Which statement best describes the Domino Theory of accidents?

Which statement best describes the Domino Theory of accidents?

• A. A chain of sequential events triggers an accident; removing a factor prevents the chain reaction.
• B. Accidents occur due to a single, isolated cause.
• C. Accidents are random and cannot be prevented.
• D. The presence of safety procedures guarantees zero accidents.

Answer: (A)

The Domino Theory describes an accident as the result of a chain of sequential events. In this view, an accident happens when a series of linked factors line up, and removing any one factor breaks the chain and prevents the incident. That’s why the best description is that a chain of events triggers an accident and removing a factor stops the chain reaction. This perspective underlines prevention by interrupting the sequence—by eliminating unsafe conditions, preventing unsafe acts, or reducing energy transfer. It also helps explain why safety measures don’t guarantee zero accidents, but they significantly lower risk by breaking the progression of events.

The Domino Theory describes an accident as the result of a chain of sequential events. In this view, an accident happens when a series of linked factors line up, and removing any one factor breaks the chain and prevents the incident. That’s why the best description is that a chain of events triggers an accident and removing a factor stops the chain reaction. This perspective underlines prevention by interrupting the sequence—by eliminating unsafe conditions, preventing unsafe acts, or reducing energy transfer. It also helps explain why safety measures don’t guarantee zero accidents, but they significantly lower risk by breaking the progression of events.