NM CID GF-1 Practice Questions - New Mexico CID GF-1 Airports Contractor Examination Exam

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Per OSHA 1926.651(g), in excavations deeper than 4 feet where a hazardous atmosphere could reasonably be expected, what must occur before employees enter?

The trench may be entered immediately if no odor is noticed Only a carbon-monoxide reading is required; oxygen need not be checked Testing is required only in excavations deeper than 20 feet Atmospheric testing must be conducted, and adequate precautions taken if a hazardous atmosphere exists

Correct Answer:

Atmospheric testing must be conducted, and adequate precautions taken if a hazardous atmosphere exists

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