CSST PRACTICE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS 2025 UPDATE
1. Which regulation requires viewing ports in containment, a master shut off
switch at the entry door for all negative air units, and fire-retardant poly?
A. SCAQMD Rule 1403
B. EPA / AHERA
C. Cal-OSHA Title 8, 1529
D. None of the above - CORRECT ANSWER D. None of the above
2. Which regulation has several appendix sections, one of which consists of non-
mandatory work practices?
A. Cal-OSHA Title 8, 1529
B. EPA ASHARA
C. EPA NESHAP
D. EPA AHERA - CORRECT ANSWER A. Cal-OSHA Title 8, 1529
3. From which regulation does the term 'PACM' come from?
A. EPA AHERA
B. EPA NESHAP
C. Cal OSHA, Title 8, CCR 1529
D. Cal OSHA, Title 8, CCR 5144 - CORRECT ANSWER B. EPA NESHAP
4. From which agency did the term asbestos containing construction material
(ACCM) come from?
A. EPA NESHAP
B. EPA AHERA
C. Fed OSHA CFR 1926, 1101
D. Cal-OSHA Title 8, 1529 - CORRECT ANSWER D. Cal-OSHA Title 8, 1529
5. From which regulation does the term RACM (Regulated Asbestos Containing
Material) come from?
A. 29CFR,1926.1101
B. AHERA
C. NESHAP
D. Cal-OSHA Title 8, 1529 - CORRECT ANSWER C. NESHAP
6. What is the Cal OSHA definition of asbestos containing construction material?
A. >.01 % by WT
B. 1% or more by WT
C. > .1% by WT
D. Less than 1% by WT - CORRECT ANSWER C. > .1% by WT
7. What is the DTSC (Dept. of Toxic Substances Control) definition of asbestos
waste in California?
A. >.1 % by weight
,CSST PRACTICE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS 2025 UPDATE
B. 1 % or more by weight
C. > 1 % by weight
D. None of the above - CORRECT ANSWER B. 1 % or more by weight
8. When can an AHERA trained supervisor/competent person, employed by a
state licensed asbestos removal contractor, collect up to 12 bulk samples,
according to State of California regulations?
A. At any time on an asbestos removal project
B. On a residential project after they have taken a building inspector course
C. Only a State of California CAC or CSST may collect samples
D. On a project less than 260 sq. ft. or 160 ln. ft. - CORRECT ANSWER B. On a
residential project after they have taken a building inspector course
17. SCAQMD Rule 1403 requires an asbestos survey prior to demolition in which
type of structures?
A. All commercial building
B. Buildings with four units or more
C. All facilities
D. Only those with ACBM suspected - CORRECT ANSWER C. All facilities
18. Which regulation created the course known as Supervisor?
A. EPA NESHAP
B. Cal-OSHA Title 8, 1529
C. EPA AHERA
D. Fed OSHA CFR 29, 1926. 1101 - CORRECT ANSWER C. EPA AHERA
19. Cal-OSHA states, for Class II roof removal:
A. A shower must be on the roof
B. Showers are not required
C. A shower must be available and nearby
D. Roofing removal is a Class I activity - CORRECT ANSWER B. Showers are not
required
20. An initial exposure assessment:
A. Is optional for some Class III work
B. Is optional if all workers wear full face, negative pressure respirators
C. Is optional for some class two work
D. None of the above - CORRECT ANSWER D. None of the above
21. Who must wear a personal air monitoring pump in containment?
A. The supervisor
B. At least 33 % of the workforce
C. At least one worker performing differing tasks
, CSST PRACTICE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS 2025 UPDATE
D. All of the above - CORRECT ANSWER C. At least one worker performing
differing tasks
22. Which of these is considered a Category II non friable material?
A. Asbestos cement pipe
B. Vinyl floor tile
C. Drywall joint compound
D. Asphalt roofing - CORRECT ANSWER C. Drywall joint compound
23. Smoke testing of a containment area shall be performed:
A. To check air flow patterns
B. Every shift
C. To check for leaks
D. All of the above - CORRECT ANSWER D. All of the above
33. Define SCAQMD Procedure 5:
A. Dry removal
B. Required if there has been an asbestos fiber release
C. A written procedure for unique asbestos work
D. Both B &C - CORRECT ANSWER D. Both B & C
24. If a major earthquake occurs during an asbestos removal job:
A. Meet in the clean room
B. Evacuate any way possible and report to corporate office
C. Evacuate and meet at a previously designated area
D. Wet the ACBM and drop to the floor - CORRECT ANSWER C. Evacuate and
meet at a previously designated area
34. Class III asbestos work:
A. Requires DOSH registration
B. Cannot exceed 100 sq ft
C. Does not require a regulated area
D. None of the above - CORRECT ANSWER D. None of the above
35. Which of these is a 'Critical Barrier'?
A. Two layers of plastic on HVAC vents
B. Air locks/flaps on decon doorways
C. A drop cloth on the floor area
D. All of these are 'critical barriers' - CORRECT ANSWER A. Two layers of plastic on
HVAC vents
36. Stucco with an asbestos content of > .1 % but less than 1% is:
A. Class one waste (hazardous / friable)
B. Class two waste (non hazardous)
COMPLETE SOLUTIONS 2025 UPDATE
1. Which regulation requires viewing ports in containment, a master shut off
switch at the entry door for all negative air units, and fire-retardant poly?
