ACSA NCSO EXAM AND PRACTICE EXAM
NEWEST 2026/ 2027 TEST BANK| ACSA
(NATIONAL CONSTRUCTION SAFETY
OFFICER) CERTIFICATION EXAM PREP
EXAM QUESTIONS AND CORRECT
VERIFIED ANSWERS/ ALREADY GRADED
A+
Question 1: A site supervisor discovers that several worker
training records are incomplete. Which action best demonstrates
due diligence regarding regulatory compliance?
a) Assume workers are trained because they have experience
b) Immediately reconstruct and verify records using available
evidence and documented confirmation
c) Wait until an inspector requests the records
d) Delete incomplete records and create new ones
Correct Answer: b) Immediately reconstruct and verify records
using available evidence and documented confirmation
Rationale: Due diligence requires employers to maintain accurate
and verifiable training records. Reconstructing records using
documented evidence, sign-in sheets, certificates, and worker
confirmation demonstrates a proactive effort to meet regulatory
obligations and verify competency .
,Question 2: What type of system is a complete system that
maintains high standards throughout every part of a company's
organization?
a) Certificate of Recognition (COR)
b) Health and Safety Management System (HSMS)
c) Safety Data Sheet (SDS)
d) Incident Investigation System
Correct Answer: b) Health and Safety Management System
(HSMS)
Rationale: An HSMS is a comprehensive, systematic approach to
managing safety that integrates health and safety into every part
of an organization's operations .
Question 3: What are the three factors of Due Diligence?
a) Training, Supervision, and Equipment
b) Foreseeability, Preventability, and Control
c) Identification, Assessment, and Control
d) Planning, Organization, and Leadership
Correct Answer: b) Foreseeability, Preventability, and Control
Rationale: The three factors of due diligence are foreseeability
(could the incident have been anticipated?), preventability (could
it have been prevented?), and control (did the employer have
control over the circumstances?) .
Question 4: What is the correct order of the hierarchy of controls,
from most to least effective?
,a) Substitution, Elimination, Administrative, Engineering, PPE
b) PPE, Administrative, Engineering, Substitution, Elimination
c) Elimination, Substitution, Engineering, Administrative, PPE
d) Engineering, PPE, Elimination, Substitution, Administrative
Correct Answer: c) Elimination, Substitution, Engineering,
Administrative, PPE
Rationale: The hierarchy of controls prioritizes the most effective
measures first: Elimination (physically remove the hazard) is most
effective, followed by Substitution, Engineering Controls,
Administrative Controls, and finally Personal Protective Equipment
(PPE), which is the least effective .
Question 5: What is the primary role of an NCSO on a
construction site?
a) To supervise all trades
b) To champion and administer the health and safety
management system
c) To approve project budgets
d) To provide first aid only
Correct Answer: b) To champion and administer the health and
safety management system
Rationale: An NCSO is a safety leader, coach, and administrator
of the health, safety, and environment (HSE) management system.
They facilitate, audit, and advise, rather than acting as a trade
supervisor or budget approver .
Question 6: What are the two basic types of hazard assessment
processes?
, a) Formal and Site-specific
b) Internal and External
c) General and Task-specific
d) Proactive and Reactive
Correct Answer: a) Formal and Site-specific
Rationale: The two basic types are Formal Hazard Assessments
(comprehensive, systematic reviews of an entire job or process)
and Site-specific Hazard Assessments (focused on the unique
hazards of a particular worksite at a specific time) .
Question 7: According to Alberta OHS legislation, what is the
definition of "reasonably practicable"?
a) Only what is written in the code
b) What workers think is reasonable
c) The cheapest option available
d) Balancing likelihood and severity of hazard with cost and effort
to control
Correct Answer: d) Balancing likelihood and severity of hazard
with cost and effort to control
Rationale: The concept of "reasonably practicable" is central to
OHS law. It requires a balancing act, weighing the probability and
degree of harm against the time, trouble, and cost of taking
measures to avoid the risk
Question 8: What is the permissible exposure limit (PEL) concept
for WHMIS?
