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Consider the following accident scenario: Two workers were assigned to replace a water valve located in an underground concrete vault.
Consider the following accident scenario:
Two workers were assigned to replace a water valve located in an underground concrete vault. After removing the manhole cover, worker #1 climbed down the ladder into the vault. Worker #1 collapsed and became unconscious within seconds of reaching the bottom. Worker #2 went down the ladder to rescue worker #1 but was quickly overcome by the lack of oxygen. Both workers died at the bottom of the vault.
Discuss how you could apply a domino theory to investigate this accident. You may make additional assumptions about the scenario, as needed, for your discussion.