A. SCAQMD Rule 1403
B. EPA / AHERA
C. Cal-OSHA Title 8, 1529
D. None of the above - CORRECT ANSWER D. None of the above
2. Which regulation has several appendix sections, one of which consists of non-
mandatory work practices?
A. Cal-OSHA Title 8, 1529
B. EPA ASHARA
C. EPA NESHAP
D. EPA AHERA - CORRECT ANSWER A. Cal-OSHA Title 8, 1529
3. From which regulation does the term 'PACM' come from?
A. EPA AHERA
B. EPA NESHAP
C. Cal OSHA, Title 8, CCR 1529
D. Cal OSHA, Title 8, CCR 5144 - CORRECT ANSWER B. EPA NESHAP
4. From which agency did the term asbestos containing construction material
(ACCM) come from?
A. EPA NESHAP
B. EPA AHERA
C. Fed OSHA CFR 1926, 1101
D. Cal-OSHA Title 8, 1529 - CORRECT ANSWER D. Cal-OSHA Title 8, 1529
5. From which regulation does the term RACM (Regulated Asbestos Containing
Material) come from?
A. 29CFR,1926.1101
B. AHERA
C. NESHAP
D. Cal-OSHA Title 8, 1529 - CORRECT ANSWER C. NESHAP
6. What is the Cal OSHA definition of asbestos containing construction material?
A. >.01 % by WT
B. 1% or more by WT
C. > .1% by WT
D. Less than 1% by WT - CORRECT ANSWER C. > .1% by WT
7. What is the DTSC (Dept. of Toxic Substances Control) definition of asbestos
waste in California?
A. >.1 % by weight
,CSST PRACTICE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS 2025 UPDATE
B. 1 % or more by weight
C. > 1 % by weight
D. None of the above - CORRECT ANSWER B. 1 % or more by weight
8. When can an AHERA trained supervisor/competent person, employed by a
state licensed asbestos removal contractor, collect up to 12 bulk samples,
according to State of California regulations?
A. At any time on an asbestos removal project
B. On a residential project after they have taken a building inspector course
C. Only a State of California CAC or CSST may collect samples
D. On a project less than 260 sq. ft. or 160 ln. ft. - CORRECT ANSWER B. On a
residential project after they have taken a building inspector course
17. SCAQMD Rule 1403 requires an asbestos survey prior to demolition in which
type of structures?
A. All commercial building
B. Buildings with four units or more
C. All facilities
D. Only those with ACBM suspected - CORRECT ANSWER C. All facilities
18. Which regulation created the course known as Supervisor?
A. EPA NESHAP
B. Cal-OSHA Title 8, 1529
C. EPA AHERA
D. Fed OSHA CFR 29, 1926. 1101 - CORRECT ANSWER C. EPA AHERA
19. Cal-OSHA states, for Class II roof removal:
A. A shower must be on the roof
B. Showers are not required
C. A shower must be available and nearby
D. Roofing removal is a Class I activity - CORRECT ANSWER B. Showers are not
required
20. An initial exposure assessment:
A. Is optional for some Class III work
B. Is optional if all workers wear full face, negative pressure respirators
C. Is optional for some class two work
D. None of the above - CORRECT ANSWER D. None of the above
21. Who must wear a personal air monitoring pump in containment?
A. The supervisor
B. At least 33 % of the workforce
C. At least one worker performing differing tasks
, CSST PRACTICE EXAM QUESTIONS WITH
COMPLETE SOLUTIONS 2025 UPDATE
D. All of the above - CORRECT ANSWER C. At least one worker performing
differing tasks
22. Which of these is considered a Category II non friable material?
A. Asbestos cement pipe
B. Vinyl floor tile
C. Drywall joint compound
D. Asphalt roofing - CORRECT ANSWER C. Drywall joint compound
23. Smoke testing of a containment area shall be performed:
A. To check air flow patterns
B. Every shift
C. To check for leaks
D. All of the above - CORRECT ANSWER D. All of the above
33. Define SCAQMD Procedure 5:
A. Dry removal
B. Required if there has been an asbestos fiber release
C. A written procedure for unique asbestos work
D. Both B &C - CORRECT ANSWER D. Both B & C
24. If a major earthquake occurs during an asbestos removal job:
A. Meet in the clean room
B. Evacuate any way possible and report to corporate office
C. Evacuate and meet at a previously designated area
D. Wet the ACBM and drop to the floor - CORRECT ANSWER C. Evacuate and
meet at a previously designated area
34. Class III asbestos work:
A. Requires DOSH registration
B. Cannot exceed 100 sq ft
C. Does not require a regulated area
D. None of the above - CORRECT ANSWER D. None of the above
35. Which of these is a 'Critical Barrier'?
A. Two layers of plastic on HVAC vents
B. Air locks/flaps on decon doorways
C. A drop cloth on the floor area
D. All of these are 'critical barriers' - CORRECT ANSWER A. Two layers of plastic on
HVAC vents
36. Stucco with an asbestos content of > .1 % but less than 1% is:
A. Class one waste (hazardous / friable)
B. Class two waste (non hazardous)
