If a signal is not understood by the operator, what is the appropriate response?

When a signal is not understood by the operator, the appropriate response should be to seek clarification rather than responding with no action. Understanding signals is critical for maintaining safety on-site, as misinterpretation can lead to serious accidents or injuries.

If the operator does not clearly understand a signal, asking for clarification ensures that everyone is on the same page and that operations can proceed safely. This proactive approach prevents confusion and miscommunication, which are significant factors in many accidents. The operator's responsibility is to confirm understanding before acting, ensuring safety protocols are observed.

Additionally, stopping all operations could be necessary if there is significant confusion or potential for hazard, but the immediate step should first be asking for clarification about the signal.