Safety & Codes第 108 / 110 题
When entering a permit-required confined space, atmospheric testing should be performed to check for what?
a.Refrigerant color
b.Duct dimensions
c.Oxygen level and the presence of toxic or flammable gases
d.Blower speed
解析
Before and during entry into a permit-required confined space, the atmosphere is tested for adequate oxygen and for toxic or flammable gases to ensure it is safe. Continuous monitoring and ventilation may be required. Cal/OSHA mandates these procedures to prevent asphyxiation and explosion.
法律依据: Cal/OSHA Title 8免费刷完整 110 道题库 — 无需注册。
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