What maximum rate for flashes per minute is specified by the deviation table?

• A. doesn't exceed 30 flashes per minute
• B. 60 flashes per minute
• C. 72 hours
• D. Single flashing

Answer: (A)

Deviation tables define the limits for how signaling activity may occur so that observations remain clear and interpretable. When it comes to flashes per minute, the table sets a safe, readable cadence, preventing signals from becoming so rapid that they’re hard to distinguish or misread. The maximum allowed rate is 30 flashes per minute, which corresponds to about one flash every two seconds. This pacing helps ensure observers can reliably count and interpret the signal under various conditions, reducing confusion or miscommunication. Rates higher than this, like 60 flashes per minute, would be too fast to track accurately. The other options aren’t even rates per minute, so they don’t apply.