ACSA NCSO Exam Questions and Verified
Answers (2025/2026 Edition)
Practice Examination - 90 Questions
1. According to the Alberta Occupational Health and Safety Act, what is the primary duty of an
employer regarding workplace safety?
A. Ensure the health and safety of all workers
B. Provide personal protective equipment only
C. Conduct safety meetings monthly
D. Report all incidents to the government
Answer: A
Rationale: Under the Alberta OHS Act, employers have the primary duty to ensure the health and safety
of all workers, including those who are not their direct employees. This encompasses hazard
identification, risk assessment, providing training, PPE, and implementing safety measures.
2. What is the maximum fine for a first-time offense under the Canadian Environmental Protection Act
for environmental violations?
**A. $500,000 per day**
B. $1,000,000 per day
C. $250,000 per day
D. $100,000 per day
Answer: A
Rationale: The Canadian Environmental Protection Act provides for fines of up to $500,000 per day for
first-time violations, with higher penalties for corporations. This reflects the seriousness of environmental
infractions and serves as a deterrent.
3. A worker falls from a height of 12 feet and sustains a fractured pelvis. Under Alberta OHS
legislation, this incident must be reported to OHS within what time frame?
A. Immediately
B. Within 24 hours
C. Within 72 hours
D. Within 7 days
,Answer: A
Rationale: Any incident that results in death, serious injury, or an incident with potential for serious injury
must be reported to OHS immediately. A fall from height resulting in fracture constitutes a serious injury
requiring immediate notification.
4. What is the minimum distance that a guardrail must be installed from an unprotected edge?
A. 1 meter
B. 1.5 meters
C. 2 meters
D. 0.5 meters
Answer: A
Rationale: Guardrails must be installed at least 1 meter from an unprotected edge to prevent falls. This
distance allows workers to work safely without being in close proximity to the hazard.
5. A confined space entry permit must include which of the following elements?
A. All of the above
B. Atmospheric testing results
C. Names of entrants and attendants
D. Rescue procedures and equipment
Answer: A
Rationale: Confined space entry permits must include atmospheric testing results, names of entrants and
attendants, rescue procedures and equipment, time of entry, and emergency contact information. The
permit is a comprehensive document ensuring all safety measures are in place.
6. What is the maximum allowable exposure time for a worker in a noise level of 95 dBA without
hearing protection?
A. 4 hours
B. 2 hours
C. 1 hour
D. 30 minutes
Answer: A
Rationale: According to occupational exposure limits, at 95 dBA, the maximum allowable exposure time
without hearing protection is 4 hours. This follows the 3 dB exchange rate rule, where exposure time
halves with each 3 dB increase.
7. A worker is using a Class 1 full-body harness. What is the maximum arrest force that can be applied
to the worker during a fall?
, A. 1,800 pounds
B. 2,000 pounds
C. 2,200 pounds
D. 2,500 pounds
Answer: A
Rationale: Class 1 full-body harnesses must limit the maximum arrest force to 1,800 pounds (8 kN). This
is to prevent internal injuries and ensure the harness doesn't cause trauma during fall arrest.
8. What is the minimum frequency for conducting an emergency response drill at a worksite?
A. Annually
B. Semi-annually
C. Quarterly
D. Monthly
Answer: A
Rationale: Under most OHS regulations, emergency response drills must be conducted at least annually.
However, higher-risk worksites may require more frequent drills. Annual drills ensure that workers are
familiar with emergency procedures.
9. A crane operator is lifting a load of 5,000 kg. What is the minimum distance from the load that
workers must maintain during the lift?
A. 3 meters
B. 5 meters
C. 10 meters
D. 15 meters
Answer: B
Rationale: The minimum distance that workers must maintain from a suspended load is 5 meters
(approximately the length of the load). This is to prevent injury if the load swings or falls.
10. What is the maximum slope that a ladder can be placed at without being secured?
A. 1:4 ratio (approximately 75 degrees)
B. 1:3 ratio (approximately 71 degrees)
C. 1:5 ratio (approximately 78 degrees)
D. 1:2 ratio (approximately 63 degrees)
Answer: A
Rationale: The 1:4 ratio (vertical to horizontal) is the maximum slope for an unsecured ladder, which
corresponds to approximately 75 degrees. A steeper angle increases the risk of slipping and falling
backwards.
