The Daytona Beach project has this confined-space condition: vault may contain hazardous atmosphere. Which safety control should be completed before entry?
Correct Answer
A) atmosphere testing before entry
Confined-space work requires evaluation, atmospheric controls, and rescue planning before entry.
Why This Is the Correct Answer
Confined-space work requires evaluation, atmospheric controls, and rescue planning before entry.
Why the Other Options Are Wrong
Option B: enter and watch for symptoms
enter and watch for symptoms may relate to another site control, but it does not remove or guard the confined-space entry control exposure being tested.
Option C: blow air a minute, then enter
blow air a minute, then enter may relate to another site control, but it does not remove or guard the confined-space entry control exposure being tested.
Option D: test only the top of the space
test only the top of the space may relate to another site control, but it does not remove or guard the confined-space entry control exposure being tested.
Memory Technique
Confined-Space Entry lock for Superintendent Reviews: evaluation is the harm, atmospheric is the guard.
Reference Hint
Open-book path: tab OSHA 29 CFR 1926 to Subpart AA, 1926.1200 Permit-required confined spaces; verify the OSHA safety threshold or jobsite control before answering.
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