HSE Cheat Sheet 2026

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

1. Which type of respirator provides the highest level of respiratory protection for IDLH (immediately dangerous to life or health) atmospheres? → Self-contained breathing apparatus (SCBA) in positive-pressure mode
2. Which type of ventilation system dilutes contaminated workplace air with fresh air rather than capturing contaminants at their source? → General dilution ventilation
3. What does a Safety Data Sheet (SDS) provide? → Chemical properties and handling information
4. Which document is required by EPCRA Section 311 and must be provided to the Local Emergency Planning Committee (LEPC)? → Safety Data Sheet (SDS) for hazardous chemicals on-site
5. Which corrective action category focuses on eliminating the hazard at its source rather than managing exposure to it? → Engineering controls
6. Which agency administers the National Incident Management System (NIMS), which standardizes emergency response across all levels of government? → FEMA (Federal Emergency Management Agency)
7. Work-related musculoskeletal disorders (WMSDs) are primarily caused by which combination of ergonomic risk factors? → Force, repetition, awkward postures, contact stress, and vibration
8. A facility subject to the Spill Prevention, Control, and Countermeasure (SPCC) rule must have its SPCC Plan certified by: → A licensed Professional Engineer (PE) for most facilities
9. Whole-body vibration (WBV) is most associated with which occupational health disorder? → Low back pain and spinal degeneration
10. Which of the following describes a 'safety culture' in an organization? → The shared values, beliefs, and behaviors related to safety that employees exhibit
11. Under RCRA, a 'small quantity generator' (SQG) generates between how many kilograms of hazardous waste per calendar month? → 100–1,000 kg
12. A safety climate survey differs from a safety culture assessment in that it: → Captures a snapshot of employee perceptions and attitudes at a point in time
13. A Drill differs from a Full-Scale Exercise primarily because a drill: → Practices a single, specific operation or function
14. Which factor most strongly predicts whether employees will intervene when they witness a coworker engaging in an unsafe act? → Whether the organizational culture normalizes peer-to-peer safety intervention
15. In the context of HSE culture, 'felt leadership' refers to: → The degree to which employees perceive that management genuinely cares about their safety
16. An occupational health nurse notices a cluster of carpal tunnel syndrome cases in the packing department. What is the most appropriate first step? → Conduct a systematic ergonomic workstation assessment of the affected department
17. Which OSHA permissible exposure limit (PEL) type represents the maximum concentration a worker can be exposed to for any 15-minute period? → Short-term exposure limit (STEL)
18. The Incident Command System (ICS) principle of 'unity of command' means that: → Each responder reports to only one supervisor
19. During incident investigation, the '5 Whys' technique is primarily used to: → Identify root causes by repeatedly asking why a failure occurred
20. Under RCRA, which category of hazardous waste generator is subject to the most stringent regulatory requirements? → Large Quantity Generator (LQG)
21. What is the recommended sequence for using a fire extinguisher? → PASS — Pull, Aim, Squeeze, Sweep
22. When an emergency response plan requires an 'accountability system,' what is its primary function? → Know the location and status of all personnel during an emergency
23. An environmental audit reveals that a facility has been storing hazardous waste for 95 days without a permit. Under RCRA, how should this be classified? → A violation because LQGs may only store waste for 90 days without a permit
24. What is 'carbon footprint'? → Total greenhouse gases emitted by activities
25. Which factor is MOST critical when selecting a Incident Command Post (ICP) location? → Upwind and uphill position outside the hazard zone
26. What does a health hazard assessment typically include? → Reviewing health records and workplace exposure levels
27. When management responds to a safety concern by saying 'we've always done it this way,' this most likely indicates: → Cultural resistance to change and potential complacency
28. A storm drain at a manufacturing facility discharges to a nearby river after a rain event. What type of pollution does this represent? → Point source pollution
29. A Job Hazard Analysis (JHA) is BEST conducted at which point in a project lifecycle? → During the planning phase before work begins
30. What does a 'near miss' event signify in safety management? → An unplanned event that did not result in harm but had the potential to do so