AL Sitework Practice Questions - Alabama Sitework Contractor Examination Exam

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Atmospheric hazards in trenches may include oxygen deficiency or toxic/flammable gases. What is the safe practice when such hazards may exist?

Ignore the air quality because trenches are always safe Test the atmosphere as required, ventilate or use respiratory protection, and follow confined-space/excavation safety procedures Light a match to check for gases Only test after a worker becomes ill

Correct Answer:

Test the atmosphere as required, ventilate or use respiratory protection, and follow confined-space/excavation safety procedures

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