CRST Cheat Sheet 2026

The 30 highest-yield CRST facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. WHMIS 2015 is a comprehensive system designed to provide information on what type of workplace hazards? → Hazardous products (controlled products/chemicals).
2. Which of the following is a key component of a successful safety inspection? → Involving employees in the inspection process
3. The study of human body measurements, such as size, strength, and physical capacity, for use in design is known as: → Anthropometry
4. Which of the following is an example of an engineering control for noise hazards? → Installing noise barriers around machinery
5. What is the primary purpose of conducting a Training Needs Analysis (TNA)? → To identify performance gaps and determine if training is the appropriate solution.
6. Which hazard category includes chemical spills, toxic substances, and exposure to corrosive materials? → Chemical hazards
7. Which of the following is an example of an administrative control for fire prevention? → Implementing a hot work permit system.
8. Which of the following is an example of a 'leading indicator' of safety performance? → The number of corrective actions closed from safety inspections.
9. Which of the following is the best example of a 'leading indicator' for measuring the performance of a Safety Management System? → The percentage of required safety inspections completed on schedule.
10. Which of the following is one of the three fundamental rights granted to workers under most Canadian OHS legislation? → The right to refuse unsafe work.
11. Human factors, such as high cognitive workload and fatigue, can contribute to workplace incidents primarily by: → Increasing the probability of human error.
12. In the event of a hazardous chemical spill, what is the most important document to consult for initial response information? → The Safety Data Sheet (SDS).
13. In Canadian OHS legislation, the 'Internal Responsibility System' (IRS) is founded on the principle that: → Employers and workers should collaborate to identify and resolve health and safety issues.
14. What are the three primary routes of entry for chemical contaminants into the human body in a workplace? → Inhalation, skin absorption, and ingestion.
15. Which of the following is a core principle of andragogy (adult learning theory)? → Adults need to be involved in the planning and evaluation of their instruction.
16. What is the primary legislation governing Occupational Health and Safety in Canada? → The Occupational Health and Safety Act
17. Which form of ionizing radiation has the lowest penetrating power and can be stopped by a sheet of paper? → Alpha particles
18. When responding to a workplace medical emergency, what is the very first priority for the responder? → Assess the scene for any potential hazards.
19. According to Canadian risk management principles, such as those outlined in CSA Z1002, what is the definition of 'risk'? → The combination of the likelihood of harm and the severity of that harm.
20. Which of the following is the best example of an administrative control for reducing noise exposure? → Rotating workers through high-noise and low-noise areas during a shift.
21. A Job Hazard Analysis (JHA) is a systematic process that involves which three key steps? → Break the job into steps, identify hazards, and determine control measures.
22. A direct-reading instrument is most suitable for which of the following sampling applications? → Obtaining an instantaneous measurement of a gas concentration in a specific area.
23. How should evidence be handled during an incident investigation? → Evidence should be collected and preserved carefully to maintain its integrity
24. According to the hierarchy of hazard controls, which measure is considered the most effective? → Elimination of the hazard
25. Which administrative control would be most appropriate for reducing worker chemical exposure levels? → Implementing job rotation schedules to limit individual exposure duration
26. What is the primary purpose of conducting regular emergency drills in a workplace? → To test the plan's effectiveness and identify areas for improvement.
27. What is the primary objective of an incident investigation? → To gather information for legal purposes
28. What is the primary function of a risk matrix in the risk assessment process? → To prioritize risks based on their combined likelihood and severity.
29. Which of the following best describes a 'quantitative risk assessment'? → A risk assessment that assigns numerical values to the likelihood and consequence of harm
30. When conducting a workplace hazard inspection, which approach is most effective? → Using a systematic, planned approach with a standardized checklist