Risk Assessment & Hazard Control Flashcards
7 cards from real SHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Risk Assessment & Hazard Control flashcards as text
During an incident investigation, a 'root cause' is best defined as:
Answer: The underlying systemic deficiency that, if corrected, prevents recurrence
Root causes are foundational failures in management systems or conditions that, when addressed, prevent similar incidents from recurring.
Which control measure is classified as an administrative control?
Answer: Implementing a job rotation schedule to limit repetitive motion
Job rotation is an administrative control because it changes how work is organized rather than altering the physical hazard itself.
The primary purpose of a Pre-Task Planning (PTP) or Toolbox Talk related to hazard control is to:
Answer: Brief workers on site-specific hazards before work begins
Pre-task planning sessions communicate daily or task-specific hazards and controls to workers before they begin the activity.
In Process Safety Management (PSM), a Process Hazard Analysis (PHA) must be revalidated at least every:
Answer: 5 years
OSHA's PSM standard (29 CFR 1910.119) requires PHA revalidation at least every five years to ensure continued accuracy.
Which concept describes the idea that accidents result from multiple contributing factors aligned simultaneously, like holes in Swiss cheese?
Answer: Reason's Swiss Cheese Model
James Reason's Swiss Cheese Model illustrates that accidents occur when multiple latent failures align, allowing a hazard to reach an outcome.
A safety professional should prioritize which type of control when engineering controls alone cannot reduce risk to an acceptable level?
Answer: A combination of engineering and administrative controls before relying solely on PPE
When engineering controls are insufficient, layering them with administrative controls further reduces exposure before falling back on PPE as a last resort.
A noise hazard assessment reveals worker exposure at 92 dBA TWA. Per OSHA 29 CFR 1910.95, which action is required?
Answer: Enroll workers in a Hearing Conservation Program
OSHA's action level for noise is 85 dBA TWA; at 92 dBA, enrollment in a Hearing Conservation Program including audiometric testing is mandatory.