Risk Control and Mitigation Strategies Flashcards
7 cards from real ARM 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 Control and Mitigation Strategies flashcards as text
In Heinrich's domino theory, which domino did Heinrich identify as the most effective point at which to break the accident sequence?
Answer: Unsafe act or mechanical/physical hazard
Heinrich believed removing the unsafe act or mechanical hazard, the central domino, was the best way to prevent the accident and injury.
Which approach to accident causation views the organization as a whole set of interacting components and seeks to identify how failures in one part affect others?
Answer: Systems safety approach
The systems safety approach treats accidents as failures of interrelated system components and analyzes those interactions.
The Technique of Operations Review (TOR) attributes accidents primarily to:
Answer: Failures of management and supervisory systems
TOR holds that accidents stem from operational errors that management controls, not just individual worker mistakes.
A safety team builds a top-down diagram starting with an undesired event and working backward through AND/OR gates to identify contributing causes. This tool is called:
Answer: Fault tree analysis
Fault tree analysis starts with a top event and uses logic gates to trace the combinations of causes that could produce it.
Which tool examines each component of a system one at a time to determine how it could fail and what the effects of that failure would be?
Answer: Failure mode and effects analysis (FMEA)
FMEA is a bottom-up method that evaluates each component's potential failure modes and their consequences.
Root cause analysis is most useful in risk control because it:
Answer: Identifies underlying causes so corrective actions prevent recurrence
Root cause analysis targets the fundamental reasons for a loss so that fixes address causes rather than symptoms.
In the hierarchy of controls, which option is generally considered the LEAST effective method of protecting workers from a hazard?
Answer: Personal protective equipment
PPE is the last line of defense because it depends on correct, consistent use by each worker and does not remove the hazard.