When must an excavation atmosphere be tested?
Correct Answer
A) Before entry where oxygen deficiency or hazardous atmosphere could reasonably be expected.
OSHA requires testing where hazardous atmospheres could reasonably exist, such as near landfills or hazardous substances.
Why This Is the Correct Answer
OSHA requires testing where hazardous atmospheres could reasonably exist, such as near landfills or hazardous substances.
More NASCLA Questions
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A floor under construction has 7,800 sf of protected building area. Using one 2A extinguisher per 3,000 sf or major fraction, how many extinguishers are required before travel-distance checks?
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