OHST Cheat Sheet 2026

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

1. What is the most important element of effective professional communication? → Clarity and accuracy of the message tailored to the audience
2. What does 'shelter-in-place' mean in an emergency response context? → Remaining indoors and sealing the building against outside hazards
3. Why is data security important when using professional technology tools? → To protect sensitive information from unauthorized access, breaches, and loss
4. Which of the following is a primary ergonomic risk factor for musculoskeletal disorders? → Repetitive motion combined with forceful exertion
5. What is the primary purpose of data analysis in professional practice? → To transform raw data into actionable insights for decision-making
6. What is the purpose of a risk register? → To document, track, and manage all identified risks throughout a project or operation
7. What role does human factors engineering play in workplace safety? → It designs systems, tools, and environments to match human capabilities and limitations
8. How should employees be made aware of the workplace emergency action plan? → Through initial training and whenever the plan is changed or an employee's role changes
9. Which approach is most effective for controlling ergonomic hazards? → Applying the hierarchy of controls, starting with engineering controls
10. What is the primary benefit of adopting technology in professional practice? → Improved efficiency, accuracy, and the ability to scale operations
11. What does HAZWOPER stand for? → Hazardous Waste Operations and Emergency Response
12. Why is stakeholder buy-in important for strategic implementation? → Because successful implementation requires support and cooperation from those affected
13. A colorimetric detector tube works by: → Producing a visible color change in a reagent as the target gas passes through
14. Which quality management tool is used to identify the most significant factors in a dataset? → Pareto chart (80/20 rule)
15. What does MSD stand for in the context of workplace ergonomics? → Musculoskeletal Disorder
16. What should an effective professional report include? → Clear objectives, methodology, findings, analysis, and actionable recommendations
17. How should negative or difficult information be communicated to stakeholders? → Honestly and promptly, with proposed solutions or mitigation steps
18. What is delegation in the context of team management? → Assigning tasks and authority to team members while maintaining accountability
19. What is the purpose of a technology needs assessment? → To identify gaps between current capabilities and desired outcomes
20. The designation 'IDLH' in industrial hygiene represents a concentration that is: → Immediately Dangerous to Life or Health
21. Which risk response strategy involves reducing the likelihood or impact of a risk? → Risk mitigation
22. What is the consequence of non-compliance with mandatory regulations? → Penalties including fines, license revocation, and potential legal action
23. OSHA requires employers to establish a written respiratory protection program when: → Any employee uses a respirator in the workplace
24. How should conflicts within a team be addressed? → Promptly and directly, focusing on issues rather than personalities
25. What should a communication plan include at minimum? → Stakeholder list, message content, channels, frequency, and responsible parties
26. How should best practices be adapted when applied to new situations? → Evaluate the specific context and modify as needed while maintaining core principles
27. What is a root cause analysis used for? → To identify the underlying cause of a problem rather than just addressing symptoms
28. What does a risk matrix assess? → The probability and impact of identified risks
29. What is the primary goal of ergonomics in occupational health and safety? → Fitting the work environment to the worker to reduce injury risk
30. Under OSHA 29 CFR 1910.95, which elements must be included in a hearing conservation program? → Audiometric testing, training on hearing protection, and noise monitoring/controls