Practice question

What is the principal limitation of relying on senses (sight/smell/taste) to identify hazardous materials?

Always reliable
Senses can be overwhelmed; many hazardous materials are odorless and tasteless, and exposure to detect them is itself dangerous
Senses are only valid downwind
Only safe with hearing protection

Answer: B — Senses can be overwhelmed; many hazardous materials are odorless and tasteless, and exposure to detect them is itself dangerous

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