Certified Site Surveillance Technician
(CSST) Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2025 Q&A | Instant Download PDF
California-specific regulations and requirements.
1. What is the minimum daily frequency for CSST air monitoring during an
asbestos abatement project?
A. Once per week
B. Once per day
C. Twice per shift
D. Every two hours
Rationale: California regulations require daily air monitoring during
abatement to ensure worker safety and regulatory compliance.
2. When must a CSST stop work on an asbestos project?
A. When ambient temperature exceeds 90°F
B. When fiber concentrations exceed permissible exposure limits
(PELs)
C. When equipment malfunctions
D. When the supervisor is on break
,Rationale: CSSTs must halt work if fiber levels exceed OSHA/Cal-OSHA
PELs to prevent health hazards.
3. Which of the following is NOT a CSST responsibility?
A. Visual inspections
B. Air sampling
C. Writing abatement contracts
D. Monitoring work practices
Rationale: Contract development is not within the CSST scope; they focus
on oversight and compliance.
4. A negative exposure assessment (NEA) is used to:
A. Justify full containment
B. Demonstrate worker exposure is below the PEL
C. Increase work crew size
D. Eliminate the need for PPE
Rationale: NEAs provide documented proof that workers are not
overexposed to asbestos, allowing for regulatory flexibility.
5. In California, the employer must retain asbestos exposure monitoring
records for:
A. 10 years
B. 30 years
,C. 5 years
D. Duration of employment
Rationale: Title 8 CCR § 5208 mandates a 30-year retention for asbestos
monitoring records to protect long-term worker health.
6. CSSTs must have completed training compliant with which EPA regulation?
A. NESHAP
B. AHERA
C. MAP (Model Accreditation Plan)
D. HAZWOPER
Rationale: The Model Accreditation Plan (MAP) sets training requirements
for asbestos professionals, including CSSTs.
7. The glove bag method is best suited for:
A. Small-scale removal on pipes
B. Large open surface areas
C. Roof tile abatement
D. Soil remediation
Rationale: Glove bags allow safe asbestos removal from small pipe sections
without full containment.
8. How often must a CSST visually inspect containment barriers during
abatement?
, A. Every 8 hours
B. Daily
C. Once per project
D. Weekly
Rationale: Daily visual inspections help detect breaches or damage early
and prevent fiber release.
9. Which of the following best defines “clearance air monitoring”?
A. Checks exposure before entering regulated area
B. Confirms no asbestos fibers remain post-abatement
C. Measures daily fiber levels
D. Measures background air before work starts
Rationale: Clearance monitoring ensures the area is safe for re-occupancy
after removal is complete.
10. An aggressive clearance method typically includes:
A. Use of HEPA vacuums only
B. Use of fans and leaf blowers to disturb settled fibers
C. Airless containment
D. Passive sampling
Rationale: Aggressive methods help ensure even hidden fibers are detected
during post-abatement clearance.
(CSST) Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2025 Q&A | Instant Download PDF
California-specific regulations and requirements.
1. What is the minimum daily frequency for CSST air monitoring during an
asbestos abatement project?
A. Once per week
B. Once per day
C. Twice per shift
D. Every two hours
Rationale: California regulations require daily air monitoring during
abatement to ensure worker safety and regulatory compliance.
2. When must a CSST stop work on an asbestos project?
A. When ambient temperature exceeds 90°F
B. When fiber concentrations exceed permissible exposure limits
(PELs)
C. When equipment malfunctions
D. When the supervisor is on break
,Rationale: CSSTs must halt work if fiber levels exceed OSHA/Cal-OSHA
PELs to prevent health hazards.
3. Which of the following is NOT a CSST responsibility?
A. Visual inspections
B. Air sampling
C. Writing abatement contracts
D. Monitoring work practices
Rationale: Contract development is not within the CSST scope; they focus
on oversight and compliance.
4. A negative exposure assessment (NEA) is used to:
A. Justify full containment
B. Demonstrate worker exposure is below the PEL
C. Increase work crew size
D. Eliminate the need for PPE
Rationale: NEAs provide documented proof that workers are not
overexposed to asbestos, allowing for regulatory flexibility.
5. In California, the employer must retain asbestos exposure monitoring
records for:
A. 10 years
B. 30 years
,C. 5 years
D. Duration of employment
Rationale: Title 8 CCR § 5208 mandates a 30-year retention for asbestos
monitoring records to protect long-term worker health.
6. CSSTs must have completed training compliant with which EPA regulation?
A. NESHAP
B. AHERA
C. MAP (Model Accreditation Plan)
D. HAZWOPER
Rationale: The Model Accreditation Plan (MAP) sets training requirements
for asbestos professionals, including CSSTs.
7. The glove bag method is best suited for:
A. Small-scale removal on pipes
B. Large open surface areas
C. Roof tile abatement
D. Soil remediation
Rationale: Glove bags allow safe asbestos removal from small pipe sections
without full containment.
8. How often must a CSST visually inspect containment barriers during
abatement?
, A. Every 8 hours
B. Daily
C. Once per project
D. Weekly
Rationale: Daily visual inspections help detect breaches or damage early
and prevent fiber release.
9. Which of the following best defines “clearance air monitoring”?
A. Checks exposure before entering regulated area
B. Confirms no asbestos fibers remain post-abatement
C. Measures daily fiber levels
D. Measures background air before work starts
Rationale: Clearance monitoring ensures the area is safe for re-occupancy
after removal is complete.
10. An aggressive clearance method typically includes:
A. Use of HEPA vacuums only
B. Use of fans and leaf blowers to disturb settled fibers
C. Airless containment
D. Passive sampling
Rationale: Aggressive methods help ensure even hidden fibers are detected
during post-abatement clearance.
