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Answered

If there's a risk that toxic gas could be present, when should an excavation site's competent person test for atmospheric hazards?

A. After the trench has reached a depth of 6 feet (1.8 m)
B. Before the trench box is in place
C. When the ambient temperature goes above 75 degrees Fahrenheit (23.8 degrees Celsius)
D. Before employees enter the trench



Answer :

GinnyAnswer

Final answer:

The competent person should test for atmospheric hazards before employees enter the trench to ensure safety.


Explanation:

Before employees enter the trench is when the competent person should test for atmospheric hazards if there is a risk of toxic gas presence. This precaution ensures the safety of workers before they are exposed to any potential dangers.


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