Answers (2025/2026 Edition)
Practice Examination - 90 Questions
1. According to the Alberta Occupational Health and Safety Act, what is the primary duty of an
employer regarding workplace safety?
A. Ensure the health and safety of all workers
B. Provide personal protective equipment only
C. Conduct safety meetings monthly
D. Report all incidents to the government
Answer: A
Rationale: Under the Alberta OHS Act, employers have the primary duty to ensure the health and safety
of all workers, including those who are not their direct employees. This encompasses hazard
identification, risk assessment, providing training, PPE, and implementing safety measures.
2. What is the maximum fine for a first-time offense under the Canadian Environmental Protection Act
for environmental violations?
**A. $500,000 per day**
B. $1,000,000 per day
C. $250,000 per day
D. $100,000 per day
Answer: A
Rationale: The Canadian Environmental Protection Act provides for fines of up to $500,000 per day for
first-time violations, with higher penalties for corporations. This reflects the seriousness of environmental
infractions and serves as a deterrent.
3. A worker falls from a height of 12 feet and sustains a fractured pelvis. Under Alberta OHS
legislation, this incident must be reported to OHS within what time frame?
A. Immediately
B. Within 24 hours
C. Within 72 hours
D. Within 7 days
,Answer: A
Rationale: Any incident that results in death, serious injury, or an incident with potential for serious injury
must be reported to OHS immediately. A fall from height resulting in fracture constitutes a serious injury
requiring immediate notification.
4. What is the minimum distance that a guardrail must be installed from an unprotected edge?
A. 1 meter
B. 1.5 meters
C. 2 meters
D. 0.5 meters
Answer: A
Rationale: Guardrails must be installed at least 1 meter from an unprotected edge to prevent falls. This
distance allows workers to work safely without being in close proximity to the hazard.
5. A confined space entry permit must include which of the following elements?
A. All of the above
B. Atmospheric testing results
C. Names of entrants and attendants
D. Rescue procedures and equipment
Answer: A
Rationale: Confined space entry permits must include atmospheric testing results, names of entrants and
attendants, rescue procedures and equipment, time of entry, and emergency contact information. The
permit is a comprehensive document ensuring all safety measures are in place.
6. What is the maximum allowable exposure time for a worker in a noise level of 95 dBA without
hearing protection?
A. 4 hours
B. 2 hours
C. 1 hour
D. 30 minutes
Answer: A
Rationale: According to occupational exposure limits, at 95 dBA, the maximum allowable exposure time
without hearing protection is 4 hours. This follows the 3 dB exchange rate rule, where exposure time
halves with each 3 dB increase.
7. A worker is using a Class 1 full-body harness. What is the maximum arrest force that can be applied
to the worker during a fall?
, A. 1,800 pounds
B. 2,000 pounds
C. 2,200 pounds
D. 2,500 pounds
Answer: A
Rationale: Class 1 full-body harnesses must limit the maximum arrest force to 1,800 pounds (8 kN). This
is to prevent internal injuries and ensure the harness doesn't cause trauma during fall arrest.
8. What is the minimum frequency for conducting an emergency response drill at a worksite?
A. Annually
B. Semi-annually
C. Quarterly
D. Monthly
Answer: A
Rationale: Under most OHS regulations, emergency response drills must be conducted at least annually.
However, higher-risk worksites may require more frequent drills. Annual drills ensure that workers are
familiar with emergency procedures.
9. A crane operator is lifting a load of 5,000 kg. What is the minimum distance from the load that
workers must maintain during the lift?
A. 3 meters
B. 5 meters
C. 10 meters
D. 15 meters
Answer: B
Rationale: The minimum distance that workers must maintain from a suspended load is 5 meters
(approximately the length of the load). This is to prevent injury if the load swings or falls.
10. What is the maximum slope that a ladder can be placed at without being secured?
A. 1:4 ratio (approximately 75 degrees)
B. 1:3 ratio (approximately 71 degrees)
C. 1:5 ratio (approximately 78 degrees)
D. 1:2 ratio (approximately 63 degrees)
Answer: A
Rationale: The 1:4 ratio (vertical to horizontal) is the maximum slope for an unsecured ladder, which
corresponds to approximately 75 degrees. A steeper angle increases the risk of slipping and falling
backwards.
