSH)
What kind of limitations does PCM analysis have?
-Cannot distinguish fibers between asbestos and other fibers
-Only particles 0.25 microns and greater in diameter can be detected
-Only fibers >5 microns long are counted
What is the exemption to notifying NESHAP
- < 160 Square feet, 260 linear ft, 35 cubic feet
-Emergency demo, facility cited as structurally unsound & danger of immediate collapse
What must be done for an AHERA inspection?
Visually inspect every area, touch suspect material, determine friability, sample each suspect
material or assume document, determine condition
PCM counting formula
What is point counting?
3|Page
, -Method of counting to make PLM analysis more accurate
-Touches one or more of 400 points on a microscope=count
Architectural Drawing
A drawing showing the finished surfaces, materials and construction processes that define the
structure.
Typically created as plan, elevation, section, and detail drawing.
Who documents the procedures for PLM?
EPA as method 600/ M4-82-020
How many samples should be taken for <1000 square ft?
3 samples
What are some prohibited work practices or engineering controls?
-High speed abrasive disk saws
-Compressed air
-Dry sweeping/dry cleanup
-Employee rotation with no PPE
Bulk Samples
Determine if any asbestos in material
What is protection factor?
The rate of fibers in air outside of respirator vs the fibers inside.
What is the protection factor of a full-face mask?
50 or 5 f/cc
What is a supplied air respirator?
Air from outside the containment/contaminated area is pumped into the face piece through a
hose.
What agency does not use the term friable?
OSHA
Tools workers use can easily make non-friable materials friable
What are three common insurance exclusions?
4|Page
2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW
VERSION!!|GUARANTEED PASS
What is the permissible exposure limit?
0.1 f/cc in an 8 hr TWA
When did Asbestos come into major use?
-19th Century with the steam engine
-1870's 1st Chrysotile mine in Quebec
1890's Crocidolite in South Africa
1916 Amostite
1945 Amosite use increased in WWII Ship yards
Under AHERA who is required to notify parents, teachers, and employees of the presence of
friable asbestos in their school and the availability of the inspection report and management
plan?
LEA- Local Education Agency
What is personal air sampling?
Sampling to determine worker exposure to asbestos in the work area
How many samples should be taken for 4 linear ft of TSI?
3
What are the most common Amphiboles?
1|Page
,Amosite & Crocidolite
-Amphibole fibers are shorter & rigid
-Short, needle-like
-Do not absorb water well
-Believed to be more dangerous
-Mesothelioma
When can an abatement action be considered complete?
When volume of air drawn on for each 5 samples collected is:
≥ 1100 liters air for 25mm filter, or
≥ 2799 Liters for 37mm filter, and
avg asbestos concentration analyzed by TEM for the 5 samples does not exceed filter
background level 70 s/mm².
What does AHERA define as accessible material?
Material subject to disturbance
How much does PCM magnify fibers?
400x Magnification
Who can conduct an air clearance?
An accredited lab by the National Institute of Standard and Technology (NIST) and they must be
enrolled in the Amercian Industrial Hygiene Association PAT (Proficiency Analytical Testing)
program for PCM
What is EPA Method 600/M4-82-020
Method for title determination of asbestos bulk insulation samples
What reasons are area air samples collected for?
OSHA requires area monitoring during Class I operations if criticals are not utilized.
Purpose is to document if fiber migration has occurred from inside to outside the work area.
How many air exchanges are required per hour?
Four air exchanges/hour
Class IV work
2|Page
,Maintenance & custodial activities contact but do not disturb ACM
What is the PEL?
0.1 f/cc over 8 hr TWA not to exceed
What Information is required in personal air monitoring records?
-Date of Measurement
-Operation being monitored
-Sampling and analytical methods used
-Number, duration, and results of samples
-Types of protective devices worn
-Name and exposure of employees
What factor most limits the degree of protection provided by a respirator?
The actual fit on an individuals face.
PCM clearance level
0.01 Fibers/ CC
Who can read a chest x-ray
B- Readers (A doctor certified by NIOSH)
What kind of limitations does PCM analysis have?
-Cannot distinguish fibers between asbestos and other fibers
-Only particles 0.25 microns and greater in diameter can be detected
-Only fibers >5 microns long are counted
What is the exemption to notifying NESHAP
- < 160 Square feet, 260 linear ft, 35 cubic feet
-Emergency demo, facility cited as structurally unsound & danger of immediate collapse
What must be done for an AHERA inspection?
Visually inspect every area, touch suspect material, determine friability, sample each suspect
material or assume document, determine condition
PCM counting formula
What is point counting?
3|Page
, -Method of counting to make PLM analysis more accurate
-Touches one or more of 400 points on a microscope=count
Architectural Drawing
A drawing showing the finished surfaces, materials and construction processes that define the
structure.
Typically created as plan, elevation, section, and detail drawing.
Who documents the procedures for PLM?
EPA as method 600/ M4-82-020
How many samples should be taken for <1000 square ft?
3 samples
What are some prohibited work practices or engineering controls?
-High speed abrasive disk saws
-Compressed air
-Dry sweeping/dry cleanup
-Employee rotation with no PPE
Bulk Samples
Determine if any asbestos in material
What is protection factor?
The rate of fibers in air outside of respirator vs the fibers inside.
What is the protection factor of a full-face mask?
50 or 5 f/cc
What is a supplied air respirator?
Air from outside the containment/contaminated area is pumped into the face piece through a
hose.
What agency does not use the term friable?
OSHA
Tools workers use can easily make non-friable materials friable
What are three common insurance exclusions?
4|Page
