Which term describes confined spaces that cannot contain any hazard that may cause death or serious physical harm?

• A. Non-permit
• B. Permit-required
• C. Hazardous
• D. Confined

Answer: (A)

This question tests understanding of how confined spaces are classified by permit requirements. If a space contains or could contain hazards that could cause death or serious physical harm, it is a permit-required confined space and requires an entry permit and specific safety controls. If a space cannot contain any hazard of that level, it does not require a permit; it's called a non-permit confined space. Therefore, the term describing spaces that cannot contain any hazard is non-permit. Other terms don’t fit this classification: permit-required describes spaces with hazards that need a permit; hazardous isn’t a formal space-typing term; confined describes a space’s size/entry but not its hazard or permit status.