NEWEST 2026/ 2027 TEST BANK| ACSA
(NATIONAL CONSTRUCTION SAFETY
OFFICER) CERTIFICATION EXAM PREP
EXAM QUESTIONS AND CORRECT
VERIFIED ANSWERS/ ALREADY GRADED
A+
Question 1: A site supervisor discovers that several worker
training records are incomplete. Which action best demonstrates
due diligence regarding regulatory compliance?
a) Assume workers are trained because they have experience
b) Immediately reconstruct and verify records using available
evidence and documented confirmation
c) Wait until an inspector requests the records
d) Delete incomplete records and create new ones
Correct Answer: b) Immediately reconstruct and verify records
using available evidence and documented confirmation
Rationale: Due diligence requires employers to maintain accurate
and verifiable training records. Reconstructing records using
documented evidence, sign-in sheets, certificates, and worker
confirmation demonstrates a proactive effort to meet regulatory
obligations and verify competency .
,Question 2: What type of system is a complete system that
maintains high standards throughout every part of a company's
organization?
a) Certificate of Recognition (COR)
b) Health and Safety Management System (HSMS)
c) Safety Data Sheet (SDS)
d) Incident Investigation System
Correct Answer: b) Health and Safety Management System
(HSMS)
Rationale: An HSMS is a comprehensive, systematic approach to
managing safety that integrates health and safety into every part
of an organization's operations .
Question 3: What are the three factors of Due Diligence?
a) Training, Supervision, and Equipment
b) Foreseeability, Preventability, and Control
c) Identification, Assessment, and Control
d) Planning, Organization, and Leadership
Correct Answer: b) Foreseeability, Preventability, and Control
Rationale: The three factors of due diligence are foreseeability
(could the incident have been anticipated?), preventability (could
it have been prevented?), and control (did the employer have
control over the circumstances?) .
Question 4: What is the correct order of the hierarchy of controls,
from most to least effective?
,a) Substitution, Elimination, Administrative, Engineering, PPE
b) PPE, Administrative, Engineering, Substitution, Elimination
c) Elimination, Substitution, Engineering, Administrative, PPE
d) Engineering, PPE, Elimination, Substitution, Administrative
Correct Answer: c) Elimination, Substitution, Engineering,
Administrative, PPE
Rationale: The hierarchy of controls prioritizes the most effective
measures first: Elimination (physically remove the hazard) is most
effective, followed by Substitution, Engineering Controls,
Administrative Controls, and finally Personal Protective Equipment
(PPE), which is the least effective .
Question 5: What is the primary role of an NCSO on a
construction site?
a) To supervise all trades
b) To champion and administer the health and safety
management system
c) To approve project budgets
d) To provide first aid only
Correct Answer: b) To champion and administer the health and
safety management system
Rationale: An NCSO is a safety leader, coach, and administrator
of the health, safety, and environment (HSE) management system.
They facilitate, audit, and advise, rather than acting as a trade
supervisor or budget approver .
Question 6: What are the two basic types of hazard assessment
processes?
, a) Formal and Site-specific
b) Internal and External
c) General and Task-specific
d) Proactive and Reactive
Correct Answer: a) Formal and Site-specific
Rationale: The two basic types are Formal Hazard Assessments
(comprehensive, systematic reviews of an entire job or process)
and Site-specific Hazard Assessments (focused on the unique
hazards of a particular worksite at a specific time) .
Question 7: According to Alberta OHS legislation, what is the
definition of "reasonably practicable"?
a) Only what is written in the code
b) What workers think is reasonable
c) The cheapest option available
d) Balancing likelihood and severity of hazard with cost and effort
to control
Correct Answer: d) Balancing likelihood and severity of hazard
with cost and effort to control
Rationale: The concept of "reasonably practicable" is central to
OHS law. It requires a balancing act, weighing the probability and
degree of harm against the time, trouble, and cost of taking
measures to avoid the risk
Question 8: What is the permissible exposure limit (PEL) concept
for WHMIS?
