Spaces shall be considered manned if a roving patrol or system monitor enters the space at least every - minutes.

Spaces shall be considered manned if a roving patrol or system monitor enters the space at least every - minutes.

• A. 45
• B. 60
• C. 30
• D. 15

Answer: (B)

Spaces are considered manned when there is periodic human presence in or near the space to monitor conditions and respond to hazards. The required interval for a roving patrol or system monitor is sixty minutes, meaning someone must enter or check the space at least once an hour to maintain that classification. Shorter intervals would imply a higher level of surveillance than this standard calls for, while sixty minutes strikes a practical balance between safety and operational efficiency.

Spaces are considered manned when there is periodic human presence in or near the space to monitor conditions and respond to hazards. The required interval for a roving patrol or system monitor is sixty minutes, meaning someone must enter or check the space at least once an hour to maintain that classification. Shorter intervals would imply a higher level of surveillance than this standard calls for, while sixty minutes strikes a practical balance between safety and operational efficiency.