ACSA NCSO Exam Questions and
Verified Answers | Complete and
Accurate | 2025/2026 Edition
Section 1: Health and Safety Management Systems
Question 1: (CSA) What type of system is a complete system that maintains high
standards throughout every part of a company's organization?
A) Quality Management System (QMS)
B) Health and Safety Management System (HSMS)
C) Environmental Management System (EMS)
D) Operational Control System (OCS)
Correct Answer: B) Health and Safety Management System (HSMS)
,Rationale: An HSMS is a comprehensive system that integrates health and safety
standards into all parts of a company's organization, from management to field
operations. It provides the framework for maintaining consistent safety standards across
the entire organization.
Question 2: (CSA) What are the three factors of Due Diligence?
A) Awareness, Action, Accountability
B) Foreseeability, Preventability, Control
C) Assessment, Planning, Implementation
D) Supervision, Training, Monitoring
Correct Answer: B) Foreseeability, Preventability, Control
Rationale: The three factors of due diligence are foreseeability (could the hazard be
anticipated?), preventability (could the incident have been prevented?), and control (did
the employer have control over the situation?). These factors are used to determine if an
employer took reasonable steps to prevent harm.
Question 3: (CSA) What type of losses are cost associated with loss-type incidents?
A) Direct Losses
B) Indirect Losses
C) Absolute Losses
D) Variable Losses
Correct Answer: C) Absolute Losses
,Rationale: Absolute losses are costs directly associated with loss-type incidents,
including medical expenses, workers' compensation claims, and property damage. These
are quantifiable and directly attributable to the incident.
Question 4: (CSA) What formula gives you the LTFR - Lost Time Frequency Rate?
A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
B) (Total incidents × 1,000,000) / Total Employee Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Lost time cases × 100,000) / Total Employee Hours of Exposure
Correct Answer: A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
Rationale: The Lost Time Frequency Rate (LTFR) calculates the number of lost time
cases per 200,000 hours worked (equivalent to 100 full-time employees working one
year). This standardized formula allows for comparison across companies and industries.
Question 5: (CSA) What formula gives you the IRS - Injury Severity Rate?
A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
B) (Total incidents × 200,000) / Total Employee Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Lost work days × 100,000) / Total Employee Hours of Exposure
Correct Answer: C) (Lost work days × 200,000) / Total Employee Hours of Exposure
, Rationale: The Injury Severity Rate (IRS) measures the severity of incidents by
calculating lost work days per 200,000 hours worked. This helps organizations
understand the impact of injuries beyond just the frequency of occurrences.
Question 6: (CSA) What formula gives you the TRIF - Total Recordable Incident
Frequency?
A) (Total incidents × 200,000) / Total Employee Hours of Exposure
B) (Lost time cases + medical aids + modified work cases) × 200,000 / Total Employee
Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Total incidents × 100,000) / Total Employee Hours of Exposure
Correct Answer: B) (Lost time cases + medical aids + modified work cases) × 200,000 /
Total Employee Hours of Exposure
Rationale: The Total Recordable Incident Frequency (TRIF) includes all recordable
incidents—lost time cases, medical aid cases, and modified work cases—providing a
comprehensive measure of workplace injuries and illnesses.
Question 7: (CSA) On a project, whose responsibility is it to develop a collaborative
environmental management program?
A) Subcontractors
B) Prime Contractor
C) Individual Workers
D) Safety Committee
Verified Answers | Complete and
Accurate | 2025/2026 Edition
Section 1: Health and Safety Management Systems
Question 1: (CSA) What type of system is a complete system that maintains high
standards throughout every part of a company's organization?
A) Quality Management System (QMS)
B) Health and Safety Management System (HSMS)
C) Environmental Management System (EMS)
D) Operational Control System (OCS)
Correct Answer: B) Health and Safety Management System (HSMS)
,Rationale: An HSMS is a comprehensive system that integrates health and safety
standards into all parts of a company's organization, from management to field
operations. It provides the framework for maintaining consistent safety standards across
the entire organization.
Question 2: (CSA) What are the three factors of Due Diligence?
A) Awareness, Action, Accountability
B) Foreseeability, Preventability, Control
C) Assessment, Planning, Implementation
D) Supervision, Training, Monitoring
Correct Answer: B) Foreseeability, Preventability, Control
Rationale: The three factors of due diligence are foreseeability (could the hazard be
anticipated?), preventability (could the incident have been prevented?), and control (did
the employer have control over the situation?). These factors are used to determine if an
employer took reasonable steps to prevent harm.
Question 3: (CSA) What type of losses are cost associated with loss-type incidents?
A) Direct Losses
B) Indirect Losses
C) Absolute Losses
D) Variable Losses
Correct Answer: C) Absolute Losses
,Rationale: Absolute losses are costs directly associated with loss-type incidents,
including medical expenses, workers' compensation claims, and property damage. These
are quantifiable and directly attributable to the incident.
Question 4: (CSA) What formula gives you the LTFR - Lost Time Frequency Rate?
A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
B) (Total incidents × 1,000,000) / Total Employee Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Lost time cases × 100,000) / Total Employee Hours of Exposure
Correct Answer: A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
Rationale: The Lost Time Frequency Rate (LTFR) calculates the number of lost time
cases per 200,000 hours worked (equivalent to 100 full-time employees working one
year). This standardized formula allows for comparison across companies and industries.
Question 5: (CSA) What formula gives you the IRS - Injury Severity Rate?
A) (Lost time cases × 200,000) / Total Employee Hours of Exposure
B) (Total incidents × 200,000) / Total Employee Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Lost work days × 100,000) / Total Employee Hours of Exposure
Correct Answer: C) (Lost work days × 200,000) / Total Employee Hours of Exposure
, Rationale: The Injury Severity Rate (IRS) measures the severity of incidents by
calculating lost work days per 200,000 hours worked. This helps organizations
understand the impact of injuries beyond just the frequency of occurrences.
Question 6: (CSA) What formula gives you the TRIF - Total Recordable Incident
Frequency?
A) (Total incidents × 200,000) / Total Employee Hours of Exposure
B) (Lost time cases + medical aids + modified work cases) × 200,000 / Total Employee
Hours of Exposure
C) (Lost work days × 200,000) / Total Employee Hours of Exposure
D) (Total incidents × 100,000) / Total Employee Hours of Exposure
Correct Answer: B) (Lost time cases + medical aids + modified work cases) × 200,000 /
Total Employee Hours of Exposure
Rationale: The Total Recordable Incident Frequency (TRIF) includes all recordable
incidents—lost time cases, medical aid cases, and modified work cases—providing a
comprehensive measure of workplace injuries and illnesses.
Question 7: (CSA) On a project, whose responsibility is it to develop a collaborative
environmental management program?
A) Subcontractors
B) Prime Contractor
C) Individual Workers
D) Safety Committee
