What is a typical signal used to indicate ready status in a relay operation?

• A. A whistle blast from the operator.
• B. A written note from the supervisor.
• C. Clear radio or hand signal confirming connection and flow through all segments.
• D. A visual eye contact cue.

Answer: (C)

In relay operations, a signal that clearly shows the entire line is ready is essential. The standard method is a clear radio transmission or a properly executed hand signal that confirms both the connection is secure and water is flowing through all segments. Radios provide fast, universal communication across crews, while hand signals give a reliable visual cue when radios aren’t feasible or as a backup in a loud environment. This combined approach ensures everyone knows the system is ready to proceed, avoiding delays or miscommunication. Less reliable options—like a whistle blast, a written note, or just eye contact—can be misread, delayed, or missed in the dynamic, noisy scene of a relay operation.