Free Energy Safety Canada Common Safety Orientation (CSO) Final Exam Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Energy Safety Canada Common Safety Orientation (CSO) Final Exam practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1At a Canadian energy worksite, workers and the employer jointly identify safety problems, while each person remains responsible for their own safety and that of coworkers. Which occupational health and safety concept describes this arrangement?

   1. A.Internal responsibility systemCorrect answer: A
   2. B.Progressive disciplinary system
   3. C.Workers' compensation system
   4. D.External inspection programme

   Explanation: CCOHS states, "The internal responsibility system puts in place an employer-worker partnership in ensuring a safe and disease-free workplace." This describes shared workplace responsibility, rather than compensation, discipline, or external enforcement.

   Reference: CCOHS — Internal Responsibility System — What is the Internal Responsibility System?

2. 2A supervisor privately explains a documented work error, uses objective language and offers practical guidance to help the worker improve. How is this conduct generally classified when it is reasonable and fair?

   1. A.Psychological harassment
   2. B.Constructive feedbackCorrect answer: B
   3. C.Workplace violence
   4. D.Discriminatory treatment

   Explanation: CCOHS states, "Comments that are objective and are intended to provide constructive feedback are not usually considered bullying, but rather are intended to assist the worker with their work." The stated objective, fair coaching falls within that boundary.

   Reference: CCOHS — Bullying in the Workplace — What might not be considered bullying?

3. 3Before a safety-sensitive shift, a worker realizes an over-the-counter medicine may affect safe performance. Under Energy Safety Canada's Fit for Duty guidance, whom must the worker notify at the workplace?

   1. A.The supervisor or employerCorrect answer: A
   2. B.The safety committee worker representative
   3. C.The designated workplace first-aid attendant
   4. D.The worker's local union representative

   Explanation: Energy Safety Canada states, "I notify my employer if I am using over-the-counter medications that may influence my ability to perform work safely". The guide also requires immediate supervisor notification of possible unfitness. A first-aid attendant, union representative or committee representative does not replace that required workplace reporting line.

   Reference: Energy Safety Canada — Life Saving Rules Explanation Guide — p.11, Fit for Duty — worker commitments and Worker

4. 4During an Energy Wheel assessment, a worker identifies a hydraulic line containing compressed liquid. Which energy category describes the energy associated with compression of the liquid?

   1. A.Electrical
   2. B.Mechanical
   3. C.PressureCorrect answer: C
   4. D.Sound

   Explanation: The guidebook defines pressure energy as "Liquid or gas compressed or under vacuum" and includes hydraulic lines as examples. The question asks about compression of the fluid, rather than movement of machine parts or electrical current.

   Reference: WorkSafe Saskatchewan — Serious Incident and Fatality Prevention Model and Guidebook — p.13, energy-source table, Pressure

5. 5A worker stops noticing hydrogen sulfide odour even though the gas remains present. Which effect of hydrogen sulfide makes smell unreliable as a warning?

   1. A.Pulmonary edema
   2. B.Eye irritation
   3. C.Olfactory fatigueCorrect answer: C
   4. D.Frostbite

   Explanation: CCOHS states that hydrogen sulfide "Can dull the sense of smell." Olfactory fatigue means reduced sensitivity to odour. The other listed health effects do not explain the loss of odour detection.

   Reference: CCOHS — Hydrogen Sulfide — What are other names or identifying information for hydrogen sulfide? — Odour

6. 6A crew describes an unguarded rotating shaft as a potential source of injury, before estimating the chance or seriousness of contact. Which assessment term names that potential source of harm?

   1. A.Risk
   2. B.Probability
   3. C.Severity
   4. D.HazardCorrect answer: D

   Explanation: CCOHS defines a hazard as "a potential source of injury, adverse health effect, or damage to people, structures, equipment, or the environment." The shaft is the source; risk, probability and severity describe different aspects of evaluating possible harm.

   Reference: CCOHS — Hazard and Risk: Risk Assessment — What is a risk assessment? — Hazard definition

7. 7A worker approaches a confined-space opening head first while the rest of the body remains outside. Under Energy Safety Canada's entry guidance, which is the earliest of these points that constitutes entry?

   1. A.When the worker's head crosses the access planeCorrect answer: A
   2. B.When the worker's shoulders cross the access plane
   3. C.When the worker's waist crosses the access plane
   4. D.When the worker's feet cross the access plane

   Explanation: Energy Safety Canada states that entry includes "the worker’s head crossing the plane of the confined space access". Authorization and other entry controls therefore apply before that point; entry does not wait until the shoulders, waist or feet follow.

   Reference: Energy Safety Canada — Life Saving Rules Explanation Guide — p.2, Confined Space — Additional guidance

8. 8An evacuation plan identifies a safe assembly location for head counts. After leaving the danger zone, where should an evacuated worker report so the planned accountability check can be completed?

   1. A.The designated safe assembly locationCorrect answer: A
   2. B.The nearest vehicle parking location
   3. C.The nearest outside entrance landing
   4. D.The usual crew transportation pickup

   Explanation: CCOHS directs planners to "Specify safe locations for staff to gather for head counts to ensure that everyone has left the danger zone." Workers should gather at the designated assembly location; being elsewhere outside does not place them at the planned accountability point.

   Reference: CCOHS — Emergency Planning — Procedures — evacuation and head counts

9. 9A tool drops during work but causes no injury or property damage. Which incident-reporting term commonly describes this no-loss event?

   1. A.First-aid case
   2. B.Lost-time injury
   3. C.Near missCorrect answer: C
   4. D.Property-damage case

   Explanation: CCOHS recommends reporting and investigating "incidents that do not cause injury or damage". It calls these near-miss, near-hit or no-loss incidents. No actual injury or damage is present to support the other case categories. This classifies the actual loss; it does not determine the event’s potential severity.

   Reference: CCOHS — Hazard and Near-Miss Reporting by Workers — Should I report near misses?

10. 10A worker who is not the designated signaller sees a person enter the crane load's path and gives a clear STOP signal. Who has authority to give this signal?

    1. A.Any person who recognizes the need to stop the movement.Correct answer: A
    2. B.The designated signaller who is directing the movement.
    3. C.The lifting supervisor who is overseeing the movement.
    4. D.The crane operator who is carrying out the movement.

    Explanation: CCOHS states, "A crane operator must obey STOP signals no matter who gives it." The worker does not need to be the designated signaller to give an effective STOP signal.

    Reference: CCOHS — Crane and Hoist Hand Signals — When should the crane operator follow hand signals?